/*
* 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);
}