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;
018
019
020 /**
021 * The {@link ProgressListener} may be used to display a progress bar
022 * or do stuff like that.
023 */
024 public interface ProgressListener {
025 /** Updates the listeners status information.
026 * @param pBytesRead The total number of bytes, which have been read
027 * so far.
028 * @param pContentLength The total number of bytes, which are being
029 * read. May be -1, if this number is unknown.
030 * @param pItems The number of the field, which is currently being
031 * read. (0 = no item so far, 1 = first item is being read, ...)
032 */
033 void update(long pBytesRead, long pContentLength, int pItems);
034 }