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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-11208" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-df04d9cf-d8f3-44e9-ae6a-b4939e26dbce" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11208" style="color: #3b73af; text-decoration: none">HHH-11208</a> </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="tomvanrossom" id="email_tomvanrossom" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=tomvanrossom" style="color:#6c797f;; color: #3b73af; text-decoration: none">Tom Van Rossom</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"> <span class="diffcontext">Vlad Mihalcea suggested of logging a ticket for this [SO|http://stackoverflow.com/questions/40257688/hibernate-querytranslatorimpl-hql-ast-parsing-performance</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">#comment67816046_40260896</span> <span class="diffcontext">] <br><br>If've noticed, the QueryPlanCache was not used, if executing Spring-data -jpa findAll method with an EntityGraph annotation.<br><br>I've added the EntityGraph annotations for performance reason's, but it turned out a performance loss: expensive HQL-Query parsing takes place every time the method is excuted.<br><br>{code:title=QueryImpl.java|borderStyle=solid}<br>private List<X> list() {<br> if (getEntityGraphQueryHint() != null) {<br> SessionImplementor sessionImpl = (SessionImplementor) getEntityManager().getSession();<br> HQLQueryPlan entityGraphQueryPlan = new HQLQueryPlan( getHibernateQuery().getQueryString(), false,<br> sessionImpl.getEnabledFilters(), sessionImpl.getFactory(), getEntityGraphQueryHint() );<br> // Safe to assume QueryImpl at this point.<br> unwrap( org.hibernate.internal.QueryImpl.class ).setQueryPlan( entityGraphQueryPlan );<br> }<br> return query.list();<br> }<br>{code}<br><br>A new HQLQueryPlan is created without checking the QueryPlanCache <br><br></span> </td>
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