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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-10458" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-7c5249a8-f1f3-4e0e-999e-d439acab02cc" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10458" style="color: #3b73af; text-decoration: none">HHH-10458</a> </td>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-10458" style="color: #3b73af; text-decoration: none">Better encapsulate SchemaManagementTool (OGM) - unify JPA schema generation and hbm2ddl capabilities</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="steve" id="email_steve" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=steve" style="color:#6c797f;; color: #3b73af; text-decoration: none">Steve Ebersole</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">At the end of the day, the point of this enhancement request is to better encapsulate {{SchemaManagementTool}} such that OMG etal can really truly replace that service. This is a multi-faceted request. <br><br>The main consideration is the {{org.hibernate.tool.schema.spi.Target}} contract as it is passed to the individual delegates of the {{SchemaManagementTool}}. {{Target}} assumes that schema management commands are representable as Strings as they are in RDBMS/JDBC environment. For OGM however that is often not the case. To cater for that, {{Target}} should no longer be passed into the {{SchemaManagementTool}} delegates. Instead, the {{SchemaManagementTool}} implementation or its delegates should interpret any config and decide itself what to do. In that sense, {{Target}} would become an internal detail within the standard ORM {{SchemaManagementTool}} implementation.<br><br></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">Part of solution to this main consideration</span> <span class="diffaddedchars" style="background-color:#ddfade;">Another facet</span> <span class="diffcontext"> involves unifying the</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> </span> <span class="diffaddedchars" style="background-color:#ddfade;"> JPA schema generation and hbm2ddl capabilities. At the moment OGM would not be able to override how JPA schema generation works. We obviously need to account for that. The corollary to {{Target}} on the JPA schema-gen side is {{org.hibernate.jpa.internal.schemagen.GenerationTarget}}. They are pretty equivalent except that {{Target}} accepts commands one by one, whereas {{GenerationTarget}} accepts them all at once. Seeing how {{org.hibernate.jpa.internal.schemagen.JpaSchemaGenerator}} is not replaceable by the user or integrations at all anyway, dramatically changing these contracts and/or moving them around is not a major concern.</span> </td>
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