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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">This finally will be doable as of ORM 5.1 with the required changes implemented as part of <a href="https://hibernate.atlassian.net/browse/HHH-10458" title="Better encapsulate SchemaManagementTool (OGM) - unify JPA schema generation and hbm2ddl capabilities" class="issue-link" data-issue-key="HHH-10458" style="color: #3b73af; text-decoration: none">HHH-10458</a>.</p> <p style="margin: 10px 0 0 0">What we'll have to do:</p>
<ul>
<li>Implement an OGM-specific <tt>SchemaManagementTool</tt> and its delegates</li>
<li>Drop properties "hibernate.ogm.datastore.create_database" (replaced by "hbm2ddl.auto") and likely "hibernate.ogm.datastore.database" (I suppose "hibernate.default_schema" can be used instead)</li>
<li>Add support for dropping tables etc. -> add <tt>List<T> getDropCommands()</tt> to <tt>SchemaDefiner</tt> where <tt><T></tt> is a store-specific type of DDL commands (mostly String, but it may be some object representation e.g. for MongoDB which does not have a DDL)</li>
<li>The schema management mechanism supports different types of "targets": DATABASE, SCRIPT and STDOUT; In a first step OGM would only support the former; Naturally, the other two require DDL commands to have a String-assignable representation, so they may not be doable for some backends</li>
<li>Further steps will include
<ul>
<li>Support for reading import scripts (<tt>SourceType.SCRIPT</tt> etc.); Again the String-requirement may make it not supportable for some stores</li>
<li>Support for the other hbm2ddl modes (validation, migration)</li>
</ul> </li>
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