Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19222#discussion_r171787057
--- Diff:
common/unsafe/src/main/java/org/apache/spark/unsafe/memory/OffHeapMemoryBlock.java
---
@@ -0,0 +1,89 @@
+/*
+ * 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.memory;
+
+import org.apache.spark.unsafe.Platform;
+
+public class OffHeapMemoryBlock extends MemoryBlock {
+ static public final OffHeapMemoryBlock NULL = new OffHeapMemoryBlock(0,
0);
+
+ public OffHeapMemoryBlock(long address, long size) {
+ super(null, address, size);
+ }
+
+ @Override
+ public MemoryBlock subBlock(long offset, long size) {
+ return new OffHeapMemoryBlock(this.offset + offset, size);
+ }
+
+ public final int getInt(long offset) {
--- End diff --
`@Override`?
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