stateimpl.java

一个java工作流引擎

package org.jbpm.model.definition.impl;

import org.jbpm.*;
import org.jbpm.model.definition.*;
import org.jbpm.model.execution.impl.*;
import org.jbpm.model.log.impl.*;

public class StateImpl extends NodeImpl implements State {

  protected SwimlaneImpl swimlane = null;
  
	public StateImpl() {}

  public StateImpl( String name ) {
    super( name );
  }

  public StateImpl( String name, SwimlaneImpl actor ) {
    super( name );
    this.swimlane = actor;
  }

  public Swimlane getSwimlane() { return this.swimlane; }
  public void setSwimlane(Swimlane swimlane) { this.swimlane = (SwimlaneImpl) swimlane; }
  
  public void acceptToken(ExecutionContextImpl executionContext) throws ExecutionException {
    TokenImpl token = (TokenImpl) executionContext.getToken();
    token.setState( this );
    
    executeActions( EventType.STATE_ENTER, executionContext );
    
    String actorId = swimlane.getActorId( executionContext );

    AssignmentLogImpl assignmentLog = new AssignmentLogImpl(token.getLastAssignmentLog(), actorId, this );

    token.setActorId( actorId );
    token.add( assignmentLog );
    token.setLastAssignmentLog( assignmentLog );
    
    executeActions( EventType.STATE_AFTER_ASSIGNMENT, executionContext );
  }
  
  public String toString() {
    return "state["+name+"]"; 
  }
  
  public void toXml(org.dom4j.Element element) {
    toXmlNameAndDescription( element );
    toXmlSwimlane( element );
    toXmlActions(element);
    toXmlTransitions( element );
  }

  public void toXmlSwimlane(org.dom4j.Element element) {
    if ( swimlane != null ) {
      element.addAttribute( "swimlane", swimlane.getName() ); 
    }
  }

  public String getTagName() {
    return "state";
  }

  public EventType getDefaultEventType() {
    return EventType.STATE_ENTER;
  }
}