Java Persistence API (JPA) Extensions Reference for EclipseLink, Release 2.5
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Use eclipselink.profiler to specify which performance profiler to use in order to capture runtime statistics.


Table 5-83 describes this persistence property's values.

Table 5-83 Valid Values for profiler

Value Description


Do not use a performance profiler.


Use EclipseLink performance profiler ( class).


Monitor query executions and cache hits ( class).

This option provides a simple low-overhead means for measuring performance of query executions and cache hits. You may want to use this option for performance analysis in a complex system.

Custom profiler

Specify a custom profiler class name which implements SessionProfiler and provides a no-argument constructor.



Example 5-81 shows how to use this property in the persistence.xml file.

Example 5-81 Using profiler in persistence.xml

<property name="eclipselink.profiler" value="PerformanceProfiler"/>

Example 5-82 shows how to use this property in a property map.

Example 5-82 Using profiler in Property Map

import org.eclipse.persistence.config.ProfilerType;import org.eclipse.persistence.config.PersistenceUnitProperties;
propertiesMap.put(PersistenceUnitProperties.PROFILER, ProfilerType.PerformanceProfiler);

See Also

For more information, see: