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: /** Constrains search results to only match those which also match a provided
21: * query. Results are cached, so that searches after the first on the same
22: * index using this filter are much faster.
23: *
24: * @version $Id: QueryFilter.java 528298 2007-04-13 00:59:28Z hossman $
25: * @deprecated use a CachingWrapperFilter with QueryWrapperFilter
26: */
27: public class QueryFilter extends CachingWrapperFilter {
28:
29: /** Constructs a filter which only matches documents matching
30: * <code>query</code>.
31: */
32: public QueryFilter(Query query) {
33: super (new QueryWrapperFilter(query));
34: }
35:
36: public boolean equals(Object o) {
37: return super .equals((QueryFilter) o);
38: }
39:
40: public int hashCode() {
41: return super .hashCode() ^ 0x923F64B9;
42: }
43: }
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