/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.pattern.parser;
  
  public class CompositeNode extends SimpleKeywordNode {
  	Node childNode;
  
  	CompositeNode(String keyword) {
  		super(Node.COMPOSITE_KEYWORD, keyword);
  
  	}
  
  	public Node getChildNode() {
  		return childNode;
  	}
  
  	public void setChildNode(Node childNode) {
  		this.childNode = childNode;
  	}
  
  	public boolean equals(Object o) {
  		//System.out.println("CompositeNode.equals()");
      if(!super.equals(o)) {
        return false;
      }
      if (!(o instanceof CompositeNode)) {
  			return false;
  		}
  		CompositeNode r = (CompositeNode) o;
  
  		return (childNode != null) ? childNode.equals(r.childNode)
  						: (r.childNode == null);
  	}
  	
  	public String toString() {
  		StringBuffer buf = new StringBuffer();
  		if(childNode != null) {
  		 buf.append("CompositeNode("+childNode+")");
  		} else {
  			buf.append("CompositeNode(no child)");
  		}
  		buf.append(printNext());
  		return buf.toString();
  	}
  }