public Class FetchGroupMonitor

Class Inheritance

extends Object

java.lang.Object
org.eclipse.persistence.tools.profiler.FetchGroupMonitor

Imports

java.util.*, org.eclipse.persistence.internal.security.PrivilegedAccessHelper

Purpose: Provide a very simple low overhead means for measuring fetch group field usage. This can be useful for performance analysis in a complex system. This monitor is enabled through the System property "org.eclipse.persistence.fetchgroupmonitor=true". It dumps the attribute used for a class every time a new attribute is accessed.

Author: James Sutherland
Since: TopLink 10.1.3.2

Field Summary

Modifier and Type	Field and Description
public static Hashtable<Class<?>, Set<String>>	fetchedAttributes
public static Boolean	shouldMonitor

Constructor Summary

Access	Constructor and Description
public	FetchGroupMonitor()

Method Summary

Modifier and Type	Method and Description
public static void	recordFetchedAttribute(Class<?> domainClass, String attributeName)
public static boolean	shouldMonitor()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

fetchedAttributes	back to summary
public static Hashtable<Class<?>, Set<String>> fetchedAttributes

shouldMonitor	back to summary
public static Boolean shouldMonitor

Constructor Detail

FetchGroupMonitor	back to summary
public FetchGroupMonitor()

Method Detail

recordFetchedAttribute	back to summary
public static void recordFetchedAttribute(Class<?> domainClass, String attributeName)

shouldMonitor	back to summary
public static boolean shouldMonitor()