{"id":77452,"date":"2025-06-02T11:53:21","date_gmt":"2025-06-02T08:53:21","guid":{"rendered":"https:\/\/foxminded.ua\/?p=77452"},"modified":"2025-06-02T11:53:21","modified_gmt":"2025-06-02T08:53:21","slug":"dinamicheskaya-filtratsiya-v-spring-data-jpa-2","status":"publish","type":"post","link":"https:\/\/foxminded.ua\/ru\/dinamicheskaya-filtratsiya-v-spring-data-jpa-2\/","title":{"rendered":"Spring Data JPA Specifications: \u043c\u043e\u0449\u043d\u044b\u0439 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442 \u0434\u043b\u044f \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0444\u0438\u043b\u044c\u0442\u0440\u043e\u0432. \u0427\u0430\u0441\u0442\u044c 2"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u0412 <a href=\"https:\/\/foxminded.ua\/ru\/dinamicheskaya-filtratsiya-v-spring-data-jpa-1\/\">\u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0435\u0439 \u0447\u0430\u0441\u0442\u0438<\/a> \u043c\u044b \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043b\u0438 <a href=\"https:\/\/foxminded.ua\/ru\/java-1\/\">Spring<\/a> Data JPA Specifications \u0438 \u0441\u043e\u0437\u0434\u0430\u043b\u0438 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u043e \u0438\u043c\u0435\u043d\u0438, \u0434\u043e\u043b\u0436\u043d\u043e\u0441\u0442\u0438 \u0438 \u043d\u0430\u0432\u044b\u043a\u0430\u043c. \u041e\u0434\u043d\u0430\u043a\u043e, \u0435\u0441\u043b\u0438 \u043a\u0430\u0436\u0434\u044b\u0439 \u0444\u0438\u043b\u044c\u0442\u0440 \u043d\u0443\u0436\u043d\u043e \u0432\u0440\u0443\u0447\u043d\u0443\u044e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c \u0432 \u0441\u0435\u0440\u0432\u0438\u0441, \u043a\u043e\u0434 \u043e\u0441\u0442\u0430\u0435\u0442\u0441\u044f \u0433\u0440\u043e\u043c\u043e\u0437\u0434\u043a\u0438\u043c. \u0427\u0442\u043e\u0431\u044b \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0431\u043e\u043b\u0435\u0435 \u0433\u0438\u0431\u043a\u043e\u0439, \u043c\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u043f\u043e\u0434\u0445\u043e\u0434 \u0441 SpecificationManager \u0438 SpecificationProvider. \u041e\u043d \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0442\u044c \u043d\u043e\u0432\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 \u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0435.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u0430 \u043a\u043e\u043d\u0446\u0435\u043f\u0446\u0438\u044f \u0431\u0430\u0437\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043d\u0430 \u043f\u0430\u0442\u0442\u0435\u0440\u043d\u0435 &#171;\u0424\u0430\u0431\u0440\u0438\u0447\u043d\u044b\u0439 \u043c\u0435\u0442\u043e\u0434&#187;, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0443\u043f\u0440\u043e\u0449\u0430\u0435\u0442 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c\u0438 \u0438 \u043f\u0440\u0438\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0430 Open\/Closed (\u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0433\u043e \u043a\u043e\u0434\u0430). \u0412 \u044d\u0442\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u043c\u044b \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c, \u043a\u0430\u043a \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 SpecificationManager \u0438 SpecificationProvider, \u043a\u0430\u043a \u043e\u043d\u0438 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0442 \u0441 \u0441\u0435\u0440\u0432\u0438\u0441\u043e\u043c \u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u043c, \u0438 \u043a\u0430\u043a \u043b\u0435\u0433\u043a\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c \u043d\u043e\u0432\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b \u0431\u0435\u0437 \u043b\u0438\u0448\u043d\u0438\u0445 \u043f\u0440\u0430\u0432\u043e\u043a \u0432 \u043a\u043e\u0434\u0435.<\/p>\n\n\n    <div class=\"adv_block\">\r\n        <div class=\"top_text\">\u0425\u043e\u0442\u0438\u0442\u0435 \u043e\u0441\u0432\u043e\u0438\u0442\u044c \u043f\u0440\u043e\u0444\u0435\u0441\u0441\u0438\u044e Java Developer? \u041f\u0440\u0438\u0441\u043e\u0435\u0434\u0438\u043d\u044f\u0439\u0442\u0435\u0441\u044c \u043a \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0435 <a href=\"https:\/\/foxminded.ua\/ru\/strong-junior-java\/\">&#171;\u041e\u0442 0 \u0434\u043e Strong Java Junior \u0437\u0430 12 \u043c\u0435\u0441\u044f\u0446\u0435\u0432&#187;<\/a>. \u0412\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435\u0441\u044c \u0432\u044b\u0433\u043e\u0434\u043d\u044b\u043c \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u0435\u043c \u043e\u0442 FoxmindEd!<\/div>\r\n        \r\n        <a href=\"https:\/\/foxminded.ua\/ru\/strong-junior-java\/\" class=\"adv_block_btn btn btn-primary\">\r\n            \u0417\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c\u0441\u044f        <\/a>\r\n    <\/div>\r\n\n\n\n<h2 class=\"wp-block-heading\">\u0424\u0430\u0431\u0440\u0438\u043a\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0439 \u0432 JPA: \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u043c\u0438<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0427\u0442\u043e\u0431\u044b \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0431\u043e\u043b\u0435\u0435 \u0433\u0438\u0431\u043a\u043e\u0439 \u0438 \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u043e\u0439, \u043c\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u043f\u043e\u0434\u0445\u043e\u0434, \u043f\u0440\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u0443\u044e\u0442\u0441\u044f \u0438 \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0442\u0441\u044f \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041a\u0430\u043a \u0432\u044b \u0437\u0430\u043c\u0435\u0442\u0438\u043b\u0438, \u0432\u0441\u0435 \u043d\u0430\u0448\u0438 \u043a\u043b\u0430\u0441\u0441\u044b \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0439 \u0438\u043c\u043f\u043b\u0435\u043c\u0435\u043d\u0442\u0438\u0440\u0443\u044e\u0442 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 SpecificationProvider. \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0442\u0430\u043a\u043e\u0435 \u0438 \u0437\u0430\u0447\u0435\u043c \u043e\u043d \u043d\u0443\u0436\u0435\u043d?