public <T> ListenableFuture<Void> saveAsync(final T entity, final Mapper.Option... options) {
    Class entityClass = entity.getClass();
    Mapper mapper = mapper(entityClass);
    return mapper.saveAsync(entity, options);
  }
public <T> ListenableFuture<Void> saveAsync(final T entity, final Mapper.Option... options) {
    Class entityClass = entity.getClass();
    Mapper mapper = mapper(entityClass);
    return mapper.saveAsync(entity, options);
  }
public < T > ListenableFuture < Void > saveAsync ( final T entity , final Mapper . Option ... options ) { Class entityClass = entity . getClass ( ) ; Mapper mapper = mapper ( entityClass ) ; return mapper . saveAsync ( entity , options ) ; }
Save an entity.

@param entity Entity to save.
@param options Options.
@return An empty listenable future.
Save an entity .