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.op;
  
  import static io.netty.util.ReferenceCountUtil.release;
  import static io.netty.util.ReferenceCountUtil.retain;
  
  import io.netty.util.Recycler.Handle;
  import lombok.AccessLevel;
  import lombok.Getter;
  import lombok.RequiredArgsConstructor;
  import lombok.Setter;
  import lombok.ToString;
  import lombok.experimental.Accessors;
  import org.apache.bookkeeper.api.kv.op.OpType;
  import org.apache.bookkeeper.api.kv.op.RangeOp;
  import org.apache.bookkeeper.api.kv.options.RangeOption;
  
  @Accessors(fluent = true, chain = true)
  @Getter
  @Setter(AccessLevel.PACKAGE)
  @RequiredArgsConstructor(access = AccessLevel.PACKAGE)
  @ToString(exclude = "handle")
  class RangeOpImpl<K, V> implements RangeOp<K, V> {
  
      private final Handle<RangeOpImpl<K, V>> handle;
  
      private K key;
      private RangeOption<K> option;
  
      @Override
      public OpType type() {
          return OpType.RANGE;
      }
  
      RangeOpImpl<K, V> key(K key) {
          release(this.key);
          this.key = retain(key);
          return this;
      }
  
      @Override
      public void close() {
          release(key);
          this.key = null;
          if (null != option) {
              option.close();
              option = null;
          }
  
          handle.recycle(this);
      }
  }
  