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Pax Wicket Service is an OSGi extension of the Wicket framework, allowing for dynamic loading and unloading of Wicket components and pageSources.

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/*
 * 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.event;

/**
 * Objects that can send events
 * 
 * @author Igor Vaynberg (ivaynberg)
 */
public interface IEventSource
{
	/**
	 * Sends an event
	 * 
	 * @param 
	 *            type of payload
	 * 
	 * @param sink
	 *            object that will receive the event
	 * @param broadcast
	 *            if the object that receives the event needs to broadcast it to others, this is the
	 *            type of broadcast that should be used
	 * @param payload
	 *            event payload
	 */
	 void send(IEventSink sink, Broadcast broadcast, T payload);
}