pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / queryparser / src / java / org / apache / lucene / queryParser / standard / builders / PhraseQueryNodeBuilder.java

diff --git a/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/builders/PhraseQueryNodeBuilder.java b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/builders/PhraseQueryNodeBuilder.java
new file mode 100644 (file)
index 0000000..a1128ae
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+++ b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/builders/PhraseQueryNodeBuilder.java
@@ -0,0 +1,64 @@
+package org.apache.lucene.queryParser.standard.builders;
+
+/**
+ * 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.
+ */
+
+import java.util.List;
+
+import org.apache.lucene.queryParser.core.QueryNodeException;
+import org.apache.lucene.queryParser.core.builders.QueryTreeBuilder;
+import org.apache.lucene.queryParser.core.nodes.FieldQueryNode;
+import org.apache.lucene.queryParser.core.nodes.QueryNode;
+import org.apache.lucene.queryParser.core.nodes.TokenizedPhraseQueryNode;
+import org.apache.lucene.search.PhraseQuery;
+import org.apache.lucene.search.TermQuery;
+
+/**
+ * Builds a {@link PhraseQuery} object from a {@link TokenizedPhraseQueryNode}
+ * object.
+ */
+public class PhraseQueryNodeBuilder implements StandardQueryBuilder {
+
+  public PhraseQueryNodeBuilder() {
+    // empty constructor
+  }
+
+  public PhraseQuery build(QueryNode queryNode) throws QueryNodeException {
+    TokenizedPhraseQueryNode phraseNode = (TokenizedPhraseQueryNode) queryNode;
+
+    PhraseQuery phraseQuery = new PhraseQuery();
+
+    List<QueryNode> children = phraseNode.getChildren();
+
+    if (children != null) {
+
+      for (QueryNode child : children) {
+        TermQuery termQuery = (TermQuery) child
+            .getTag(QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);
+        FieldQueryNode termNode = (FieldQueryNode) child;
+
+        phraseQuery.add(termQuery.getTerm(), termNode.getPositionIncrement());
+
+      }
+
+    }
+
+    return phraseQuery;
+
+  }
+
+}