org.apache.openjpa.enhance
Class PCEnhancerAgent
java.lang.Object
org.apache.openjpa.enhance.PCEnhancerAgent
public class PCEnhancerAgent
- extends Object
Java agent that makes persistent classes work with OpenJPA at runtime. This
is achieved by either running the enhancer on the classes as they are loaded,
or by redefining the classes on the fly. The agent is launched at JVM startup
from the command line:
java -javaagent:openjpa.jar[=<options>]
The options string
should be formatted as a OpenJPA plugin, and may contain any properties
understood by the OpenJPA enhancer or any configuration properties. For
example:
java -javaagent:openjpa.jar
By default, if specified, the agent runs the OpenJPA enhancer on all classes
listed in the first persistence unit as they are loaded, and redefines all
other persistent classes when they are encountered. To disable enhancement at
class-load time and rely solely on the redefinition logic, set the
ClassLoadEnhancement flag to false. To disable redefinition and rely solely
on pre-deployment or class-load enhancement, set the RuntimeRedefinition flag
to false.
java -javaagent:openjpa.jar=ClassLoadEnhancement=false
- Author:
- Abe White, Patrick Linskey
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PCEnhancerAgent
public PCEnhancerAgent()
getLoadSuccessful
public static boolean getLoadSuccessful()
- Returns:
- True if the Agent has ran successfully. False otherwise.
disableDynamicAgent
public static void disableDynamicAgent()
loadDynamicAgent
public static boolean loadDynamicAgent(Log log)
- Parameters:
log
-
- Returns:
- True if the agent is loaded successfully
premain
public static void premain(String args,
Instrumentation inst)
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