1 files changed, 29 insertions, 0 deletions
diff --git a/unsafe/src/main/java/org/apache/spark/unsafe/KVIterator.java b/unsafe/src/main/java/org/apache/spark/unsafe/KVIterator.java
new file mode 100644
index 0000000000..fb163401c0
--- /dev/null
+++ b/unsafe/src/main/java/org/apache/spark/unsafe/KVIterator.java
@@ -0,0 +1,29 @@
+/*
+ * 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.
+ */
+
+package org.apache.spark.unsafe;
+
+public abstract class KVIterator<K, V> {
+
+  public abstract boolean next();
+
+  public abstract K getKey();
+
+  public abstract V getValue();
+
+  public abstract void close();
+}