content: /*
   * 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.asterix.common.dataflow;
  
  import java.io.IOException;
  
  import org.apache.hyracks.api.context.IHyracksTaskContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.storage.am.lsm.common.api.IFrameOperationCallback;
  import org.apache.hyracks.storage.am.lsm.common.api.IFrameOperationCallbackFactory;
  import org.apache.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
  
  public class NoOpFrameOperationCallbackFactory implements IFrameOperationCallbackFactory {
      private static final long serialVersionUID = 1L;
      private static final NoOpFrameOperationCallback CALLBACK = new NoOpFrameOperationCallback();
      public static final NoOpFrameOperationCallbackFactory INSTANCE = new NoOpFrameOperationCallbackFactory();
  
      private NoOpFrameOperationCallbackFactory() {
      }
  
      @Override
      public IFrameOperationCallback createFrameOperationCallback(IHyracksTaskContext ctx,
              ILSMIndexAccessor indexAccessor) {
          return CALLBACK;
      }
  
      private static class NoOpFrameOperationCallback implements IFrameOperationCallback {
          @Override
          public void frameCompleted() throws HyracksDataException {
              // No Op
          }
  
          @Override
          public void beforeExit(boolean success) throws HyracksDataException {
              // No Op
          }
  
          @Override
          public void close() throws IOException {
              // No Op
          }
  
          @Override
          public void fail(Throwable th) {
              // No Op
          }
  
          @Override
          public void open() throws HyracksDataException {
              // No Op
          }
      }
  }
  