Package org.apache.zookeeper
Interface AsyncCallback.VoidCallback
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- All Superinterfaces:
AsyncCallback
- Enclosing interface:
- AsyncCallback
@Public public static interface AsyncCallback.VoidCallback extends AsyncCallback
This callback doesn't retrieve anything from the node. It is useful for some APIs that doesn't want anything sent back, e.g.ZooKeeper.sync(String, AsyncCallback.VoidCallback, Object).
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.apache.zookeeper.AsyncCallback
AsyncCallback.ACLCallback, AsyncCallback.AllChildrenNumberCallback, AsyncCallback.Children2Callback, AsyncCallback.ChildrenCallback, AsyncCallback.Create2Callback, AsyncCallback.DataCallback, AsyncCallback.EphemeralsCallback, AsyncCallback.MultiCallback, AsyncCallback.StatCallback, AsyncCallback.StringCallback, AsyncCallback.VoidCallback
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidprocessResult(int rc, String path, Object ctx)Process the result of the asynchronous call.
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Method Detail
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processResult
void processResult(int rc, String path, Object ctx)Process the result of the asynchronous call.On success, rc is
KeeperException.Code.OK.On failure, rc is set to the corresponding failure code in
KeeperException.KeeperException.Code.NONODE- The node on given path doesn't exist for some API calls.KeeperException.Code.BADVERSION- The given version doesn't match the node's version for some API calls.KeeperException.Code.NOTEMPTY- the node has children and some API calls cannot succeed, e.g.ZooKeeper.delete(String, int, AsyncCallback.VoidCallback, Object).
- Parameters:
rc- The return code or the result of the call.path- The path that we passed to asynchronous calls.ctx- Whatever context object that we passed to asynchronous calls.- See Also:
ZooKeeper.delete(String, int, AsyncCallback.VoidCallback, Object),ZooKeeper.removeAllWatches(String, Watcher.WatcherType, boolean, AsyncCallback.VoidCallback, Object),ZooKeeper.removeWatches(String, Watcher, Watcher.WatcherType, boolean, AsyncCallback.VoidCallback, Object),ZooKeeper.sync(String, AsyncCallback.VoidCallback, Object)
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