/**
  * Creates a new index
  *
  * <p>{@sample.xml ../../../doc/mongo-connector.xml.sample mongo:create-index}
  *
  * @param collection the name of the collection where the index will be created
  * @param field the name of the field which will be indexed
  * @param order the indexing order
  */
 @Processor
 public void createIndex(
     String collection, String field, @Optional @Default("ASC") IndexOrder order) {
   client.createIndex(collection, field, order);
 }