Acknowledging a watch enables you to manually throttle execution of a watch’s actions. A watch can be acknowledged through the following request:

AckWatchRequest request = new AckWatchRequest("my_watch_id", 
    "logme", "emailme"); 

The returned AckWatchResponse contains the new status of the requested watch:

WatchStatus watchStatus = response.getStatus();
ActionStatus actionStatus = watchStatus.actionStatus("logme"); 
AckStatus.State ackState = actionStatus.ackStatus().state(); 

When executing a AckWatchRequest in the following manner, the client waits for the AckWatchResponse to be returned before continuing with code execution:

AckWatchResponse response = client.watcher().ackWatch(request, RequestOptions.DEFAULT);

Executing a AckWatchRequest can also be done in an asynchronous fashion so that the client can return directly. Users need to specify how the response or potential failures will be handled by passing the request and a listener to the asynchronous ack-watch method:

client.watcher().ackWatchAsync(request, RequestOptions.DEFAULT, listener); 

The asynchronous method does not block and returns immediately. Once it is completed the ActionListener is called back using the onResponse method if the execution successfully completed or using the onFailure method if it failed.

A typical listener for ack-watch looks like:

ActionListener<AckWatchResponse> listener = new ActionListener<AckWatchResponse>() {
    @Override
    public void onResponse(AckWatchResponse response) {
        
    }

    @Override
    public void onFailure(Exception e) {
        
    }
};