| /* |
| * 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.geode.redis.internal.executor; |
| |
| import java.util.concurrent.Callable; |
| |
| |
| /** |
| * Allows users to "stripe" their execution in such a way that all tasks belonging to one stripe are |
| * executed in order. A stripe is associated with an Object called the "stripeId". |
| * It is up to the implementor of this interface to decide how to do this association. |
| * For example it could use the hashCode of the stripeId or use the equals method. |
| * Work submitted for the same stripe is guaranteed to be executed sequentially. |
| */ |
| public interface StripedExecutor { |
| /** |
| * Executes, at some time in the future, |
| * the given callable by invoking "call" on it and then returning the result. |
| * |
| * @param stripeId defines the "stripe" |
| * @param callable the unit of work to do sequentially. May be called after run returns. |
| */ |
| public <T> T execute(Object stripeId, |
| Callable<T> callable); |
| |
| int compareStripes(Object object1, Object object2); |
| } |