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<td class="page-title-pattern-first-line " style="padding: 0; 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-12300" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-2c61bdfa-f671-49b9-a0b5-a3937a7fae09" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-12300" style="color: #3b73af; text-decoration: none">HHH-12300</a> </td>
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<td style="vertical-align: top;; padding: 0; 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-12300" style="color: #3b73af; text-decoration: none">@Formula could resolve registered SQL functions instead of just concatenating the name</a> </span> </td>
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<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-2c61bdfa-f671-49b9-a0b5-a3937a7fae09" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"> Improvement </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 15/Feb/2018 11:57 AM </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="Martin Frey" id="email_Martin Frey" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=Martin+Frey" style="color:#6c797f;; color: #3b73af; text-decoration: none">Martin Frey</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0">With the SqlFunctionRegistry we have the possibility to hide the fact that there are different implementations of a function, for example based on the given dialect.<br> This allows us to have the same name for an H2 function, as well as an Oracle function located in a plsql package.<br> This already works inside HQL but fails if used inside @Formula:</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Entity
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>SomeEntity {
@Formula(<span class="code-quote" style="color: #009100">"get_action_status(id)"</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">String</span> actionStatus;
}
</pre>
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<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>GCOSqlFunctionRegistrar <span class="code-keyword" style="color: #000091">implements</span> HibernateSqlFunctionRegistrar {
@Override
<span class="code-keyword" style="color: #000091">public</span> Map<<span class="code-object" style="color: #910091">String</span>, SQLFunction> getSqlFunctions(Dialect dialect) {
Map<<span class="code-object" style="color: #910091">String</span>, SQLFunction> sqlFunctions = <span class="code-keyword" style="color: #000091">new</span> HashMap<>();
<span class="code-keyword" style="color: #000091">if</span> (dialect <span class="code-keyword" style="color: #000091">instanceof</span> HSQLDialect) {
registerFunction(sqlFunctions, <span class="code-quote" style="color: #009100">"get_action_status"</span>,
<span class="code-keyword" style="color: #000091">new</span> StandardSQLFunction(<span class="code-quote" style="color: #009100">"get_action_status"</span>, StandardBasicTypes.STRING));
} <span class="code-keyword" style="color: #000091">else</span> <span class="code-keyword" style="color: #000091">if</span> (dialect <span class="code-keyword" style="color: #000091">instanceof</span> Oracle12cDialect) {
registerFunction(sqlFunctions, <span class="code-quote" style="color: #009100">"get_action_status"</span>,
<span class="code-keyword" style="color: #000091">new</span> StandardSQLFunction(<span class="code-quote" style="color: #009100">"somepkg.get_action_status"</span>, StandardBasicTypes.STRING));
}
<span class="code-keyword" style="color: #000091">return</span> sqlFunctions;
}
}
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I believe the Template class already provides the necessary code to identify if the function is registered or not:</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">isFunctionOrKeyword(lcToken, nextToken, dialect , functionRegistry) </p> </td>
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