/* * 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.commons.fileupload;import java.io.IOException;/** * An iterator, as returned by * {@link FileUploadBase#getItemIterator(RequestContext)}. */public interface FileItemIterator {    /**     * Returns, whether another instance of {@link FileItemStream}     * is available.     * @throws FileUploadException Parsing or processing the     *   file item failed.     * @throws IOException Reading the file item failed.     * @return True, if one or more additional file items     *   are available, otherwise false.     */    boolean hasNext() throws FileUploadException, IOException;    /**     * Returns the next available {@link FileItemStream}.     * @throws java.util.NoSuchElementException No more items are available. Use     * {@link #hasNext()} to prevent this exception.     * @throws FileUploadException Parsing or processing the     *   file item failed.     * @throws IOException Reading the file item failed.     * @return FileItemStream instance, which provides     *   access to the next file item.     */    FileItemStream next() throws FileUploadException, IOException;}