| /* |
| * 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.op; |
| |
| import org.apache.bookkeeper.common.annotation.InterfaceAudience.Public; |
| import org.apache.bookkeeper.common.annotation.InterfaceStability.Evolving; |
| |
| /** |
| * A compare operator used in a {@link org.apache.bookkeeper.api.kv.Txn}. |
| * |
| * @param <K> key type |
| * @param <V> value type |
| */ |
| @Public |
| @Evolving |
| public interface CompareOp<K, V> extends AutoCloseable { |
| |
| CompareTarget target(); |
| |
| CompareResult result(); |
| |
| K key(); |
| |
| V value(); |
| |
| long revision(); |
| |
| @Override |
| void close(); |
| |
| } |