| /* |
| * 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.queryparser.flexible.standard.builders; |
| |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.queryparser.flexible.core.QueryNodeException; |
| import org.apache.lucene.queryparser.flexible.core.nodes.QueryNode; |
| import org.apache.lucene.queryparser.flexible.standard.nodes.PrefixWildcardQueryNode; |
| import org.apache.lucene.queryparser.flexible.standard.processors.MultiTermRewriteMethodProcessor; |
| import org.apache.lucene.search.MultiTermQuery; |
| import org.apache.lucene.search.PrefixQuery; |
| |
| /** |
| * Builds a {@link PrefixQuery} object from a {@link PrefixWildcardQueryNode} |
| * object. |
| */ |
| public class PrefixWildcardQueryNodeBuilder implements StandardQueryBuilder { |
| |
| public PrefixWildcardQueryNodeBuilder() { |
| // empty constructor |
| } |
| |
| @Override |
| public PrefixQuery build(QueryNode queryNode) throws QueryNodeException { |
| |
| PrefixWildcardQueryNode wildcardNode = (PrefixWildcardQueryNode) queryNode; |
| |
| String text = wildcardNode.getText().subSequence(0, wildcardNode.getText().length() - 1).toString(); |
| PrefixQuery q = new PrefixQuery(new Term(wildcardNode.getFieldAsString(), text)); |
| |
| MultiTermQuery.RewriteMethod method = (MultiTermQuery.RewriteMethod)queryNode.getTag(MultiTermRewriteMethodProcessor.TAG_ID); |
| if (method != null) { |
| q.setRewriteMethod(method); |
| } |
| |
| return q; |
| } |
| |
| } |