| /* |
| * 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 org.apache.lucene.util.Attribute; |
| import org.apache.lucene.util.AttributeSource; // javadocs only |
| import org.apache.lucene.index.TermsEnum; // javadocs only |
| import org.apache.lucene.index.Terms; // javadocs only |
| |
| /** Add this {@link Attribute} to a {@link TermsEnum} returned by {@link MultiTermQuery#getTermsEnum(Terms,AttributeSource)} |
| * and update the boost on each returned term. This enables to control the boost factor |
| * for each matching term in {@link MultiTermQuery#SCORING_BOOLEAN_REWRITE} or |
| * {@link TopTermsRewrite} mode. |
| * {@link FuzzyQuery} is using this to take the edit distance into account. |
| * <p><b>Please note:</b> This attribute is intended to be added only by the TermsEnum |
| * to itself in its constructor and consumed by the {@link MultiTermQuery.RewriteMethod}. |
| * @lucene.internal |
| */ |
| public interface BoostAttribute extends Attribute { |
| float DEFAULT_BOOST = 1.0f; |
| /** Sets the boost in this attribute */ |
| public void setBoost(float boost); |
| /** Retrieves the boost, default is {@code 1.0f}. */ |
| public float getBoost(); |
| } |