| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.lucene.search; |
| |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.Term; |
| |
| /** |
| * A {@code FilterWeight} contains another {@code Weight} and implements |
| * all abstract methods by calling the contained weight's method. |
| * |
| * Note that {@code FilterWeight} does not override the non-abstract |
| * {@link Weight#bulkScorer(LeafReaderContext)} method and subclasses of |
| * {@code FilterWeight} must provide their bulkScorer implementation |
| * if required. |
| * |
| * @lucene.internal |
| */ |
| public abstract class FilterWeight extends Weight { |
| |
| final protected Weight in; |
| |
| /** |
| * Default constructor. |
| */ |
| protected FilterWeight(Weight weight) { |
| this(weight.getQuery(), weight); |
| } |
| |
| /** |
| * Alternative constructor. |
| * Use this variant only if the <code>weight</code> was not obtained |
| * via the {@link Query#createWeight(IndexSearcher, ScoreMode, float)} |
| * method of the <code>query</code> object. |
| */ |
| protected FilterWeight(Query query, Weight weight) { |
| super(query); |
| this.in = weight; |
| } |
| |
| @Override |
| public boolean isCacheable(LeafReaderContext ctx) { |
| return in.isCacheable(ctx); |
| } |
| |
| @Override |
| public void extractTerms(Set<Term> terms) { |
| in.extractTerms(terms); |
| } |
| |
| @Override |
| public Explanation explain(LeafReaderContext context, int doc) throws IOException { |
| return in.explain(context, doc); |
| } |
| |
| @Override |
| public Scorer scorer(LeafReaderContext context) throws IOException { |
| return in.scorer(context); |
| } |
| |
| @Override |
| public Matches matches(LeafReaderContext context, int doc) throws IOException { |
| return in.matches(context, doc); |
| } |
| } |