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Difference between revisions of "EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Performance Monitoring and Profiling/Fetch Group Monitoring"
< EclipseLink | UserGuide | JPA | Advanced JPA Development | Performance | Performance Monitoring and Profiling
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| + | Use the Fetch Group Monitor to measure fetch group field usage. This can be useful for performance analysis in a complex system. | ||
| + | Enable this monitor using the System property <tt>org.eclipse.persistence.fetchgroupmonitor=true</tt>. | ||
| + | The monitor dumps the attribute used for a class every time a new attribute is accessed. | ||
| + | |||
| + | For more information about fetch groups, see [[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Fetch Groups|Fetch Groups]]. | ||
Revision as of 15:23, 28 January 2011
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Key API
Fetch Group Monitoring
Use the Fetch Group Monitor to measure fetch group field usage. This can be useful for performance analysis in a complex system.
Enable this monitor using the System property org.eclipse.persistence.fetchgroupmonitor=true.
The monitor dumps the attribute used for a class every time a new attribute is accessed.
For more information about fetch groups, see Fetch Groups.
