SDK
SDK Java v2.x
1

setnx #

Sets a value on a key, only if it does not already exist.

[Redis documentation]


setnx(key, value, [options], [callback]) #

Arguments Type Description
key string Key identifier
value string Value to store
options JSON Object Optional parameters
callback function Callback

Options #

Option Type Description Default
queuable boolean Make this request queuable or not true

Return Value #

Returns the MemoryStorage object to allow chaining.


Callback Response #

Returns a boolean specifying if the operation was successful or not.

Usage #

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kuzzle.memoryStorage.setnx("key", "value", new ResponseListener<Boolean>() {
  @Override
  public void onSuccess(Boolean status) {
    // callback called once the action has completed
  }
  @Override
  public void onError(JSONObject error) {
  }
});

Callback response:

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true