/* * 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.application; import org.apache.wicket.Component; /** * Listener interface that receives messages when components are constructed. This mechanism is used * by {@link org.apache.wicket.authorization.IAuthorizationStrategy}, but can additionally be used * to implement things like dependency injection support etc. * * <strong>Implementations must be thread safe</strong> * * @author Eelco Hillenius */ @FunctionalInterface public interface IComponentInstantiationListener { /** * Called for every component that is instantiated. This method is called * <strong>during</strong> construction, so do not depend on the construction being completed * yet. The id is guaranteed to be set before this call. * * @param component * the component that is being instantiated. */ void onInstantiation(Component component); }