How to send paramters to actionhandler when using JbpmHandlerProxy

[2nice]

Before using spring-modules I have this type of code in the processdefinition:

<action name="validate" class="com.handlers.MyActionHandler" config-type="bean">         	
             <callbackjndiname>PersonCallback</callbackjndiname>
         	   <callbackmethod>validate</callbackmethod>
         	<signalType>1</signalType>
         </action>

The parameters could be retrieved in the actionhandler.

Now when I have started to use spring-modules for jbpm I can´t figure out how to add the parameters to get access to them in the actionhandler specified in the targetBean tag.
I have this code in a processdefinition:

<action name="validate" class="org.springmodules.workflow.jbpm31.JbpmHandlerProxy" config-type="bean">
         	 <targetBean>workflowNodeActionHandler</targetBean>
             <callbackjndiname>PersonCallback</callbackjndiname>
         	   <callbackmethod>validate</callbackmethod>
         	<signalType>1</signalType>
         </action>

[/CODE]
But this don´t work because the actionhandler isn´t the action class. Hopefully there is a way to solve it but I haven´t yet figured out how to specify the parameters and to make it possible to get access to them from the real actionhandler.

Thanks in advance!

/Henrik


I have found one solution for my problem but don´t know if it is the best. I inherited the JbpmHandlerProxy and put my extra attributes in that class. Then I can access them in this way from my handler:

MyJbpmHandlerProxy proxy = (MyJbpmHandlerProxy) executionContext.getNode().getAction().getActionDelegation().getInstance();
proxy.getXXX

[buzzterrier]

I had the same issue, so thanks for your post. I liked the idea of extending the JbpmHandlerProxy but to make things easier I overrode the execute/assign method from jbpmHandlerProxy. I then set my properties directly on my real handler and then called the handler's assign or execute method.

public class MyAssignment_Default_Proxy extends JbpmHandlerProxy {

	String userName;

	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	

	public void assign(Assignable assignable, ExecutionContext executionContext) throws Exception {

               //get the handler and cast it to my handler
		MyAssignment_Default handler = (MyAssignment_Default) lookupBean(AssignmentHandler.class);
		
                //set the userName property on my handler
		handler.setUserName(this.userName);

                //fire the assign method on my handler
		handler.assign(assignable, executionContext);
	}

}

Set it in the process definition

...
      <assignment class="com.foo.MyAssignment_Default_Proxy" config-type="bean">
        <targetBean>myAssignment_Default</targetBean>
        <userName>Buzz Terrier</userName>
      </assignment>
...

Not sure if this is the best way, but it works for me.