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SpecificationProvider &#8212; \u044d\u0442\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u0436\u0434\u043e\u0439 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0435\u0439. \u041e\u043d \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u0430\u043c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u041f\u043e\u043b\u0443\u0447\u0430\u0442\u044c \u043e\u0431\u044a\u0435\u043a\u0442 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0436\u043d\u043e \u043f\u0435\u0440\u0435\u0434\u0430\u0442\u044c \u0432 JpaSpecificationExecutor.<\/li>\n\n\n\n<li>\u0417\u0430\u0434\u0430\u0432\u0430\u0442\u044c \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u043a\u043b\u044e\u0447 \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u044c \u043d\u0443\u0436\u043d\u0443\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u043f\u043e \u0438\u043c\u0435\u043d\u0438 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"public interface SpecificationProvider&lt;T&gt; {\n\n\u00a0\u00a0\u00a0Specification&lt;T&gt; getSpecification(List&lt;String&gt; params);\n\n\u00a0\u00a0\u00a0String getFilterKey();\n\n}\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">public <\/span><span style=\"color: #FF79C6\">interface<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD; font-style: italic\">SpecificationProvider<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">T<\/span><span style=\"color: #F8F8F2\">&gt; {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0Specification<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">T<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #50FA7B\">getSpecification<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #FFB86C; font-style: italic\">List<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">&gt; <\/span><span style=\"color: #FFB86C; font-style: italic\">params<\/span><span style=\"color: #F8F8F2\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0String <\/span><span style=\"color: #50FA7B\">getFilterKey<\/span><span style=\"color: #F8F8F2\">();<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0411\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u044d\u0442\u043e\u043c\u0443 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0443 \u043a\u0430\u0436\u0434\u044b\u0439 \u043d\u043e\u0432\u044b\u0439 \u0444\u0438\u043b\u044c\u0442\u0440 \u0441\u043e\u0437\u0434\u0430\u0435\u0442\u0441\u044f \u0432 \u0432\u0438\u0434\u0435 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u043b\u0430\u0441\u0441\u0430 (NameSpecificationProvider, PositionSpecificationProvider \u0438 \u0442. \u0434.) \u0431\u0435\u0437 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438 \u0438\u0437\u043c\u0435\u043d\u044f\u0442\u044c \u043a\u043e\u0434 \u0441\u0435\u0440\u0432\u0438\u0441\u0430.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UserSpecificationManager &#8212; \u044d\u0442\u043e \u0444\u0430\u0431\u0440\u0438\u043a\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u043a\u0430\u0440\u0442\u0443 (Map&lt;String, SpecificationProvider&lt;User>>), \u0433\u0434\u0435 \u043a\u0430\u0436\u0434\u043e\u043c\u0443 \u043a\u043b\u044e\u0447\u0443 \u0444\u0438\u043b\u044c\u0442\u0440\u0430 (name, position, skills) \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0430\u044f \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f Spring \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0430\u0445\u043e\u0434\u0438\u0442 \u0432\u0441\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 (SpecificationProvider), \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0435\u0441\u0442\u044c \u0432 \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u0435 (@Component), \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442 \u0438\u0445 \u0432 Map&lt;String, SpecificationProvider&lt;User>>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u043e\u0442 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f UserSpecificationManager:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"@Component\n\npublic class UserSpecificationManager implements SpecificationManager&lt;User&gt; {\n\n\u00a0\u00a0\u00a0private final Map&lt;String, SpecificationProvider&lt;User&gt;&gt; providersMap;\n\n\u00a0\u00a0\u00a0public UserSpecificationManager(List&lt;SpecificationProvider&lt;User&gt;&gt; employeeSpecifications) {\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0this.providersMap = employeeSpecifications.stream()\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0.collect(Collectors.toMap(SpecificationProvider::getFilterKey, identity()));\n\n\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0@Override\n\n\u00a0\u00a0\u00a0public Specification&lt;User&gt; get(String filterKey, List&lt;String&gt; params) {\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return providersMap.get(filterKey).getSpecification(params);\n\n\u00a0\u00a0\u00a0}\n\n}\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">@<\/span><span style=\"color: #50FA7B; font-style: italic\">Component<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">public <\/span><span style=\"color: #FF79C6\">class<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD\">UserSpecificationManager<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">implements<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD; font-style: italic\">SpecificationManager<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">User<\/span><span style=\"color: #F8F8F2\">&gt; {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> final Map<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">String, SpecificationProvider<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">User<\/span><span style=\"color: #FF79C6\">&gt;&gt;<\/span><span style=\"color: #F8F8F2\"> providersMap;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">public<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #50FA7B\">UserSpecificationManager<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #FFB86C; font-style: italic\">List<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">SpecificationProvider<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">User<\/span><span style=\"color: #F8F8F2\">&gt;&gt; <\/span><span style=\"color: #FFB86C; font-style: italic\">employeeSpecifications<\/span><span style=\"color: #F8F8F2\">) {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"color: #BD93F9; font-style: italic\">this<\/span><span style=\"color: #F8F8F2\">.providersMap <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> employeeSpecifications.