| /* |
| * 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 org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCache; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.Ignition; |
| import org.apache.ignite.cache.CacheAtomicityMode; |
| import org.apache.ignite.cache.CacheMode; |
| import org.apache.ignite.configuration.CacheConfiguration; |
| import org.apache.ignite.configuration.DataStorageConfiguration; |
| import org.apache.ignite.configuration.DataRegionConfiguration; |
| import org.apache.ignite.examples.ExampleNodeStartup; |
| |
| /** |
| * This example demonstrates how to tweak particular settings of Apache Ignite page memory using |
| * {@link DataStorageConfiguration} and set up several data regions for different caches with |
| * {@link DataRegionConfiguration}. |
| * <p> |
| * Additional remote nodes can be started with special configuration file which |
| * enables P2P class loading: {@code 'ignite.{sh|bat} example-data-regions.xml'}. |
| * <p> |
| * Alternatively you can run {@link ExampleNodeStartup} in another JVM which passing |
| * {@code examples/config/example-data-regions.xml} configuration to it. |
| */ |
| public class DataRegionsExample { |
| /** Name of the default data region defined in 'example-data-regions.xml'. */ |
| public static final String REGION_DEFAULT = "Default_Region"; |
| |
| /** Name of the data region that creates a memory region limited by 40 MB with eviction enabled */ |
| public static final String REGION_40MB_EVICTION = "40MB_Region_Eviction"; |
| |
| /** Name of the data region that creates a memory region mapped to a memory-mapped file. */ |
| public static final String REGION_30MB_MEMORY_MAPPED_FILE = "30MB_Region_Swapping"; |
| |
| /** |
| * 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-data-regions.xml")) { |
| System.out.println(); |
| System.out.println(">>> Data regions example started."); |
| |
| /* |
| * Preparing configurations for 2 caches that will be bound to the memory region defined by |
| * '10MB_Region_Eviction' data region from 'example-data-regions.xml' configuration. |
| */ |
| CacheConfiguration<Integer, Integer> firstCacheCfg = new CacheConfiguration<>("firstCache"); |
| |
| firstCacheCfg.setDataRegionName(REGION_40MB_EVICTION); |
| firstCacheCfg.setCacheMode(CacheMode.PARTITIONED); |
| firstCacheCfg.setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL); |
| |
| CacheConfiguration<Integer, Integer> secondCacheCfg = new CacheConfiguration<>("secondCache"); |
| secondCacheCfg.setDataRegionName(REGION_40MB_EVICTION); |
| secondCacheCfg.setCacheMode(CacheMode.REPLICATED); |
| secondCacheCfg.setAtomicityMode(CacheAtomicityMode.ATOMIC); |
| |
| IgniteCache<Integer, Integer> firstCache = ignite.createCache(firstCacheCfg); |
| IgniteCache<Integer, Integer> secondCache = ignite.createCache(secondCacheCfg); |
| |
| System.out.println(">>> Started two caches bound to '" + REGION_40MB_EVICTION + "' memory region."); |
| |
| /* |
| * Preparing a configuration for a cache that will be bound to the memory region defined by |
| * '5MB_Region_Swapping' data region from 'example-data-regions.xml' configuration. |
| */ |
| CacheConfiguration<Integer, Integer> thirdCacheCfg = new CacheConfiguration<>("thirdCache"); |
| |
| thirdCacheCfg.setDataRegionName(REGION_30MB_MEMORY_MAPPED_FILE); |
| |
| IgniteCache<Integer, Integer> thirdCache = ignite.createCache(thirdCacheCfg); |
| |
| System.out.println(">>> Started a cache bound to '" + REGION_30MB_MEMORY_MAPPED_FILE + "' memory region."); |
| |
| /* |
| * Preparing a configuration for a cache that will be bound to the default memory region defined by |
| * default 'Default_Region' data region from 'example-data-regions.xml' configuration. |
| */ |
| CacheConfiguration<Integer, Integer> fourthCacheCfg = new CacheConfiguration<>("fourthCache"); |
| |
| IgniteCache<Integer, Integer> fourthCache = ignite.createCache(fourthCacheCfg); |
| |
| System.out.println(">>> Started a cache bound to '" + REGION_DEFAULT + "' memory region."); |
| |
| System.out.println(">>> Destroying caches..."); |
| |
| firstCache.destroy(); |
| secondCache.destroy(); |
| thirdCache.destroy(); |
| fourthCache.destroy(); |
| } |
| } |
| } |