@@ -0,0 +1,1470 @@
+/*%0A * Licensed to the University of California, Berkeley under one or more contributor license%0A * agreements. See the NOTICE file distributed with this work for additional information regarding%0A * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance with the License. You may obtain a%0A * copy of the License at%0A *%0A * http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software distributed under the License%0A * is distributed on an %22AS IS%22 BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express%0A * or implied. See the License for the specific language governing permissions and limitations under%0A * the License.%0A */%0A%0Apackage tachyon.worker.block;%0A%0A/**%0A * Interface for listening on methods of %7B@link TieredBlockStore%7D.%0A */%0Apublic interface BlockStoreEventListener %7B%0A%0A  void preCreateBlock(long userId, long blockId, int tierHint);%0A%0A  void postCreateBlock(long userId, long blockId, int tierHint);%0A%0A  void preReadBlock(long userId, long blockId, long offset, long length);%0A%0A  void postReadBlock(long userId, long blockId, long offset, long length);%0A%0A  void preRelocateBlock(long userId, long blockId, int newTierHint);%0A%0A  void postRelocateBlock(long userId, long blockId, int newTierHint);%0A%0A  void preRemoveBlock(long userId, long blockId);%0A%0A  void postRemoveBlock(long userId, long blockId);%0A%7D%0A

Add an interface to listen on various of events regarding block store