 | Report generated by Clover Code Coverage v2.3.0 Fri May 9 2008 10:54:33 EST. |
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| 1 | package org.apache.lucene.search; | |
| 2 | ||
| 3 | /** | |
| 4 | * Copyright 2004 The Apache Software Foundation | |
| 5 | * | |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 7 | * you may not use this file except in compliance with the License. | |
| 8 | * You may obtain a copy of the License at | |
| 9 | * | |
| 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.util.BitSet; | |
| 20 | import java.io.IOException; | |
| 21 | import org.apache.lucene.index.IndexReader; | |
| 22 | ||
| 23 | /** Abstract base class providing a mechanism to restrict searches to a subset | |
| 24 | of an index. */ | |
| 25 | public abstract class Filter implements java.io.Serializable { | |
| 26 | /** Returns a BitSet with true for documents which should be permitted in | |
| 27 | search results, and false for those that should not. */ | |
| 28 | public abstract BitSet bits(IndexReader reader) throws IOException; | |
| 29 | } | |
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