{"id":11102,"date":"2022-09-26T03:37:39","date_gmt":"2022-09-25T22:07:39","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-why-the-mapping-xml-and-configuration-xml-has-to-be-outside-the-pojo-package\/"},"modified":"2022-09-26T03:37:39","modified_gmt":"2022-09-25T22:07:39","slug":"solved-why-the-mapping-xml-and-configuration-xml-has-to-be-outside-the-pojo-package","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-why-the-mapping-xml-and-configuration-xml-has-to-be-outside-the-pojo-package\/","title":{"rendered":"[Solved] Why the mapping.xml and configuration.xml has to be outside the pojo package?"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-36006946\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"36006946\" data-parentid=\"36002488\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<blockquote>\n<p>I have just started to learn the Hibernate and found this in various online sites : mapping.xml and config.xml has to be defined outside the pojo package?<\/p>\n<\/blockquote>\n<p>You can put <code>xml<\/code> configurations whenever you want. For an example<\/p>\n<pre><code>SessionFactory factory = new Configuration().configure().buildsessionFactory();\n<\/code><\/pre>\n<p>Configure a session factory from the default <code>hibernate.cfg.xml<\/code>. It is the same as<\/p>\n<pre><code>SessionFactory factory = new Configuration()\n    .configure(\"hibernate.cfg.xml\").buildsessionFactory();\n<\/code><\/pre>\n<p>So why <code>hibernate.cfg.xml<\/code> should be in the root of the source folder (or in the <code>resources<\/code> folder) in this situation?<\/p>\n<p>Hibernate tries to load <code>hibernate.cfg.xml<\/code> via class loader<\/p>\n<pre><code>    InputStream stream = classLoader.getResourceAsStream( \"hibernate.cfg.xml\" );\n<\/code><\/pre>\n<p>if you specify just a name without a path (<code>\"hibernate.cfg.xml\"<\/code>) a class loader will try to find a resource in the root of the compiled sources folder \u2014 <code>bin<\/code> or <code>build<\/code> folder, or the <code>classes<\/code> folder for <code>war<\/code>. The <code>resources<\/code> folder after build is copied (for an example, by Maven) in the root of the build or <code>classes<\/code> folder. <\/p>\n<p>if you specify<\/p>\n<pre><code>new Configuration()\n        .configure(\"\/some\/pojo\/hibernate.cfg.xml\").buildsessionFactory(); \n<\/code><\/pre>\n<p>A class loader will try to find a resource in the <code>some.pojo<\/code> package. In this situation Hibernate removes the leading <code>\/<\/code>, because of for a loading via a class loader the leading <code>\/<\/code> is incorrect. So you can use a code below too<\/p>\n<pre><code>new Configuration()\n        .configure(\"some\/pojo\/hibernate.cfg.xml\").buildsessionFactory();\n<\/code><\/pre>\n<p>The same rule for other paths to the <code>xml<\/code> resources. <\/p>\n<blockquote>\n<p>Also what&#8217;s the difference between JPA and Hibernate. I searched through web and According to me hibernate is just one of the implementation of JPA. Could u correct me.<\/p>\n<\/blockquote>\n<p>Yes, Hibernate is an implementation of JPA. But one thing more. If you use the <code>SessionFactory<\/code> you can think that you don&#8217;t use <code>JPA<\/code>. But in the same time you  use JPA annotations (<code>@OneToMany<\/code> for an example).  When you use <code>EntityManager<\/code> \u2014 you use <code>JPA<\/code> exactly. <\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Why the mapping.xml and configuration.xml has to be outside the pojo package? <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] I have just started to learn the Hibernate and found this in various online sites : mapping.xml and config.xml has to be defined outside the pojo package? You can put xml configurations whenever you want. For an example SessionFactory factory = new Configuration().configure().buildsessionFactory(); Configure a session factory from the default hibernate.cfg.xml. It is the &#8230; <a title=\"[Solved] Why the mapping.xml and configuration.xml has to be outside the pojo package?\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-why-the-mapping-xml-and-configuration-xml-has-to-be-outside-the-pojo-package\/\" aria-label=\"More on [Solved] Why the mapping.xml and configuration.xml has to be outside the pojo package?\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[625,323,1200],"class_list":["post-11102","post","type-post","status-publish","format-standard","hentry","category-solved","tag-hibernate","tag-java","tag-jpa"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Why the mapping.xml and configuration.xml has to be outside the pojo package? - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-why-the-mapping-xml-and-configuration-xml-has-to-be-outside-the-pojo-package\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Why the mapping.xml and configuration.xml has to be outside the pojo package? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] I have just started to learn the Hibernate and found this in various online sites : mapping.xml and config.xml has to be defined outside the pojo package? 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