com.stratio.cassandra.lucene.search.condition.NoneCondition Maven / Gradle / Ivy
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* Licensed to STRATIO (C) under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional information
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* 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
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*/
package com.stratio.cassandra.lucene.search.condition;
import com.google.common.base.Objects;
import com.stratio.cassandra.lucene.schema.Schema;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.Query;
/**
* A {@link Condition} implementation that matches none documents.
*
* @author Andres de la Pena {@literal }
*/
public class NoneCondition extends Condition {
/**
* Constructor without field arguments.
*
* @param boost The boost for this query clause. Documents matching this clause will (in addition to the normal
* weightings) have their score multiplied by {@code boost}. If {@code null}, then {@link
* #DEFAULT_BOOST} is used as default.
*/
public NoneCondition(Float boost) {
super(boost);
}
/** {@inheritDoc} */
@Override
public Query query(Schema schema) {
Query query = new BooleanQuery.Builder().build();
query.setBoost(boost);
return query;
}
/** {@inheritDoc} */
@Override
public String toString() {
return Objects.toStringHelper(this).add("boost", boost).toString();
}
}