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copied!<p><strike>Creating tables and entities dynamically is IMO not a good idea. Hibernate is not really made for that and generating entities is only a <strong>small part</strong> of the problem. You would have to add them to the configuration, rebuild a session factory, update the model. And what about subsequent restarts of the application?</strike> Not recommended, just forget this approach...</p> <p>Another option would be to use an <a href="http://en.wikipedia.org/wiki/Entity-attribute-value_model" rel="nofollow noreferrer">Entity-Attribute-Value (EAV)</a> model. This is something many CMS are doing. I've never implemented this with Hibernate but it's doable (and has already been done). Here are some resources:</p> <ul> <li><a href="https://forum.hibernate.org/viewtopic.php?t=928399" rel="nofollow noreferrer">Adding new persistable classes at runtime</a></li> <li><a href="http://lists.jboss.org/pipermail/hibernate-dev/2007-April/001831.html" rel="nofollow noreferrer">[hibernate-dev] dynamic entities</a> (has some sources attached)</li> </ul> <p>But to be honest, I wouldn't implement my own CMS but rather reuse an existing one. <a href="http://www.onehippo.com/" rel="nofollow noreferrer">One Hippo</a> seems to be a candidate.</p> <h3>See also</h3> <ul> <li><a href="http://sankuru.biz/fr/blog/8-joomla-configuration-issues/35-the-cck-buzz-content-creation-kit-and-the-eav-problem.html" rel="nofollow noreferrer">The CCK buzz (Content Creation Kit) and the EAV problem</a> </li> </ul> <h3>Related questions</h3> <ul> <li><a href="https://stackoverflow.com/questions/870808/entity-attribute-value-database-vs-strict-relational-model-ecommerce-question">Entity Attribute Value Database vs. strict Relational Model Ecommerce question</a></li> <li><a href="https://stackoverflow.com/questions/1310630/approach-to-generic-database-design">Approach to generic database design</a></li> <li><a href="https://stackoverflow.com/questions/1945062/how-do-you-build-extensible-data-model">How do you build extensible data model</a></li> <li><a href="https://stackoverflow.com/questions/2054508/i-am-looking-for-something-similar-to-the-drupal-cck-but-in-java-in-a-java-cms">I am looking for something similar to the drupal CCK, but in Java (in a Java CMS)?</a> </li> <li><a href="https://stackoverflow.com/questions/1205793/java-frameworks-that-support-entity-attribute-value-models">Java Frameworks that support Entity-Attribute-Value Models</a></li> <li><a href="https://stackoverflow.com/questions/2646035/implementing-eav-pattern-with-hibernate-for-user-settings-relationship">Implementing EAV pattern with Hibernate for User -> Settings relationship</a></li> </ul>

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