<\/span><span style=\"color: #50FA7B\">stream<\/span><span style=\"color: #F8F8F2\">()<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0.<\/span><span style=\"color: #50FA7B\">collect<\/span><span style=\"color: #F8F8F2\">(Collectors.<\/span><span style=\"color: #50FA7B\">toMap<\/span><span style=\"color: #F8F8F2\">(SpecificationProvider::getFilterKey, <\/span><span style=\"color: #50FA7B\">identity<\/span><span style=\"color: #F8F8F2\">()));<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0@<\/span><span style=\"color: #50FA7B; font-style: italic\">Override<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">public<\/span><span style=\"color: #F8F8F2\"> Specification<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">User<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FFB86C; font-style: italic\">filterKey<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #FFB86C; font-style: italic\">List<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">&gt; <\/span><span style=\"color: #FFB86C; font-style: italic\">params<\/span><span style=\"color: #F8F8F2\">) {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">return<\/span><span style=\"color: #F8F8F2\"> providersMap.<\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(filterKey).<\/span><span style=\"color: #50FA7B\">getSpecification<\/span><span style=\"color: #F8F8F2\">(params);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u0427\u0442\u043e \u0437\u0434\u0435\u0441\u044c \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0421\u043e\u0437\u0434\u0430\u0435\u0442\u0441\u044f \u043a\u0430\u0440\u0442\u0430 (providersMap), \u0433\u0434\u0435 \u043a\u043b\u044e\u0447 &#8212; \u044d\u0442\u043e \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u0430 (filterKey), \u0430 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 &#8212; \u043e\u0431\u044a\u0435\u043a\u0442 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0439 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"{\n\n\u00a0\u00a0&quot;name&quot;: NameSpecificationProvider,\n\n\u00a0\u00a0&quot;position&quot;: PositionSpecificationProvider,\n\n\u00a0\u00a0&quot;skills&quot;: SkillSpecificationProvider\n\n}\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">{<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">name<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">: NameSpecificationProvider,<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">position<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">: PositionSpecificationProvider,<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">skills<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">: SkillSpecificationProvider<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0422\u0435\u043f\u0435\u0440\u044c, \u0435\u0441\u043b\u0438 \u043c\u044b \u043f\u0435\u0440\u0435\u0434\u0430\u0434\u0438\u043c &#171;name&#187;, UserSpecificationManager \u043d\u0430\u0439\u0434\u0435\u0442 NameSpecificationProvider \u0438 \u0432\u0435\u0440\u043d\u0435\u0442 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e.<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>Spring \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u0442 \u0432\u0441\u0435 SpecificationProvider \u0432 \u0441\u043f\u0438\u0441\u043e\u043a \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442 \u0438\u0445 \u0432 providersMap. \u042d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u043d\u0430\u043c \u043d\u0435 \u043d\u0443\u0436\u043d\u043e \u0432\u0440\u0443\u0447\u043d\u0443\u044e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c \u043d\u043e\u0432\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 &#8212; \u043e\u043d\u0438 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u044e\u0442\u0441\u044f \u043a \u0441\u0438\u0441\u0442\u0435\u043c\u0435.Spring \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u0442 \u0432\u0441\u0435 SpecificationProvider&lt;User> \u0432 \u0441\u043f\u0438\u0441\u043e\u043a \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442 \u0438\u0445 \u0432 providersMap. \u042d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u043d\u0430\u043c \u043d\u0435 \u043d\u0443\u0436\u043d\u043e \u0432\u0440\u0443\u0447\u043d\u0443\u044e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c \u043d\u043e\u0432\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 &#8212; \u043e\u043d\u0438 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u044e\u0442\u0441\u044f \u043a \u0441\u0438\u0441\u0442\u0435\u043c\u0435.<\/li>\n\n\n\n<li>\u041c\u0435\u0442\u043e\u0434 get() \u0438\u0449\u0435\u0442 \u043d\u0443\u0436\u043d\u044b\u0439 SpecificationProvider \u043f\u043e \u043a\u043b\u044e\u0447\u0443 (filterKey) \u0438 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e. \u0415\u0441\u043b\u0438 \u0442\u0430\u043a\u043e\u0433\u043e \u043a\u043b\u044e\u0447\u0430 \u043d\u0435\u0442, \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f Specification.where(null), \u0447\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u0430.