| /* |
| * 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.internal.processors.cache.persistence.metastorage.pendingtask; |
| |
| import java.io.Serializable; |
| import org.apache.ignite.internal.GridKernalContext; |
| import org.apache.ignite.internal.IgniteInternalFuture; |
| |
| /** |
| * Durable task that should be used to do long operations (e.g. index deletion) in background. |
| */ |
| public interface DurableBackgroundTask extends Serializable { |
| /** |
| * Getting the name of the task to identify it. |
| * Also used as part of a key for storage in a MetaStorage. |
| * |
| * @return Task name. |
| */ |
| String name(); |
| |
| /** |
| * Canceling the task. |
| */ |
| void cancel(); |
| |
| /** |
| * Asynchronous task execution. |
| * |
| * Completion of the task execution should be only with the {@link DurableBackgroundTaskResult result}. |
| * |
| * @param ctx Kernal context. |
| * @return Future of the tasks. |
| */ |
| IgniteInternalFuture<DurableBackgroundTaskResult> executeAsync(GridKernalContext ctx); |
| } |