/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.graph.action;

import org.jbpm.graph.def.ActionHandler;
import org.jbpm.graph.exe.ExecutionContext;

public class SeamedAction implements ActionHandler {

  private static final long serialVersionUID = 1L;
  
  String expression = null;

  public void execute(ExecutionContext executionContext) throws Exception {
    try {
      beginSeamConversation(executionContext);
      invokeSeamObjectExpression();
    } finally {
      endSeamConversation(executionContext);
    }
  }

  protected void beginSeamConversation(ExecutionContext executionContext) {
  }

  protected void invokeSeamObjectExpression() {
    // execute 'expression' 
  }

  protected void endSeamConversation(ExecutionContext executionContext) {
  }
}