pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / src / java / org / apache / lucene / analysis / tokenattributes / PayloadAttributeImpl.java

diff --git a/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/analysis/tokenattributes/PayloadAttributeImpl.java b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/analysis/tokenattributes/PayloadAttributeImpl.java
new file mode 100644 (file)
index 0000000..5c697c5
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/analysis/tokenattributes/PayloadAttributeImpl.java
@@ -0,0 +1,101 @@
+package org.apache.lucene.analysis.tokenattributes;
+
+/**
+ * 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.io.Serializable;
+
+import org.apache.lucene.index.Payload;
+import org.apache.lucene.util.AttributeImpl;
+
+/**
+ * The payload of a Token. See also {@link Payload}.
+ */
+public class PayloadAttributeImpl extends AttributeImpl implements PayloadAttribute, Cloneable, Serializable {
+  private Payload payload;  
+  
+  /**
+   * Initialize this attribute with no payload.
+   */
+  public PayloadAttributeImpl() {}
+  
+  /**
+   * Initialize this attribute with the given payload. 
+   */
+  public PayloadAttributeImpl(Payload payload) {
+    this.payload = payload;
+  }
+  
+  /**
+   * Returns this Token's payload.
+   */ 
+  public Payload getPayload() {
+    return this.payload;
+  }
+
+  /** 
+   * Sets this Token's payload.
+   */
+  public void setPayload(Payload payload) {
+    this.payload = payload;
+  }
+  
+  @Override
+  public void clear() {
+    payload = null;
+  }
+
+  @Override
+  public Object clone()  {
+    PayloadAttributeImpl clone = (PayloadAttributeImpl) super.clone();
+    if (payload != null) {
+      clone.payload = (Payload) payload.clone();
+    }
+    return clone;
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == this) {
+      return true;
+    }
+    
+    if (other instanceof PayloadAttribute) {
+      PayloadAttributeImpl o = (PayloadAttributeImpl) other;
+      if (o.payload == null || payload == null) {
+        return o.payload == null && payload == null;
+      }
+      
+      return o.payload.equals(payload);
+    }
+    
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    return (payload == null) ? 0 : payload.hashCode();
+  }
+
+  @Override
+  public void copyTo(AttributeImpl target) {
+    PayloadAttribute t = (PayloadAttribute) target;
+    t.setPayload((payload == null) ? null : (Payload) payload.clone());
+  }  
+
+  
+}