hexists

Checks if a field exists in a hash.

[Redis documentation]


hexists(key, field, [options], callback)

Arguments Type Description
key string Key identifier
field string Field name
options JSON Object Optional parameters
callback function Callback

Options

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

Callback Response

A boolean value specifying if the field exists or not.

Usage

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kuzzle.memoryStorage.hexists("key", "field1", new ResponseListener<Boolean>() {
  @Override
  public void onSuccess(Boolean exists) {
    // callback called once the action has completed
  }

  @Override
  public void onError(JSONObject error) {
  }
});

Callback response:

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true