01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.commons.fileupload;
18:
19: /**
20: * The {@link ProgressListener} may be used to display a progress bar
21: * or do stuff like that.
22: */
23: public interface ProgressListener {
24: /** Updates the listeners status information.
25: * @param pBytesRead The total number of bytes, which have been read
26: * so far.
27: * @param pContentLength The total number of bytes, which are being
28: * read. May be -1, if this number is unknown.
29: * @param pItems The number of the field, which is currently being
30: * read. (0 = no item so far, 1 = first item is being read, ...)
31: */
32: void update(long pBytesRead, long pContentLength, int pItems);
33: }
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