<\/li>\n<\/ol>\n\n\n    <div class=\"adv_courses_links\">\r\n        <div class=\"adv_courses_wrap\">\r\n            <div class=\"top_block\">\r\n                <span>FoxmindEd<\/span> &#8212; \u044d\u0442\u043e \u0443\u0447\u0435\u0431\u043d\u044b\u0439 \u0446\u0435\u043d\u0442\u0440 \u0441 \u0431\u043e\u043b\u044c\u0448\u0438\u043c \u0432\u044b\u0431\u043e\u0440\u043e\u043c \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u043a\u0443\u0440\u0441\u043e\u0432 \u0434\u043b\u044f \u043d\u043e\u0432\u0438\u0447\u043a\u043e\u0432 \u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0441\u0442\u043e\u0432 \u0441 \u043e\u043f\u044b\u0442\u043e\u043c!            <\/div>\r\n            <div class=\"adv_courses_link\">\r\n                <span>\u041d\u0430\u0447\u0438\u043d\u0430\u0435\u0442\u0435 \u0441\u0432\u043e\u0439 \u043f\u0443\u0442\u044c \u0432 I\u0422?<\/span> \u041f\u043e\u043f\u0440\u043e\u0431\u0443\u0439\u0442\u0435 <a href=\"https:\/\/foxminded.ua\/ru\/start-course-2\/\">\u0441\u0442\u0430\u0440\u0442\u043e\u0432\u044b\u0435 IT-\u043a\u0443\u0440\u0441\u044b<\/a>            <\/div>\r\n            <div class=\"adv_courses_link\">\r\n                <span>\u0418\u043c\u0435\u0435\u0442\u0435 \u0431\u0430\u0437\u043e\u0432\u044b\u0435 \u043d\u0430\u0432\u044b\u043a\u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f?<\/span> \u0422\u043e\u0433\u0434\u0430 \u0432\u0430\u043c \u043d\u0430 <a href=\"https:\/\/foxminded.ua\/ru\/junior-course\/\">\u043a\u0443\u0440\u0441\u044b \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u041c\u0435\u043d\u0442\u043e\u0440\u0438\u043d\u0433<\/a>            <\/div>\r\n            <div class=\"adv_courses_link\">\r\n                <span>\u0425\u043e\u0442\u0438\u0442\u0435 \u0443\u0433\u043b\u0443\u0431\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u0437\u043d\u0430\u043d\u0438\u044f \u0432 I\u0422?<\/span> \u0423 \u043d\u0430\u0441 \u0435\u0441\u0442\u044c <a href=\"https:\/\/foxminded.ua\/ru\/advanced-courses\/\">\u043a\u0443\u0440\u0441\u044b \u0434\u043b\u044f middle\/senior<\/a>            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n\n\n\n<h3 class=\"wp-block-heading\">\u041f\u043e\u0447\u0435\u043c\u0443 \u044d\u0442\u043e \u0443\u0434\u043e\u0431\u043d\u043e?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0413\u0438\u0431\u043a\u043e\u0441\u0442\u044c &#8212; \u043b\u044e\u0431\u043e\u0439 \u0444\u0438\u043b\u044c\u0442\u0440 \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0438\u043b\u0438 \u0443\u0431\u0440\u0430\u0442\u044c \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 \u0438\u043b\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438.<\/li>\n\n\n\n<li>\u041f\u0440\u043e\u0441\u0442\u043e\u0442\u0430 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f &#8212; \u0435\u0441\u043b\u0438 \u043d\u0443\u0436\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u043d\u043e\u0432\u044b\u0439 \u043a\u0440\u0438\u0442\u0435\u0440\u0438\u0439 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u044e \u043f\u043e \u0432\u043e\u0437\u0440\u0430\u0441\u0442\u0443), \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043f\u0440\u043e\u0441\u0442\u043e \u0441\u043e\u0437\u0434\u0430\u0442\u044c AgeSpecificationProvider, \u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0430\u0447\u043d\u0435\u0442 \u0435\u0433\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c.<\/li>\n\n\n\n<li>\u041a\u043e\u0434 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 \u043e\u0441\u0442\u0430\u0435\u0442\u0441\u044f \u0447\u0438\u0441\u0442\u044b\u043c, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043b\u043e\u0433\u0438\u043a\u0430 \u0432\u044b\u0431\u043e\u0440\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0439 \u0432\u044b\u043d\u0435\u0441\u0435\u043d\u0430 \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u043a\u043b\u0430\u0441\u0441.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u0427\u0442\u043e\u0431\u044b \u0441\u0434\u0435\u043b\u0430\u0442\u044c UserSpecificationManager \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0430\u043b\u044c\u043d\u044b\u043c \u0438 \u0447\u0435\u0442\u043a\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c \u0435\u0433\u043e \u0440\u043e\u043b\u044c, \u043c\u044b \u0432\u044b\u043d\u0435\u0441\u043b\u0438 \u043b\u043e\u0433\u0438\u043a\u0443 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c\u0438 \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 SpecificationManager.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e\u0442 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043d\u0430\u043c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0417\u0430\u0434\u0430\u0442\u044c \u0435\u0434\u0438\u043d\u0443\u044e \u0442\u043e\u0447\u043a\u0443 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c.<\/li>\n\n\n\n<li>\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043e\u0431\u043e\u0431\u0449\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0434\u0445\u043e\u0434 (T \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u043b\u044e\u0431\u043e\u0439 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c\u044e, \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e User).<\/li>\n\n\n\n<li>\u0427\u0435\u0442\u043a\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c, \u0447\u0442\u043e \u043b\u044e\u0431\u043e\u0439 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u043a\u043b\u0430\u0441\u0441 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c\u0438 \u0434\u043e\u043b\u0436\u0435\u043d \u0438\u043c\u0435\u0442\u044c \u043c\u0435\u0442\u043e\u0434 get().<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">SpecificationManager \u043e\u0442\u0432\u0435\u0447\u0430\u0435\u0442 \u0437\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c\u0438. \u0415\u0433\u043e \u043e\u0441\u043d\u043e\u0432\u043d\u0430\u044f \u0437\u0430\u0434\u0430\u0447\u0430 &#8212; \u0438\u0441\u043a\u0430\u0442\u044c \u0438 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0442\u044c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u043f\u043e \u0435\u0435 \u043a\u043b\u044e\u0447\u0443 (filterKey).