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diff --git a/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/TermEnum.java b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/TermEnum.java
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+package org.apache.lucene.index;
+
+/**
+ * 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.IOException;
+import java.io.Closeable;
+
+/** Abstract class for enumerating terms.
+
+  <p>Term enumerations are always ordered by Term.compareTo().  Each term in
+  the enumeration is greater than all that precede it.  */
+
+public abstract class TermEnum implements Closeable {
+  /** Increments the enumeration to the next element.  True if one exists.*/
+  public abstract boolean next() throws IOException;
+
+  /** Returns the current Term in the enumeration.*/
+  public abstract Term term();
+
+  /** Returns the docFreq of the current Term in the enumeration.*/
+  public abstract int docFreq();
+
+  /** Closes the enumeration to further activity, freeing resources. */
+  public abstract void close() throws IOException;
+}