| /* |
| * 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.qpid.client.failover; |
| |
| /** |
| * FailoverSupport defines an interface for different types of fail-over handlers, that provide different types of |
| * behaviour for handling fail-overs during operations that can be interrupted by the fail-over process. For example, |
| * the support could automatically retry once the fail-over process completes, could prevent an operation from being |
| * started whilst fail-over is running, or could quietly abandon the operation or raise an exception, and so on. |
| * <p> |
| * TODO Continuation, extend some sort of re-usable Continuation interface, which might look very like this one. |
| */ |
| public interface FailoverSupport<T, E extends Exception> |
| { |
| /** |
| * Delegates to another continuation which is to be provided with fail-over handling. |
| * |
| * @return The return value from the delegated to continuation. |
| * |
| * @throws E Any exception that the delegated to continuation may raise. |
| */ |
| public T execute() throws E; |
| } |