pylucene 3.5.0-3

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

diff --git a/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/nodes/PrefixWildcardQueryNode.java b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/nodes/PrefixWildcardQueryNode.java
new file mode 100644 (file)
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+++ b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/nodes/PrefixWildcardQueryNode.java
@@ -0,0 +1,65 @@
+package org.apache.lucene.queryParser.standard.nodes;
+
+import org.apache.lucene.queryParser.core.nodes.FieldQueryNode;
+
+/**
+ * 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.
+ */
+
+/**
+ * A {@link PrefixWildcardQueryNode} represents wildcardquery that matches abc*
+ * or *. This does not apply to phrases, this is a special case on the original
+ * lucene parser. TODO: refactor the code to remove this special case from the
+ * parser. and probably do it on a Processor
+ */
+public class PrefixWildcardQueryNode extends WildcardQueryNode {
+
+  private static final long serialVersionUID = 6851557641826407515L;
+
+  /**
+   * @param field
+   *          - field name
+   * @param text
+   *          - value including the wildcard
+   * @param begin
+   *          - position in the query string
+   * @param end
+   *          - position in the query string
+   */
+  public PrefixWildcardQueryNode(CharSequence field, CharSequence text,
+      int begin, int end) {
+    super(field, text, begin, end);
+  }
+
+  public PrefixWildcardQueryNode(FieldQueryNode fqn) {
+    this(fqn.getField(), fqn.getText(), fqn.getBegin(), fqn.getEnd());
+  }
+
+  @Override
+  public String toString() {
+    return "<prefixWildcard field='" + this.field + "' term='" + this.text
+        + "'/>";
+  }
+
+  @Override
+  public PrefixWildcardQueryNode cloneTree() throws CloneNotSupportedException {
+    PrefixWildcardQueryNode clone = (PrefixWildcardQueryNode) super.cloneTree();
+
+    // nothing to do here
+
+    return clone;
+  }
+}