zcard #
Returns the number of elements held by a sorted set.
zcard(key, [options], callback) #
Arguments | Type | Description |
---|---|---|
key | string | Key identifier |
options | JSON Object | Optional parameters |
callback | function | Callback |
Options #
Option | Type | Description | Default |
---|---|---|---|
queuable | boolean | Make this request queuable or not | true |
Callback Response #
Returns an integer containing the number of elements in a sorted set.
Usage #
kuzzle.memoryStorage.zcard("key", new ResponseListener<Long>() {
@Override
public void onSuccess(int count) {
// callback called once the action has completed
}
@Override
public void onError(JSONObject error) {
}
});
Callback response:
4
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