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.bookkeeper.api.kv.impl.result;
  
  import io.netty.util.Recycler.Handle;
  import lombok.Getter;
  import lombok.Setter;
  import lombok.ToString;
  import lombok.experimental.Accessors;
  import org.apache.bookkeeper.api.kv.op.OpType;
  import org.apache.bookkeeper.api.kv.result.KeyValue;
  import org.apache.bookkeeper.api.kv.result.PutResult;
  
  /**
   * An implementation of {@link PutResult}.
   */
  @Accessors(fluent = true, chain = true)
  @Getter
  @Setter
  @ToString
  public class PutResultImpl<K, V> extends ResultImpl<K, V, PutResultImpl<K, V>> implements PutResult<K, V> {
  
      private KeyValue<K, V> prevKv;
  
      PutResultImpl(Handle<PutResultImpl<K, V>> handle) {
          super(OpType.PUT, handle);
      }
  
      public PutResultImpl<K, V> prevKv(KeyValue<K, V> kv) {
          if (null != prevKv) {
              prevKv.close();
          }
          prevKv = kv;
          return this;
      }
  
      @Override
      PutResultImpl<K, V> asResult() {
          return this;
      }
  
      @Override
      protected void reset() {
          if (null != prevKv) {
              prevKv.close();
              prevKv = null;
          }
          super.reset();
      }
  
  }
  