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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-9111" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-286f580e-049d-4610-b3fc-073b636c52ac" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9111" style="color: #3b73af; text-decoration: none">HHH-9111</a>
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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-9111" style="color: #3b73af; text-decoration: none">NamedNativeQuerys are not cacheable</a> </span>
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Issue Type:
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<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-bug-286f580e-049d-4610-b3fc-073b636c52ac" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /> Bug
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Affects Versions:
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4.3.5
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Assignee:
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Unassigned
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Components:
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annotations, entity-manager, query-sql
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Created:
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08/Apr/14 10:31 PM
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Priority:
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Reporter:
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<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="kthielma" id="email_kthielma" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=kthielma" style="color:#6c797f;; color: #3b73af; text-decoration: none">Kay Thielmann</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Hi,</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">i tried to use hibernate query cache to cache a long running SQL-Statement like this: <br /> @NamedNativeQuery(name="Position.countDistinctUrls",<br /> query="SELECT count(distinct a.url) as counturls FROM( "+<br /> "SELECT distinct tera.url "+<br /> "FROM seostar_teradata tera " +<br /> "WHERE tera.datum<=:dateTo AND tera.datum>=:dateFrom "+<br /> "AND tera.url like :url AND tera.keyword like :keyword "+<br /> "UNION " +<br /> "SELECT distinct pos.url "+<br /> "FROM seostar_position pos " +<br /> "WHERE pos.valid_from <= :dateTo AND pos.valid_to >= :dateFrom "+<br /> "AND pos.url like :url AND pos.keyword like :keyword "+<br /> ")a",resultSetMapping="DistinctUrls")</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In my DAO I added hints to this Query:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">@Override<br /> public Long countDistinctUrls(String urlFilter, String keywordFilter,<br /> Date from, Date to) </p> { urlFilter = StringUtils.escapeSQL(urlFilter).toLowerCase(); keywordFilter = StringUtils.escapeSQL(keywordFilter); Query query= getEntityManager().createNamedQuery("Position.countDistinctUrls"); query.setHint(QueryHints.HINT_CACHEABLE, true); query.setHint(QueryHints.HINT_READONLY, true); query.setParameter("url", urlFilter); query.setParameter("keyword", keywordFilter); query.setParameter("dateFrom", from); query.setParameter("dateTo", to); Object result = query.getSingleResult(); return ((BigInteger)result).longValue(); }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Without using a SqlResultSetMapping it's not even possible to write the Data into the Cache. Exception is:<br /> java.lang.IllegalStateException: aliases expected length is 0; actual length is 3</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Setting SqlResultSetMapping to </p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> @SqlResultSetMapping(<br /> name="TrendbyFilter",<br /> columns=</p> {@ColumnResult(name="pos",type=BigInteger.class), @ColumnResult(name="weight",type=BigInteger.class), @ColumnResult(name="urlkeywords",type=String.class)}
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> )</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">writing into Cache works, but reading from it doesn't! And thats the point where I'm not able to fix this any more.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">If you look how the NamedQueryRepository gets filled you'll see that the type value of all NativeSQLQueryScalarReturn-Objects always is null. The Type of @ColumnResult never gets used here. And that's why the CacheableResultTransformer throws a NullPointerException when trying to untransform.</p>
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