1 package org.apache.lucene.queryParser.standard.builders;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
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20 import org.apache.lucene.queryParser.core.QueryNodeException;
21 import org.apache.lucene.queryParser.core.builders.QueryTreeBuilder;
22 import org.apache.lucene.queryParser.core.nodes.QueryNode;
23 import org.apache.lucene.queryParser.core.nodes.SlopQueryNode;
24 import org.apache.lucene.search.MultiPhraseQuery;
25 import org.apache.lucene.search.PhraseQuery;
26 import org.apache.lucene.search.Query;
29 * This builder basically reads the {@link Query} object set on the
30 * {@link SlopQueryNode} child using
31 * {@link QueryTreeBuilder#QUERY_TREE_BUILDER_TAGID} and applies the slop value
32 * defined in the {@link SlopQueryNode}.
34 public class SlopQueryNodeBuilder implements StandardQueryBuilder {
36 public SlopQueryNodeBuilder() {
40 public Query build(QueryNode queryNode) throws QueryNodeException {
41 SlopQueryNode phraseSlopNode = (SlopQueryNode) queryNode;
43 Query query = (Query) phraseSlopNode.getChild().getTag(
44 QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);
46 if (query instanceof PhraseQuery) {
47 ((PhraseQuery) query).setSlop(phraseSlopNode.getValue());
50 ((MultiPhraseQuery) query).setSlop(phraseSlopNode.getValue());