| /* |
| * 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.Examples.Thin.Cache.TransactionThin |
| { |
| using System; |
| using System.Transactions; |
| using Apache.Ignite.Core; |
| using Apache.Ignite.Core.Cache.Configuration; |
| using Apache.Ignite.Core.Client; |
| using Apache.Ignite.Core.Client.Cache; |
| using Apache.Ignite.Core.Transactions; |
| using Apache.Ignite.Examples.Shared; |
| using Apache.Ignite.Examples.Shared.Models; |
| |
| /// <summary> |
| /// This example demonstrates transactional data updates. |
| /// <para /> |
| /// This example requires an Ignite server node. You can start the node in any of the following ways: |
| /// * docker run -p 10800:10800 apacheignite/ignite |
| /// * dotnet run -p ServerNode.csproj |
| /// * ignite.sh/ignite.bat from the distribution |
| /// </summary> |
| public static class Program |
| { |
| private const string CacheName = "dotnet_cache_tx"; |
| |
| public static void Main() |
| { |
| using (IIgniteClient ignite = Ignition.StartClient(Utils.GetThinClientConfiguration())) |
| { |
| Console.WriteLine(); |
| Console.WriteLine(">>> Transaction example started."); |
| |
| var cache = ignite.GetOrCreateCache<int, Account>(new CacheClientConfiguration |
| { |
| Name = CacheName, |
| AtomicityMode = CacheAtomicityMode.Transactional |
| }); |
| |
| InitAccounts(cache); |
| |
| Console.WriteLine("\n>>> Transferring with Ignite transaction API..."); |
| |
| // Transfer money between accounts in a single transaction. |
| using (var tx = ignite.GetTransactions().TxStart(TransactionConcurrency.Pessimistic, |
| TransactionIsolation.RepeatableRead)) |
| { |
| Account acc1 = cache.Get(1); |
| Account acc2 = cache.Get(2); |
| |
| acc1.Balance += 100; |
| acc2.Balance -= 100; |
| |
| cache.Put(1, acc1); |
| cache.Put(2, acc2); |
| |
| tx.Commit(); |
| } |
| |
| DisplayAccounts(cache); |
| |
| InitAccounts(cache); |
| |
| Console.WriteLine("\n>>> Transferring with TransactionScope API..."); |
| |
| // Do the same transaction with TransactionScope API. |
| using (var ts = new TransactionScope()) |
| { |
| Account acc1 = cache.Get(1); |
| Account acc2 = cache.Get(2); |
| |
| acc1.Balance += 100; |
| acc2.Balance -= 100; |
| |
| cache.Put(1, acc1); |
| cache.Put(2, acc2); |
| |
| ts.Complete(); |
| } |
| |
| DisplayAccounts(cache); |
| } |
| |
| Console.WriteLine(); |
| Console.WriteLine(">>> Example finished, press any key to exit ..."); |
| Console.ReadKey(); |
| } |
| |
| /// <summary> |
| /// Displays accounts. |
| /// </summary> |
| private static void DisplayAccounts(ICacheClient<int, Account> cache) |
| { |
| Console.WriteLine(">>> Transfer finished."); |
| |
| Console.WriteLine(); |
| Console.WriteLine(">>> Accounts after transfer: "); |
| Console.WriteLine(">>> " + cache.Get(1)); |
| Console.WriteLine(">>> " + cache.Get(2)); |
| Console.WriteLine(); |
| } |
| |
| /// <summary> |
| /// Initializes account balance. |
| /// </summary> |
| private static void InitAccounts(ICacheClient<int, Account> cache) |
| { |
| // Clean up caches on all nodes before run. |
| cache.Clear(); |
| |
| // Initialize. |
| cache.Put(1, new Account(1, 100)); |
| cache.Put(2, new Account(2, 200)); |
| |
| Console.WriteLine(); |
| Console.WriteLine(">>> Accounts before transfer: "); |
| Console.WriteLine(">>> " + cache.Get(1)); |
| Console.WriteLine(">>> " + cache.Get(2)); |
| Console.WriteLine(); |
| } |
| } |
| } |