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0418\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 SpecificationManager \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u0442\u0430\u043a:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"public interface SpecificationManager&lt;T&gt; {\n\n\u00a0\u00a0\u00a0Specification&lt;T&gt; get(String criterion, List&lt;String&gt; params);\n\n}\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">public <\/span><span style=\"color: #FF79C6\">interface<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD; font-style: italic\">SpecificationManager<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">T<\/span><span style=\"color: #F8F8F2\">&gt; {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0Specification<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">T<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FFB86C; font-style: italic\">criterion<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #FFB86C; font-style: italic\">List<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">&gt; <\/span><span style=\"color: #FFB86C; font-style: italic\">params<\/span><span style=\"color: #F8F8F2\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u041a\u0430\u043a \u044d\u0442\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432\u043c\u0435\u0441\u0442\u0435?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0412\u0441\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 (SpecificationProvider&lt;User>) \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0441\u043e\u0431\u0438\u0440\u0430\u044e\u0442\u0441\u044f \u0432 UserSpecificationManager.<\/li>\n\n\n\n<li>\u041a\u043e\u0433\u0434\u0430 \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u0442 \u0437\u0430\u043f\u0440\u043e\u0441 \u0441 \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u043c\u0438, UserServiceImpl \u043e\u0431\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f \u043a UserSpecificationManager, \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u044f filterKey \u0438 params.<\/li>\n\n\n\n<li>UserSpecificationManager \u0438\u0449\u0435\u0442 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0432 \u0441\u0432\u043e\u0435\u0439 \u043a\u0430\u0440\u0442\u0435 \u0438 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 \u0435\u0435.<\/li>\n\n\n\n<li>\u042d\u0442\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043a \u043e\u0431\u0449\u0435\u043c\u0443 \u0437\u0430\u043f\u0440\u043e\u0441\u0443 (Specification.and()).<\/li>\n<\/ol>\n\n\n    <div class=\"adv_youtube\">\r\n        <div class=\"adv_youtube_block g-bg-white d-flex align-items-center justify-content-center\">\r\n            <img decoding=\"async\" src=\"https:\/\/esvt4mphmap.exactdn.com\/wp-content\/themes\/foxminded\/icon\/general\/adv_logo.png?strip=all&quality=92&webp=92&avif=90&sharp=1&w=640\">\r\n            <div class=\"bubble_text\">\r\n                <span>\u041f\u043e\u0434\u043f\u0438\u0448\u0438\u0442\u0435\u0441\u044c \u043d\u0430 \u043d\u0430\u0448 \u042e\u0442\u0443\u0431-\u043a\u0430\u043d\u0430\u043b!<\/span> \u041f\u043e\u043b\u0435\u0437\u043d\u044b\u0435 \u0432\u0438\u0434\u0435\u043e \u0434\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0441\u0442\u043e\u0432 \u0443\u0436\u0435 \u0436\u0434\u0443\u0442 \u0432\u0430\u0441!                <a class=\"btn btn-primary btn-primary-icon\" href=\"https:\/\/www.youtube.com\/c\/SergeyNemchinskiy\">\r\n                    <img decoding=\"async\" src=\"https:\/\/esvt4mphmap.exactdn.com\/wp-content\/themes\/foxminded\/icon\/general\/youtube_btn_icon.svg\">\r\n                    YouTube   \r\n                <\/a>\r\n            <\/div>\r\n        <\/div>\r\n        <div class=\"adv_mentoring_block g-bg-white d-flex align-items-center justify-content-center\">\r\n            <img decoding=\"async\" src=\"https:\/\/esvt4mphmap.exactdn.com\/wp-content\/themes\/foxminded\/icon\/general\/adv_logo.png?strip=all&quality=92&webp=92&avif=90&sharp=1&w=640\">\r\n            <div class=\"bubble_text\">\r\n                <span>\u0412\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u0441\u0432\u043e\u0439 \u043a\u0443\u0440\u0441!<\/span> \u041f\u0443\u0442\u044c \u043a \u043a\u0430\u0440\u044c\u0435\u0440\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0441\u0442\u0430 \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442\u0441\u044f \u0437\u0434\u0435\u0441\u044c!                <a class=\"btn btn-primary\" href=\"https:\/\/foxminded.ua\/ru\/junior-course\/\">\r\n                    \u041f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c                    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewBox=\"0 0 20 20\" fill=\"none\">\r\n                    <path d=\"M11.6927 5.8584L11.6927 9.19173L4.25937 9.19173L4.23437 10.8667L11.6927 10.8667L11.6927 14.1917L15.8594 10.0251L11.6927 5.8584Z\" fill=\"white\"\/>\r\n                    <\/svg>\r\n                <\/a>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n\n\n\n<h2 class=\"wp-block-heading\">\u0420\u043e\u0431\u043e\u0442 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f UserSpecificationManager \u0432 UserServiceImpl<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 \u043c\u044b \u043f\u0440\u043e\u0441\u0442\u043e \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u043c \u043f\u043e \u0432\u0441\u0435\u043c \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u043c \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 (filters) \u0438 \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u043c \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0447\u0435\u0440\u0435\u0437 UserSpecificationManager.