01: package org.apache.lucene.search;
02:
03: /**
04: * Licensed to the Apache Software Foundation (ASF) under one or more
05: * contributor license agreements. See the NOTICE file distributed with
06: * this work for additional information regarding copyright ownership.
07: * The ASF licenses this file to You under the Apache License, Version 2.0
08: * (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: *
11: * http://www.apache.org/licenses/LICENSE-2.0
12: *
13: * Unless required by applicable law or agreed to in writing, software
14: * distributed under the License is distributed on an "AS IS" BASIS,
15: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16: * See the License for the specific language governing permissions and
17: * limitations under the License.
18: */
19:
20: import org.apache.lucene.util.PriorityQueue;
21:
22: final class PhraseQueue extends PriorityQueue {
23: PhraseQueue(int size) {
24: initialize(size);
25: }
26:
27: protected final boolean lessThan(Object o1, Object o2) {
28: PhrasePositions pp1 = (PhrasePositions) o1;
29: PhrasePositions pp2 = (PhrasePositions) o2;
30: if (pp1.doc == pp2.doc)
31: if (pp1.position == pp2.position)
32: // same doc and pp.position, so decide by actual term positions.
33: // rely on: pp.position == tp.position - offset.
34: return pp1.offset < pp2.offset;
35: else
36: return pp1.position < pp2.position;
37: else
38: return pp1.doc < pp2.doc;
39: }
40: }
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