| /* |
| * 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.ignite.examples.datagrid; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCache; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.Ignition; |
| import org.apache.ignite.cache.CacheMode; |
| import org.apache.ignite.configuration.CacheConfiguration; |
| import org.apache.ignite.examples.ExampleNodeStartup; |
| import org.apache.ignite.lang.IgniteFuture; |
| |
| /** |
| * This example demonstrates some of the cache rich API capabilities. |
| * <p> |
| * Remote nodes should always be started with special configuration file which |
| * enables P2P class loading: {@code 'ignite.{sh|bat} examples/config/example-ignite.xml'}. |
| * <p> |
| * Alternatively you can run {@link ExampleNodeStartup} in another JVM which will |
| * start node with {@code examples/config/example-ignite.xml} configuration. |
| */ |
| public class CacheAsyncApiExample { |
| /** Cache name. */ |
| private static final String CACHE_NAME = CacheAsyncApiExample.class.getSimpleName(); |
| |
| /** |
| * Executes example. |
| * |
| * @param args Command line arguments, none required. |
| * @throws IgniteException If example execution failed. |
| */ |
| public static void main(String[] args) throws IgniteException { |
| try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) { |
| System.out.println(); |
| System.out.println(">>> Cache asynchronous API example started."); |
| |
| CacheConfiguration<Integer, String> cfg = new CacheConfiguration<>(); |
| |
| cfg.setCacheMode(CacheMode.PARTITIONED); |
| cfg.setName(CACHE_NAME); |
| |
| // Auto-close cache at the end of the example. |
| try (IgniteCache<Integer, String> cache = ignite.getOrCreateCache(cfg)) { |
| // Enable asynchronous mode. |
| IgniteCache<Integer, String> asyncCache = cache.withAsync(); |
| |
| Collection<IgniteFuture<?>> futs = new ArrayList<>(); |
| |
| // Execute several puts asynchronously. |
| for (int i = 0; i < 10; i++) { |
| asyncCache.put(i, String.valueOf(i)); |
| |
| futs.add(asyncCache.future()); |
| } |
| |
| // Wait for completion of all futures. |
| futs.forEach(IgniteFuture::get); |
| |
| // Execute get operation asynchronously. |
| asyncCache.get(1); |
| |
| // Asynchronously wait for result. |
| asyncCache.<String>future().listen(fut -> |
| System.out.println("Get operation completed [value=" + fut.get() + ']')); |
| } |
| finally { |
| // Distributed cache could be removed from cluster only by #destroyCache() call. |
| ignite.destroyCache(CACHE_NAME); |
| } |
| } |
| } |
| } |