TreeModel.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package com.sun.lwuit.tree;

import java.util.Vector;

/**
 * Arranges tree node objects, a node can essentially be anything
 *
 * @author Shai Almog
 */
public interface TreeModel {
    /**
     * Returns the child objects representing the given parent, null should return
     * the root objects
     *
     * @param parent the parent object whose children should be returned, null would return the
     * tree roots
     * @return the children of the given node within the tree
     */
    public Vector getChildren(Object parent);

    /**
     * Is the node a leaf or a folder
     *
     * @param node a node within the tree
     * @return true if the node is a leaf that can't be expanded
     */
    public boolean isLeaf(Object node);
}