com.opensymphony.workflow.util
Class Caller

java.lang.Object
  extended by com.opensymphony.workflow.util.Caller
All Implemented Interfaces:
FunctionProvider

public class Caller
extends Object
implements FunctionProvider

Sets the transient variable "caller" to the current user executing an action.

Version:
$Revision: 1.4 $
Author:
Pat Lightbody

Constructor Summary
Caller()
           
 
Method Summary
 void execute(Map transientVars, Map args, com.opensymphony.module.propertyset.PropertySet ps)
          Execute this function
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Caller

public Caller()
Method Detail

execute

public void execute(Map transientVars,
                    Map args,
                    com.opensymphony.module.propertyset.PropertySet ps)
Description copied from interface: FunctionProvider
Execute this function

Specified by:
execute in interface FunctionProvider
Parameters:
transientVars - Variables that will not be persisted. These include inputs given in the Workflow.initialize(java.lang.String, int, java.util.Map) and Workflow.doAction(long, int, java.util.Map) method calls. There are a number of special variable names:
  • entry: (object type: WorkflowEntry) The workflow instance
  • context: (object type: WorkflowContext). The workflow context.
  • actionId: The Integer ID of the current action that was take (if applicable).
  • currentSteps: A Collection of the current steps in the workflow instance.
  • store: The WorkflowStore.
  • descriptor: The WorkflowDescriptor.
Also, any variable set as a Register), will also be available in the transient map, no matter what. These transient variables only last through the method call that they were invoked in, such as Workflow.initialize(java.lang.String, int, java.util.Map) and Workflow.doAction(long, int, java.util.Map).
args - The properties for this function invocation. Properties are created from arg nested elements within the xml, an arg element takes in a name attribute which is the properties key, and the CDATA text contents of the element map to the property value.
ps - The persistent variables that are associated with the current instance of the workflow. Any change made to the propertyset are persisted to the propertyset implementation's persistent store.

OpenSymphony Workflow Project Page