Bugzilla – Full Text Bug Listing
| Summary: | Cursor result with JPA query and dynamic fetch group | ||
|---|---|---|---|
| Product: | z_Archived | Reporter: | attila Mising name <mathe_attila> |
| Component: | Eclipselink | Assignee: | Nobody - feel free to take it <nobody> |
| Status: | NEW --- | QA Contact: | |
| Severity: | normal | ||
| Priority: | P2 | CC: | tom.ware |
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Hardware: | PC | ||
| OS: | Windows 7 | ||
| Whiteboard: | |||
see forum post: http://www.eclipse.org/forums/index.php/t/238330/ (cleaner code view :) ) Setting target and priority. See the following page for the meanings of these fields: http://wiki.eclipse.org/EclipseLink/Development/Bugs/Guidelines Community: Please vote for this bug if it is important to you. Votes are one of the main criteria we use to determine which bugs to fix next. The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink |
when using jpa query with dynamic fetch groups the cursor result does not work Steps: 1) Create a jpa query "select .... " 2) Add a dynamic fecth group FetchGroup fg = new FetchGroup("default"); fg.setShouldLoad(true); // add attributes query.setHint(QueryHints.FETCH_GROUP, fg); 3) Read with cursor: query.setHint(QueryHints.CURSOR, true) .setHint(QueryHints.CURSOR_INITIAL_SIZE, 30) .setHint(QueryHints.CURSOR_PAGE_SIZE, 30) .setHint(QueryHints.READ_ONLY, HintValues.TRUE) .setFirstResult(bld.getResultStart()) .setMaxResults(bld.getResultSize()); Cursor c = query.unwrap(JpaQuery.class).getResultCursor(); - The cursor works if no fetch-group is specified - With fetch-group works the regular .getResultList(); The error log: java.lang.NullPointerException [2011-09-03 16:12:02.974] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.sessions.AbstractSession$1.iterate(AbstractSession.java:4530) [2011-09-03 16:12:02.974] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.descriptors.DescriptorIterator.startIterationOn(DescriptorIterator.java:666) [2011-09-03 16:12:02.974] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.sessions.AbstractSession.load(AbstractSession.java:4559) [2011-09-03 16:12:02.974] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:1114) [2011-09-03 16:12:02.974] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:829) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1056) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:390) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.sessions.AbstractSession.internalExecuteQuery(AbstractSession.java:2816) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1501) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1483) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1457) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.jpa.EJBQueryImpl.executeReadQuery(EJBQueryImpl.java:485) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getResultCursor(EJBQueryImpl.java:661) [2011-09-03 16:12:02.975] ERROR "http-bio-8089"-exec-2 System.err at net.nan21.dnet.core.presenter.service.AbstractDsService.doExport(AbstractDsService.java:450)