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