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.commons.fileupload.util;
018
019import java.io.IOException;
020
021/**
022 * Interface of an object, which may be closed.
023 */
024public interface Closeable {
025
026    /**
027     * Closes the object.
028     *
029     * @throws IOException An I/O error occurred.
030     */
031    void close() throws IOException;
032
033    /**
034     * Returns, whether the object is already closed.
035     *
036     * @return True, if the object is closed, otherwise false.
037     * @throws IOException An I/O error occurred.
038     */
039    boolean isClosed() throws IOException;
040
041}