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/*
* 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><table id="crc"><caption>CRC Card</caption>
* <tr><th> Responsibilities
* <tr><td> Perform a fail-over protected operation with handling for fail-over conditions.
* </table>
*
* @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;
}
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