msetnx

Sets the provided keys to their respective values, only if they do not exist. If a key exists, then the whole operation is aborted and no key is set.

[Redis documentation]


msetnx(entries, [options], [callback])

Arguments Type Description
entries array List of objects each containing the key identifier to add with its associated value.
Properties: key (key identifier), value (associated value)
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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JSONObject[] entries = new JSONObject[]{
  new JSONObject().put("key", "key1").put("value", "foo"),
  new JSONObject().put("key", "key2").put("value", "bar"),
  new JSONObject().put("key", "...").put("value", "...")
};

kuzzle.memoryStorage.msetnx(entries, 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