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"@Service\n\n@AllArgsConstructor\n\npublic class UserServiceImpl implements UserService {\n\n\u00a0\u00a0\u00a0private final UserSpecificationManager userSpecificationManager;\n\n\u00a0\u00a0\u00a0private final UserRepository userRepository;\n\n\u00a0\u00a0\u00a0private static final String SORT_ORDER = &quot;sortOrder&quot;;\n\n\u00a0\u00a0\u00a0private static final String PAGE = &quot;page&quot;;\n\n\u00a0\u00a0\u00a0private static final String SIZE = &quot;size&quot;;\n\n\u00a0\u00a0\u00a0private static final String SORT_BY = &quot;sortBy&quot;;\n\n\u00a0\u00a0\u00a0private static final String DEFAULT_SORT_PARAMETER = &quot;lastName&quot;;\n\n\u00a0\u00a0\u00a0private static final String DEFAULT_PAGE_NUMBER = &quot;0&quot;;\n\n\u00a0\u00a0\u00a0private static final String DEFAULT_PAGE_SIZE = &quot;5&quot;;\n\n\u00a0\u00a0\u00a0private static final String DEFAULT_SORT_ORDER = &quot;asc&quot;;\n\n\u00a0\u00a0\u00a0\/*\n\n\u00a0\u00a0\u00a0\u00a0* This is a learning project to demonstrate the use of JPA Specifications.\n\n\u00a0\u00a0\u00a0\u00a0* We are not validating input parameters, handling errors, or using DTOs for response transformation.\n\n\u00a0\u00a0\u00a0\u00a0* In a real-world application, proper validation, error handling, and DTO mapping should be implemented.\n\n\u00a0\u00a0\u00a0\u00a0*\/\n\n\u00a0\u00a0\u00a0@Override\n\n\u00a0\u00a0\u00a0public Page&lt;User&gt; filterUsers(Map&lt;String, String&gt; request) {\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Specification&lt;User&gt; specification = Specification.where(null);\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Pageable pageable = getPageable(request);\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for (Map.Entry&lt;String, String&gt; entry : request.entrySet()) {\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Specification&lt;User&gt; sp = userSpecificationManager.get\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(entry.getKey(), List.of(entry.getValue().split(&quot;,&quot;)));\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0specification = specification.and(sp);\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return userRepository.findAll(specification, pageable);\n\n\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0private Pageable getPageable(Map&lt;String, String&gt; request) {\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sort.Direction orderingDirection = Sort.Direction.fromString(request.get(SORT_ORDER) == null ?\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0DEFAULT_SORT_ORDER : request.remove(SORT_ORDER));\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sort sortByRequest = Sort.by(orderingDirection, request.get(SORT_BY) == null ?\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0DEFAULT_SORT_PARAMETER : request.remove(SORT_BY));\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return PageRequest.of(Integer.parseInt(request.get(PAGE) == null ?\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0DEFAULT_PAGE_NUMBER : request.remove(PAGE)),\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Integer.parseInt(request.get(SIZE) == null ? DEFAULT_PAGE_SIZE : request.remove(SIZE)), sortByRequest);\n\n\u00a0\u00a0\u00a0}\n\n}\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">@<\/span><span style=\"color: #50FA7B; font-style: italic\">Service<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">@<\/span><span style=\"color: #50FA7B; font-style: italic\">AllArgsConstructor<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">public <\/span><span style=\"color: #FF79C6\">class<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD\">UserServiceImpl<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">implements<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #8BE9FD; font-style: italic\">UserService<\/span><span style=\"color: #F8F8F2\"> {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> final UserSpecificationManager userSpecificationManager;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> final UserRepository userRepository;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String SORT_ORDER <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">sortOrder<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String PAGE <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">page<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String SIZE <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">size<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String SORT_BY <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">sortBy<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String DEFAULT_SORT_PARAMETER <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">lastName<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String DEFAULT_PAGE_NUMBER <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">0<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String DEFAULT_PAGE_SIZE <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">5<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">static<\/span><span style=\"color: #F8F8F2\"> final String DEFAULT_SORT_ORDER <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">asc<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #6272A4\">\/*<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">\u00a0\u00a0\u00a0\u00a0* This is a learning project to demonstrate the use of JPA Specifications.<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">\u00a0\u00a0\u00a0\u00a0* We are not validating input parameters, handling errors, or using DTOs for response transformation.<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">\u00a0\u00a0\u00a0\u00a0* In a real-world application, proper validation, error handling, and DTO mapping should be implemented.