| /* |
| * 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. |
| */ |
| |
| namespace Apache.Ignite.Core.Cache |
| { |
| /// <summary> |
| /// An invocable function that allows applications to perform compound operations |
| /// on a cache entry atomically, according the defined consistency of a cache. |
| /// <para /> |
| /// Any cache entry mutations will not take effect until after |
| /// the <see cref="Process" /> method has completedS execution. |
| /// <para /> |
| /// If an exception is thrown by an entry processor, a Caching Implementation |
| /// must wrap any exception thrown wrapped in an <see cref="CacheEntryProcessorException" /> |
| /// If this occurs no mutations will be made to the cache entry. |
| /// </summary> |
| /// <typeparam name="TK">Key type.</typeparam> |
| /// <typeparam name="TV">Value type.</typeparam> |
| /// <typeparam name="TArg">The type of the processor argument.</typeparam> |
| /// <typeparam name="TRes">The type of the processor result.</typeparam> |
| public interface ICacheEntryProcessor<in TK, TV, in TArg, out TRes> |
| { |
| /// <summary> |
| /// Process an entry. |
| /// </summary> |
| /// <param name="entry">The entry to process.</param> |
| /// <param name="arg">The argument.</param> |
| /// <returns>Processing result.</returns> |
| TRes Process(IMutableCacheEntry<TK, TV> entry, TArg arg); |
| } |
| } |