org.camunda.bpm.engine.impl.el
Class ProcessApplicationElResolverDelegate

java.lang.Object
  org.camunda.bpm.engine.impl.javax.el.ELResolver
      org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate
          org.camunda.bpm.engine.impl.el.ProcessApplicationElResolverDelegate

public class ProcessApplicationElResolverDelegate
extends AbstractElResolverDelegate

This is an ELResolver implementation that delegates to a ProcessApplication-provided ELResolver. The idea is that in a multi-application setup, a shared process engine may orchestrate multiple process applications. In this setting we want to delegate to the current process application for performing expression resolving. This also allows individual process applications to integrate with different kinds of Di Containers or other expression-context providing frameworks. For instance, a first process application may use the spring application context for resolving Java Delegate implementations while a second application may use CDI or even an Apache Camel Context.

The behavior of this implementation is as follows: if we are not currently running in the context of a process application, we are skipped. If we are, this implementation delegates to the underlying application-provided ELResolver which may itself be a CompositeELResolver.

Author:

Daniel Meyer

Field Summary

Fields inherited from class org.camunda.bpm.engine.impl.javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

ProcessApplicationElResolverDelegate()

Method Summary

protected ELResolver

getElResolverDelegate()

Methods inherited from class org.camunda.bpm.engine.impl.el.AbstractElResolverDelegate

getCommonPropertyType, getFeatureDescriptors, getType, getValue, invoke, isReadOnly, setValue

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessApplicationElResolverDelegate

public ProcessApplicationElResolverDelegate()

Method Detail

getElResolverDelegate

protected ELResolver getElResolverDelegate()

Specified by:

getElResolverDelegate in class AbstractElResolverDelegate