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Diffstat (limited to 'qpid/java/client/src/main/java/org/apache/qpid/client/failover/FailoverSupport.java')
-rw-r--r-- | qpid/java/client/src/main/java/org/apache/qpid/client/failover/FailoverSupport.java | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/failover/FailoverSupport.java b/qpid/java/client/src/main/java/org/apache/qpid/client/failover/FailoverSupport.java new file mode 100644 index 0000000000..ef2e7e1d65 --- /dev/null +++ b/qpid/java/client/src/main/java/org/apache/qpid/client/failover/FailoverSupport.java @@ -0,0 +1,47 @@ +/* + * 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; +} |