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.celeborn.service.deploy.worker.memory;
  
  /**
   * Warp {@link RecyclableBuffer} with a segmentId, it contains no data buffer, only the segmentId,
   * which is used to verify whether the subsequently buffer should be sent.
   */
  public class RecyclableSegmentIdBuffer extends RecyclableBuffer {
    private final int segmentId;
  
    public RecyclableSegmentIdBuffer(int subpartitionId, int segmentId) {
      super(null, subpartitionId, new BufferRecycler(buf -> {}));
      this.segmentId = segmentId;
    }
  
    public int getSegmentId() {
      return segmentId;
    }
  
    @Override
    public boolean isDataBuffer() {
      return false;
    }
  }
  