package org.greenstone.gatherer.util;

import javax.swing.*;
import javax.swing.tree.*;
import org.greenstone.gatherer.util.SynchronizedTreeNode;

public class DefaultSynchronizedTreeNode
	extends DefaultMutableTreeNode
	implements SynchronizedTreeNode {

	private String text = null;

	DefaultSynchronizedTreeNode(Object userObject) {
		super(userObject);
	}

	public SynchronizedTreeNode cloneNode() {
		// Create new node with same userObject
		SynchronizedTreeNode new_node = new DefaultSynchronizedTreeNode(userObject);
		// Clone and add children.
		for(int i = 0; i < getChildCount(); i++) {
			SynchronizedTreeNode child = (SynchronizedTreeNode) getChildAt(i);
			new_node.insert(child.cloneNode(), i);
		}
		return new_node;
	}

	public int compareTo(Object other) {
		if(text == null) {
			text = userObject.toString();
		}
		return text.compareTo(other.toString());
	}

	public boolean equals(Object other) {
		if(text == null) {
			text = userObject.toString();
		}
		return text.equals(other.toString());
	}

	public String toString() {
		if(text == null) {
			text = userObject.toString();
		}
		return text;
	}
}