/* interface TreeNode
*
* Copyright (C) 2003 R M Pitman
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package charvax.swing.tree;
import java.util.Enumeration;
/**
* This interface defines the requirements for an object that can be
* used as a node in a JTree.
*/
public interface TreeNode
{
/** Returns the child TreeNode at index childIndex.
*/
public TreeNode getChildAt(int childIndex);
/** Returns the number of children TreeNodes the TreeNode contains.
*/
public int getChildCount();
/** Returns the parent TreeNode of this TreeNode.
*/
public TreeNode getParent();
/** Returns true if this TreeNode allows children.
*/
public boolean getAllowsChildren();
/** Returns true if this TreeNode is a leaf.
*/
public boolean isLeaf();
/** Returns the children of the receiver as an Enumeration.
*/
public Enumeration<TreeNode> children();
}