NullTreeModel.java

/*
 * Created on Sep 27, 2006
 */
package org.seqcode.projects.seqview.components;

import javax.swing.event.TreeModelListener;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;

/**
 * @author tdanford
 */
public class NullTreeModel implements TreeModel {
    
    public NullTreeModel() {}

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#getRoot()
     */
    public Object getRoot() {
        return null;
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#getChild(java.lang.Object, int)
     */
    public Object getChild(Object arg0, int arg1) {
        return null;
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#getChildCount(java.lang.Object)
     */
    public int getChildCount(Object arg0) {
        return 0;
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#isLeaf(java.lang.Object)
     */
    public boolean isLeaf(Object arg0) {
        return false;
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#valueForPathChanged(javax.swing.tree.TreePath, java.lang.Object)
     */
    public void valueForPathChanged(TreePath arg0, Object arg1) {
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#getIndexOfChild(java.lang.Object, java.lang.Object)
     */
    public int getIndexOfChild(Object arg0, Object arg1) {
        return 0;
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#addTreeModelListener(javax.swing.event.TreeModelListener)
     */
    public void addTreeModelListener(TreeModelListener arg0) {
    }

    /* (non-Javadoc)
     * @see javax.swing.tree.TreeModel#removeTreeModelListener(javax.swing.event.TreeModelListener)
     */
    public void removeTreeModelListener(TreeModelListener arg0) {
    }
}