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package org.apache.lucene.queryParser.standard.builders;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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import org.apache.lucene.queryParser.core.QueryNodeException;
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import org.apache.lucene.queryParser.core.builders.QueryTreeBuilder;
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import org.apache.lucene.queryParser.core.nodes.QueryNode;
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import org.apache.lucene.queryParser.core.nodes.SlopQueryNode;
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import org.apache.lucene.search.MultiPhraseQuery;
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import org.apache.lucene.search.PhraseQuery;
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import org.apache.lucene.search.Query;
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* This builder basically reads the {@link Query} object set on the
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* {@link SlopQueryNode} child using
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* {@link QueryTreeBuilder#QUERY_TREE_BUILDER_TAGID} and applies the slop value
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* defined in the {@link SlopQueryNode}.
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public class SlopQueryNodeBuilder implements StandardQueryBuilder {
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public SlopQueryNodeBuilder() {
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public Query build(QueryNode queryNode) throws QueryNodeException {
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SlopQueryNode phraseSlopNode = (SlopQueryNode) queryNode;
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Query query = (Query) phraseSlopNode.getChild().getTag(
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QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);
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if (query instanceof PhraseQuery) {
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((PhraseQuery) query).setSlop(phraseSlopNode.getValue());
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((MultiPhraseQuery) query).setSlop(phraseSlopNode.getValue());