pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / queryparser / src / test / org / apache / lucene / queryParser / spans / UniqueFieldAttributeImpl.java

diff --git a/lucene-java-3.5.0/lucene/contrib/queryparser/src/test/org/apache/lucene/queryParser/spans/UniqueFieldAttributeImpl.java b/lucene-java-3.5.0/lucene/contrib/queryparser/src/test/org/apache/lucene/queryParser/spans/UniqueFieldAttributeImpl.java
new file mode 100644 (file)
index 0000000..4d17fcc
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+++ b/lucene-java-3.5.0/lucene/contrib/queryparser/src/test/org/apache/lucene/queryParser/spans/UniqueFieldAttributeImpl.java
@@ -0,0 +1,95 @@
+package org.apache.lucene.queryParser.spans;
+
+/**
+ * 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 org.apache.lucene.queryParser.core.nodes.FieldableNode;
+import org.apache.lucene.util.AttributeImpl;
+
+/**
+ * This attribute is used by the {@link UniqueFieldQueryNodeProcessor}
+ * processor. It holds a value that defines which is the unique field name that
+ * should be set in every {@link FieldableNode}.<br/>
+ * <br/>
+ * 
+ * @see UniqueFieldQueryNodeProcessor
+ */
+public class UniqueFieldAttributeImpl extends AttributeImpl implements
+    UniqueFieldAttribute {
+
+  private static final long serialVersionUID = 8553318595851064232L;
+
+  { enableBackwards = false; }
+  
+  private CharSequence uniqueField;
+
+  public UniqueFieldAttributeImpl() {
+    clear();
+  }
+
+  @Override
+  public void clear() {
+    this.uniqueField = "";
+  }
+
+  public void setUniqueField(CharSequence uniqueField) {
+    this.uniqueField = uniqueField;
+  }
+
+  public CharSequence getUniqueField() {
+    return this.uniqueField;
+  }
+
+  @Override
+  public void copyTo(AttributeImpl target) {
+
+    if (!(target instanceof UniqueFieldAttributeImpl)) {
+      throw new IllegalArgumentException(
+          "cannot copy the values from attribute UniqueFieldAttribute to an instance of "
+              + target.getClass().getName());
+    }
+
+    UniqueFieldAttributeImpl uniqueFieldAttr = (UniqueFieldAttributeImpl) target;
+    uniqueFieldAttr.uniqueField = uniqueField.toString();
+
+  }
+
+  @Override
+  public boolean equals(Object other) {
+
+    if (other instanceof UniqueFieldAttributeImpl) {
+
+      return ((UniqueFieldAttributeImpl) other).uniqueField
+          .equals(this.uniqueField);
+
+    }
+
+    return false;
+
+  }
+
+  @Override
+  public int hashCode() {
+    return this.uniqueField.hashCode();
+  }
+
+  @Override
+  public String toString() {
+    return "<uniqueField uniqueField='" + this.uniqueField + "'/>";
+  }
+
+}