01 package gate.creole.annic.apache.lucene.index;
02
03 /**
04 * Copyright 2004 The Apache Software Foundation
05 *
06 * Licensed under the Apache License, Version 2.0 (the "License");
07 * you may not use this file except in compliance with the License.
08 * You may obtain a copy of the License at
09 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 import java.io.IOException;
20 import gate.creole.annic.apache.lucene.util.PriorityQueue;
21
22 final class SegmentMergeQueue extends PriorityQueue {
23 SegmentMergeQueue(int size) {
24 initialize(size);
25 }
26
27 protected final boolean lessThan(Object a, Object b) {
28 SegmentMergeInfo stiA = (SegmentMergeInfo)a;
29 SegmentMergeInfo stiB = (SegmentMergeInfo)b;
30 int comparison = stiA.term.compareTo(stiB.term);
31 if (comparison == 0)
32 return stiA.base < stiB.base;
33 else
34 return comparison < 0;
35 }
36
37 final void close() throws IOException {
38 while (top() != null)
39 ((SegmentMergeInfo)pop()).close();
40 }
41
42 }
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