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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.util.upload;

import java.io.IOException;


/**
 * Interface of an object, which may be closed.
 */
public interface Closeable
{
	/**
	 * Closes the object.
	 * 
	 * @throws IOException
	 *             An I/O error occurred.
	 */
	void close() throws IOException;

	/**
	 * Returns, whether the object is already closed.
	 * 
	 * @return True, if the object is closed, otherwise false.
	 * @throws IOException
	 *             An I/O error occurred.
	 */
	boolean isClosed() throws IOException;
}