<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6272A4\">\u00a0\u00a0\u00a0\u00a0*\/<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0@<\/span><span style=\"color: #50FA7B; font-style: italic\">Override<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">public<\/span><span style=\"color: #F8F8F2\"> Page<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">User<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #50FA7B\">filterUsers<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #FFB86C; font-style: italic\">Map<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">&gt; <\/span><span style=\"color: #FFB86C; font-style: italic\">request<\/span><span style=\"color: #F8F8F2\">) {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Specification<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">User<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> specification <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> Specification.<\/span><span style=\"color: #50FA7B\">where<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Pageable pageable <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #50FA7B\">getPageable<\/span><span style=\"color: #F8F8F2\">(request);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">for<\/span><span style=\"color: #F8F8F2\"> (Map.Entry<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">String, String<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> entry : request.<\/span><span style=\"color: #50FA7B\">entrySet<\/span><span style=\"color: #F8F8F2\">()) {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Specification<\/span><span style=\"color: #FF79C6\">&lt;<\/span><span style=\"color: #F8F8F2\">User<\/span><span style=\"color: #FF79C6\">&gt;<\/span><span style=\"color: #F8F8F2\"> sp <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> userSpecificationManager.get<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(entry.<\/span><span style=\"color: #50FA7B\">getKey<\/span><span style=\"color: #F8F8F2\">(), List.<\/span><span style=\"color: #50FA7B\">of<\/span><span style=\"color: #F8F8F2\">(entry.<\/span><span style=\"color: #50FA7B\">getValue<\/span><span style=\"color: #F8F8F2\">().<\/span><span style=\"color: #50FA7B\">split<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">,<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">)));<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0specification <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> specification.<\/span><span style=\"color: #50FA7B\">and<\/span><span style=\"color: #F8F8F2\">(sp);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">return<\/span><span style=\"color: #F8F8F2\"> userRepository.<\/span><span style=\"color: #50FA7B\">findAll<\/span><span style=\"color: #F8F8F2\">(specification, pageable);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">private<\/span><span style=\"color: #F8F8F2\"> Pageable <\/span><span style=\"color: #50FA7B\">getPageable<\/span><span style=\"color: #F8F8F2\">(<\/span><span style=\"color: #FFB86C; font-style: italic\">Map<\/span><span style=\"color: #F8F8F2\">&lt;<\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">, <\/span><span style=\"color: #FFB86C; font-style: italic\">String<\/span><span style=\"color: #F8F8F2\">&gt; <\/span><span style=\"color: #FFB86C; font-style: italic\">request<\/span><span style=\"color: #F8F8F2\">) {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sort.Direction orderingDirection <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> Sort.Direction.<\/span><span style=\"color: #50FA7B\">fromString<\/span><span style=\"color: #F8F8F2\">(request.<\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(SORT_ORDER) <\/span><span style=\"color: #FF79C6\">==<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">?<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0DEFAULT_SORT_ORDER <\/span><span style=\"color: #FF79C6\">:<\/span><span style=\"color: #F8F8F2\"> request.<\/span><span style=\"color: #50FA7B\">remove<\/span><span style=\"color: #F8F8F2\">(SORT_ORDER));<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sort sortByRequest <\/span><span style=\"color: #FF79C6\">=<\/span><span style=\"color: #F8F8F2\"> Sort.<\/span><span style=\"color: #50FA7B\">by<\/span><span style=\"color: #F8F8F2\">(orderingDirection, request.<\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(SORT_BY) <\/span><span style=\"color: #FF79C6\">==<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">?<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0DEFAULT_SORT_PARAMETER <\/span><span style=\"color: #FF79C6\">:<\/span><span style=\"color: #F8F8F2\"> request.<\/span><span style=\"color: #50FA7B\">remove<\/span><span style=\"color: #F8F8F2\">(SORT_BY));<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"color: #FF79C6\">return<\/span><span style=\"color: #F8F8F2\"> PageRequest.<\/span><span style=\"color: #50FA7B\">of<\/span><span style=\"color: #F8F8F2\">(Integer.<\/span><span style=\"color: #50FA7B\">parseInt<\/span><span style=\"color: #F8F8F2\">(request.<\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(PAGE) <\/span><span style=\"color: #FF79C6\">==<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">?<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0DEFAULT_PAGE_NUMBER <\/span><span style=\"color: #FF79C6\">:<\/span><span style=\"color: #F8F8F2\"> request.<\/span><span style=\"color: #50FA7B\">remove<\/span><span style=\"color: #F8F8F2\">(PAGE)),<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Integer.<\/span><span style=\"color: #50FA7B\">parseInt<\/span><span style=\"color: #F8F8F2\">(request.<\/span><span style=\"color: #50FA7B\">get<\/span><span style=\"color: #F8F8F2\">(SIZE) <\/span><span style=\"color: #FF79C6\">==<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #BD93F9\">null<\/span><span style=\"color: #F8F8F2\"> <\/span><span style=\"color: #FF79C6\">?<\/span><span style=\"color: #F8F8F2\"> DEFAULT_PAGE_SIZE <\/span><span style=\"color: #FF79C6\">:<\/span><span style=\"color: #F8F8F2\"> request.<\/span><span style=\"color: #50FA7B\">remove<\/span><span style=\"color: #F8F8F2\">(SIZE)), sortByRequest);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0\u00a0}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u0427\u0442\u043e \u0437\u0434\u0435\u0441\u044c \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0418\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u0435\u043c \u043f\u0443\u0441\u0442\u0443\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e (Specification.where(null)).