001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.event;
018
019/**
020 * Objects that can send events
021 * 
022 * @author Igor Vaynberg (ivaynberg)
023 */
024@FunctionalInterface
025public interface IEventSource
026{
027        /**
028         * Sends an event
029         * 
030         * @param <T>
031         *            type of payload
032         * 
033         * @param sink
034         *            object that will receive the event
035         * @param broadcast
036         *            if the object that receives the event needs to broadcast it to others, this is the
037         *            type of broadcast that should be used
038         * @param payload
039         *            event payload
040         */
041        <T> void send(IEventSink sink, Broadcast broadcast, T payload);
042}