/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF licenses this file to You under the Apache License, Version 2.0 | |
* (the "License"); you may not use this file except in compliance with | |
* the License. You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package org.apache.wicket.util; | |
/** | |
* Represents an object that is a part of a hierarchy | |
* | |
* @author Igor Vaynberg (ivaynberg) | |
* @param <T> | |
*/ | |
public interface IHierarchical<T> | |
{ | |
/** | |
* @return object's parent or {@code null} if this object is the root of the hierarchy | |
*/ | |
T getParent(); | |
} |