| /* |
| * 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. |
| */ |
| |
| /* |
| * The Transaction QuickStart Example. |
| * |
| * This example takes the following steps: |
| * |
| * 1. Create a Geode Cache. |
| * 2. Create the example Region Programmatically. |
| * 3 Begin Transaction |
| * 4. Put Entries (Key and Value pairs) into the Region. |
| * 5. Commit Transaction |
| * 6. Get Entries from the Region. |
| * 7. Begin Transaction |
| * 8. Put Entries (Key and Value pairs) into the Region. |
| * 9. Destroy key |
| * 10. Rollback transaction |
| * 11. Get Entries from the Region. |
| * 12. Close the Cache. |
| * |
| */ |
| |
| // Use standard namespaces |
| using System; |
| |
| // Use the Geode namespace |
| using Apache.Geode.Client; |
| |
| // Use the .NET generics namespace |
| using System.Collections.Generic; |
| |
| namespace Apache.Geode.Client.QuickStart |
| { |
| |
| // Cache Transactions QuickStart example. |
| class Transactions |
| { |
| static void Main(string[] args) |
| { |
| try |
| { |
| // Create a Geode Cache |
| CacheFactory cacheFactory = CacheFactory.CreateCacheFactory(); |
| |
| Cache cache = cacheFactory.Create(); |
| |
| Console.WriteLine("Created the Geode cache."); |
| |
| RegionFactory regionFactory = cache.CreateRegionFactory(RegionShortcut.CACHING_PROXY); |
| |
| Console.WriteLine("Created the RegionFactory."); |
| |
| // Create the example Region |
| IRegion<string, string> region = regionFactory.Create<string, string>("exampleRegion"); |
| |
| Console.WriteLine("Created the region with generics support."); |
| |
| // Get the cache transaction manager from the cache. |
| CacheTransactionManager txManager = cache.CacheTransactionManager; |
| |
| // Starting a transaction |
| txManager.Begin(); |
| Console.WriteLine("Transaction started."); |
| |
| region["Key1"] = "Value1"; |
| region["Key2"] = "Value2"; |
| |
| Console.WriteLine("Put two entries into the region"); |
| |
| try { |
| txManager.Commit(); |
| } |
| catch (CommitConflictException e) |
| { |
| Console.WriteLine("CommitConflictException encountered. Exception: {0}", e.Message); |
| } |
| |
| if(region.ContainsKey("Key1")) |
| Console.WriteLine("Obtained the first entry from the Region"); |
| |
| if(region.ContainsKey("Key2")) |
| Console.WriteLine("Obtained the second entry from the Region"); |
| |
| //start a new transaction |
| txManager.Begin(); |
| Console.WriteLine("Transaction Started"); |
| |
| // Put a new entry |
| region["Key3"] = "Value3"; |
| Console.WriteLine("Put the third entry into the Region"); |
| |
| // remove the first key |
| region.Remove("Key1", null); |
| Console.WriteLine("remove the first entry"); |
| |
| txManager.Rollback(); |
| Console.WriteLine("Transaction Rollbacked"); |
| |
| if(region.ContainsKey("Key1")) |
| Console.WriteLine("Obtained the first entry from the Region"); |
| |
| if(region.ContainsKey("Key2")) |
| Console.WriteLine("Obtained the second entry from the Region"); |
| |
| if(region.ContainsKey("Key3")) |
| Console.WriteLine("ERROR: Obtained the third entry from the Region."); |
| |
| cache.Close(); |
| |
| Console.WriteLine("Closed the Geode Cache"); |
| } |
| // An exception should not occur |
| catch (GeodeException gfex) |
| { |
| Console.WriteLine("Transactions Geode Exception: {0}", gfex.Message); |
| } |
| } |
| } |
| } |