| /* |
| * 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.events; |
| |
| import java.util.Map; |
| import java.util.UUID; |
| import org.apache.ignite.cluster.ClusterNode; |
| |
| import static org.apache.ignite.events.EventType.EVT_CONSISTENCY_VIOLATION; |
| |
| /** |
| * Event indicates a consistency violation. |
| * <p> |
| * Grid events are used for notification about what happens within the grid. Note that by |
| * design Ignite keeps all events generated on the local node locally and it provides |
| * APIs for performing a distributed queries across multiple nodes: |
| * <ul> |
| * <li> |
| * {@link org.apache.ignite.IgniteEvents#remoteQuery(org.apache.ignite.lang.IgnitePredicate, long, int...)} - |
| * asynchronously querying events occurred on the nodes specified, including remote nodes. |
| * </li> |
| * <li> |
| * {@link org.apache.ignite.IgniteEvents#localQuery(org.apache.ignite.lang.IgnitePredicate, int...)} - |
| * querying only local events stored on this local node. |
| * </li> |
| * <li> |
| * {@link org.apache.ignite.IgniteEvents#localListen(org.apache.ignite.lang.IgnitePredicate, int...)} - |
| * listening to local grid events (events from remote nodes not included). |
| * </li> |
| * </ul> |
| * User can also wait for events using method {@link org.apache.ignite.IgniteEvents#waitForLocal(org.apache.ignite.lang.IgnitePredicate, int...)}. |
| * <h1 class="header">Events and Performance</h1> |
| * Note that by default all events in Ignite are enabled and therefore generated and stored |
| * by whatever event storage SPI is configured. Ignite can and often does generate thousands events per seconds |
| * under the load and therefore it creates a significant additional load on the system. If these events are |
| * not needed by the application this load is unnecessary and leads to significant performance degradation. |
| * <p> |
| * It is <b>highly recommended</b> to enable only those events that your application logic requires |
| * by using {@link org.apache.ignite.configuration.IgniteConfiguration#getIncludeEventTypes()} method in Ignite configuration. Note that certain |
| * events are required for Ignite's internal operations and such events will still be generated but not stored by |
| * event storage SPI if they are disabled in Ignite configuration. |
| * |
| * @see EventType#EVT_CONSISTENCY_VIOLATION |
| */ |
| public class CacheConsistencyViolationEvent<K, V> extends EventAdapter { |
| /** Serial version UID. */ |
| private static final long serialVersionUID = 0L; |
| |
| /** Represents original values of entries that were affected by a cache operation.*/ |
| final Map<UUID /*Node*/, Map<K,V>> originalEntries; |
| |
| /** Collection of repaired entries. */ |
| final Map<K,V> repairedEntries; |
| |
| /** |
| * Creates a new instance of CacheConsistencyViolationEvent. |
| * |
| * @param node Local node. |
| * @param msg Event message. |
| * @param originalEntries Collection of original entries affected by a cache operation. |
| * @param repairedEntries Collection of repaired entries. |
| */ |
| public CacheConsistencyViolationEvent( |
| ClusterNode node, |
| String msg, |
| Map<UUID, Map<K, V>> originalEntries, |
| Map<K, V> repairedEntries) { |
| super(node, msg, EVT_CONSISTENCY_VIOLATION); |
| |
| this.originalEntries = originalEntries; |
| this.repairedEntries = repairedEntries; |
| } |
| |
| /** |
| * Returns a mapping node ids to a collection of original entries affected by a cache operation. |
| * @return Collection of original entries. |
| */ |
| public Map<UUID, Map<K, V>> getEntries() { |
| return originalEntries; |
| } |
| |
| /** |
| * Returns a collection of repaired entries. |
| * @return Collection of repaired entries. |
| */ |
| public Map<K, V> getRepairedEntries() { |
| return repairedEntries; |
| } |
| } |