lpushx #

Prepends the specified value to a list, only if the key already exists and if it holds a list.

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

Arguments	Type	Description
`key`	string	Key identifier
`value`	array	Value to add at the beginning of the list
`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 an integer containing the updated number of items in the list.

Usage #

kuzzle.memoryStorage.lpushx("key", "foo", new ResponseListener<Long>() {
  @Override
  public void onSuccess(int count) {
    // callback called once the action has completed
  }
  @Override
  public void onError(JSONObject error) {
  }
});

Callback response:

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