<\/li>\n\n\n\n<li>\u041f\u0440\u043e\u0445\u043e\u0434\u0438\u043c \u043f\u043e \u0432\u0441\u0435\u043c \u0432\u0445\u043e\u0434\u043d\u044b\u043c \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u043c (filters):<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0435\u0441\u043b\u0438 \u0437\u0430\u043f\u0440\u043e\u0441 GET \/users?name=Jonson&amp;position=1,2, \u0442\u043e request.entrySet() \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"{\n\n\u00a0\u00a0&quot;name&quot;: &quot;Jonson&quot;,\n\n\u00a0\u00a0&quot;position&quot;: &quot;1,2&quot;\n\n}\" style=\"color:#F8F8F2;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dracula\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #F8F8F2\">{<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">name<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">: <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">Jonson<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">,<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">\u00a0\u00a0<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">position<\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F8F8F2\">: <\/span><span style=\"color: #E9F284\">&quot;<\/span><span style=\"color: #F1FA8C\">1,2<\/span><span style=\"color: #E9F284\">&quot;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F8F8F2\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u0414\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430 \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0447\u0435\u0440\u0435\u0437 UserSpecificationManager.get().\n<ul class=\"wp-block-list\">\n<li>name -> NameSpecificationProvider.getSpecification(&#171;Jonson&#187;)<\/li>\n\n\n\n<li>position -&gt; PositionSpecificationProvider.getSpecification([&#171;1&#187;, &#171;2&#187;])<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u041e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u0435\u043c \u0432\u0441\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0447\u0435\u0440\u0435\u0437 .and(sp), \u0442\u043e \u0435\u0441\u0442\u044c \u0432\u0441\u0435 \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0442\u0441\u044f \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e (\u043b\u043e\u0433\u0438\u043a\u0430 AND).<\/li>\n\n\n\n<li>\u0412\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c \u043f\u043e\u0438\u0441\u043a userRepository.findAll(specification, pageable).<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u0412\u044b\u0432\u043e\u0434\u044b<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SpecificationProvider &#8212; \u044d\u0442\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u044b\u0432\u0430\u0442\u044c \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430.<\/li>\n\n\n\n<li>SpecificationManager &#8212; \u044d\u0442\u043e \u0444\u0430\u0431\u0440\u0438\u043a\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c\u0438 \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u044c \u0438\u0445 \u043f\u043e \u043a\u043b\u044e\u0447\u0443 (filterKey).<\/li>\n\n\n\n<li>\u0411\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u044d\u0442\u043e\u043c\u0443 \u043f\u043e\u0434\u0445\u043e\u0434\u0443 \u043d\u0430\u043c \u043d\u0435 \u043d\u0443\u0436\u043d\u043e \u043c\u0435\u043d\u044f\u0442\u044c \u043a\u043e\u0434 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 \u043f\u0440\u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u043d\u043e\u0432\u044b\u0445 \u0444\u0438\u043b\u044c\u0442\u0440\u043e\u0432.<\/li>\n\n\n\n<li>\u041b\u044e\u0431\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b \u043c\u043e\u0436\u043d\u043e \u043a\u043e\u043c\u0431\u0438\u043d\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432 \u043b\u044e\u0431\u043e\u043c \u043f\u043e\u0440\u044f\u0434\u043a\u0435 \u0438\u043b\u0438 \u0432\u043e\u043e\u0431\u0449\u0435 \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0438\u0445.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\u041d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c \u043b\u0438 \u043d\u043e\u0432\u0438\u0447\u043a\u0443 Java \u043e\u043f\u044b\u0442 \u0440\u0430\u0431\u043e\u0442\u044b \u0441\u043e Spring?\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/hUUTyD15WJI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u0412 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0435\u0439 \u0447\u0430\u0441\u0442\u0438 \u043c\u044b \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043b\u0438 Spring Data JPA Specifications \u0438 \u0441\u043e\u0437\u0434\u0430\u043b\u0438 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u043e \u0438\u043c\u0435\u043d\u0438, \u0434\u043e\u043b\u0436\u043d\u043e\u0441\u0442\u0438 \u0438 \u043d\u0430\u0432\u044b\u043a\u0430\u043c. \u041e\u0434\u043d\u0430\u043a\u043e, \u0435\u0441\u043b\u0438 \u043a\u0430\u0436\u0434\u044b\u0439 \u0444\u0438\u043b\u044c\u0442\u0440 \u043d\u0443\u0436\u043d\u043e \u0432\u0440\u0443\u0447\u043d\u0443\u044e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c \u0432 \u0441\u0435\u0440\u0432\u0438\u0441, \u043a\u043e\u0434 \u043e\u0441\u0442\u0430\u0435\u0442\u0441\u044f \u0433\u0440\u043e\u043c\u043e\u0437\u0434\u043a\u0438\u043c. \u0427\u0442\u043e\u0431\u044b \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0431\u043e\u043b\u0435\u0435 \u0433\u0438\u0431\u043a\u043e\u0439, \u043c\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u043f\u043e\u0434\u0445\u043e\u0434 \u0441 SpecificationManager \u0438 SpecificationProvider. \u041e\u043d \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0442\u044c \u043d\u043e\u0432\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-77452","post","type-post","status-publish","format-standard","hentry","category-learning"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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