sequencereader.java

来自「ejb3 java session bean」· Java 代码 · 共 52 行

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the JBPM BPEL PUBLIC LICENSE AGREEMENT as
 * published by JBoss Inc.; either version 1.0 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.
 */
package org.jbpm.bpel.xml;

import java.util.Iterator;

import org.w3c.dom.Element;

import org.jbpm.bpel.graph.def.Activity;
import org.jbpm.bpel.graph.def.CompositeActivity;
import org.jbpm.bpel.graph.struct.Sequence;

/**
 * Encapsulates the logic to create and connect process elements that make up
 * the <i>sequence</i> structure.
 * @author Juan Cantu
 * @version $Revision: 1.6 $ $Date: 2007/05/31 12:55:12 $
 */
public class SequenceReader extends ActivityReader {

  /**
   * Loads the activity properties from the given DOM element
   */
  public Activity read(Element activityElem, CompositeActivity parent) {
    Sequence sequence = new Sequence();
    readStandardProperties(activityElem, sequence, parent);
    readSequence(activityElem, sequence);
    return sequence;
  }

  protected void readSequence(Element sequenceElem, Sequence sequence) {
    // activities
    Iterator activityElemIt = bpelReader.getActivityElements(sequenceElem);
    while (activityElemIt.hasNext()) {
      Element activityElem = (Element) activityElemIt.next();
      bpelReader.readActivity(activityElem, sequence);
    }
  }
}