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/*
 * 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.index.Terms; // javadocs only
import org.apache.lucene.util.Attribute;
import org.apache.lucene.util.AttributeSource; // javadocs only
import org.apache.lucene.util.BytesRef;

/**
 * Add this {@link Attribute} to a fresh {@link AttributeSource} before calling {@link
 * MultiTermQuery#getTermsEnum(Terms,AttributeSource)}. {@link FuzzyQuery} is using this to control
 * its internal behaviour to only return competitive terms.
 *
 * 

Please note: This attribute is intended to be added by the {@link * MultiTermQuery.RewriteMethod} to an empty {@link AttributeSource} that is shared for all segments * during query rewrite. This attribute source is passed to all segment enums on {@link * MultiTermQuery#getTermsEnum(Terms,AttributeSource)}. {@link TopTermsRewrite} uses this attribute * to inform all enums about the current boost, that is not competitive. * * @lucene.internal */ public interface MaxNonCompetitiveBoostAttribute extends Attribute { /** This is the maximum boost that would not be competitive. */ public void setMaxNonCompetitiveBoost(float maxNonCompetitiveBoost); /** * This is the maximum boost that would not be competitive. Default is negative infinity, which * means every term is competitive. */ public float getMaxNonCompetitiveBoost(); /** This is the term or null of the term that triggered the boost change. */ public void setCompetitiveTerm(BytesRef competitiveTerm); /** * This is the term or null of the term that triggered the boost change. Default is * null, which means every term is competitoive. */ public BytesRef getCompetitiveTerm(); }





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