/*
* 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.examples.ExampleNodeStartup;
import org.apache.ignite.lang.IgniteFuture;
import org.apache.ignite.lang.IgniteInClosure;
/**
* 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.");
// Auto-close cache at the end of the example.
try (IgniteCache<Integer, String> cache = ignite.getOrCreateCache(CACHE_NAME)) {
Collection<IgniteFuture<?>> futs = new ArrayList<>();
// Execute several puts asynchronously.
for (int i = 0; i < 10; i++)
futs.add(cache.putAsync(i, String.valueOf(i)));
// Wait for completion of all futures.
for (IgniteFuture<?> fut : futs)
fut.get();
// Execute get operation asynchronously and wait for result.
cache.getAsync(1).listen(new IgniteInClosure<IgniteFuture<String>>() {
@Override public void apply(IgniteFuture<String> 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);
}
}
}
}