org.camunda.bpm.application.impl
Class ProcessApplicationReferenceImpl

java.lang.Object
  org.camunda.bpm.application.impl.ProcessApplicationReferenceImpl

All Implemented Interfaces:

ProcessApplicationReference

public class ProcessApplicationReferenceImpl
extends Object
implements ProcessApplicationReference

A ProcessApplicationReference implementation using WeakReference.

As long as the process application is deployed, the container or the application will hold a strong reference to the AbstractProcessApplication object. This class holds a WeakReference. When the process application is undeployed, the container or application releases all strong references. Since we only pass ProcessApplicationReferences to the process engine, it is guaranteed that the AbstractProcessApplication object can be reclaimed by the garbage collector, even if the undeployment and unregistration should fail for some improbable reason.

Author:

Daniel Meyer

Field Summary

protected String	name
protected WeakReference<AbstractProcessApplication>	processApplication the weak reference to the process application

Constructor Summary

ProcessApplicationReferenceImpl(AbstractProcessApplication processApplication)

Method Summary

void	clear()
String	getName()
AbstractProcessApplication	getProcessApplication() Get the process application.
void	processEngineStopping(ProcessEngine processEngine)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

processApplication

protected WeakReference<AbstractProcessApplication> processApplication

the weak reference to the process application

name

protected String name

Constructor Detail

ProcessApplicationReferenceImpl

public ProcessApplicationReferenceImpl(AbstractProcessApplication processApplication)

Method Detail

getName

public String getName()

Specified by:

getName in interface ProcessApplicationReference

Returns:

the name of the process application

getProcessApplication

public AbstractProcessApplication getProcessApplication()
                                                 throws ProcessApplicationUnavailableException

Description copied from interface: ProcessApplicationReference

Get the process application.

Specified by:

getProcessApplication in interface ProcessApplicationReference

Returns:

the AbstractProcessApplication

Throws:

ProcessApplicationUnavailableException - if the process application is unavailable

processEngineStopping

public void processEngineStopping(ProcessEngine processEngine)
                           throws ProcessApplicationUnavailableException

Throws:

ProcessApplicationUnavailableException

clear

public void clear()