Package org.apache.openjpa.enhance

Class InstrumentationFactory

java.lang.Object
org.apache.openjpa.enhance.InstrumentationFactory
public class InstrumentationFactory extends Object
Factory for obtaining an Instrumentation instance.
Since:
1.0.0
Author:
Marc Prud'hommeaux

  • Constructor Details

    • InstrumentationFactory

      public InstrumentationFactory()

  • Method Details

    • setInstrumentation

      public static void setInstrumentation(Instrumentation inst)
      This method is not synchronized because when the agent is loaded from getInstrumentation() that method will cause agentmain(..) to be called. Synchronizing this method would cause a deadlock.
      Parameters:
      inst - The instrumentation instance to be used by this factory.

    • setDynamicallyInstallAgent

      public static void setDynamicallyInstallAgent(boolean val)
      Configures whether or not this instance should attempt to dynamically install an agent in the VM. Defaults to true.

    • getInstrumentation

      public static Instrumentation getInstrumentation(Log log)
      Parameters:
      log - OpenJPA log.
      Returns:
      null if Instrumentation can not be obtained, or if any Exceptions are encountered.

    • agentmain

      public static void agentmain(String agentArgs, Instrumentation inst)
      The method that is called when a jar is added as an agent at runtime. All this method does is store the Instrumentation for later use.