X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=jar%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fmusic%2Flockingservice%2FZooKeeperOperation.java;fp=jar%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fmusic%2Flockingservice%2FZooKeeperOperation.java;h=7020d14dcb1fc0afdf7c7319ea50219cb64b112b;hb=03ade18ac83ab02ee1ce0d6d43725b96513b4577;hp=0000000000000000000000000000000000000000;hpb=932c9e80911645798712a77e4cee9230a4b59408;p=music.git

diff --git a/jar/src/main/java/org/onap/music/lockingservice/ZooKeeperOperation.java b/jar/src/main/java/org/onap/music/lockingservice/ZooKeeperOperation.java
new file mode 100644
index 00000000..7020d14d
--- /dev/null
+++ b/jar/src/main/java/org/onap/music/lockingservice/ZooKeeperOperation.java
@@ -0,0 +1,42 @@
+/*
+ * ============LICENSE_START==========================================
+ * org.onap.music
+ * ===================================================================
+ *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
+ *  Licensed 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.
+ * 
+ * ============LICENSE_END=============================================
+ * ====================================================================
+ */
+package org.onap.music.lockingservice;
+
+import org.apache.zookeeper.KeeperException;
+
+/**
+ * A callback object which can be used for implementing retry-able operations in the 
+ * {@link org.onap.music.lockingservice.ProtocolSupport} class
+ *
+ */
+public interface ZooKeeperOperation {
+    
+    /**
+     * Performs the operation - which may be involved multiple times if the connection
+     * to ZooKeeper closes during this operation
+     *
+     * @return the result of the operation or null
+     * @throws KeeperException FILL IN
+     * @throws InterruptedException FILL IN
+     */
+    public boolean execute() throws KeeperException, InterruptedException;
+}