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]

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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

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Options #

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

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Return Value #

Returns the MemoryStorage object to allow chaining.

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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