01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. The ASF licenses this file to You
04: * under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License. For additional information regarding
15: * copyright in this work, please see the NOTICE file in the top level
16: * directory of this distribution.
17: */
18:
19: package org.apache.roller.pojos;
20:
21: import java.io.Serializable;
22: import java.util.Comparator;
23: import org.apache.roller.pojos.wrapper.WeblogEntryDataWrapper;
24:
25: /**
26: * Sorts WeblogEntryData objects in reverse chronological order
27: * (most recently published entries first). If they happen to
28: * have the same pubTime, then sort alphabetically by title.
29: *
30: * @author lance.lavandowska
31: */
32: public class WeblogEntryWrapperComparator implements Comparator,
33: Serializable {
34: static final long serialVersionUID = -9067148992322255150L;
35:
36: public int compare(Object val1, Object val2)
37: throws ClassCastException {
38: WeblogEntryDataWrapper entry1 = (WeblogEntryDataWrapper) val1;
39: WeblogEntryDataWrapper entry2 = (WeblogEntryDataWrapper) val2;
40: long pubTime1 = entry1.getPubTime().getTime();
41: long pubTime2 = entry2.getPubTime().getTime();
42:
43: if (pubTime1 > pubTime2) {
44: return -1;
45: } else if (pubTime1 < pubTime2) {
46: return 1;
47: }
48:
49: // if pubTimes are the same, return
50: // results of String.compareTo() on Title
51: return entry1.getTitle().compareTo(entry2.getTitle());
52: }
53: }
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