/**
  * delete a list of beans.
  *
  * @param beans the beans
  * @param session the Session
  * @param consistency the consistency Level on Cassandra
  * @param <T> th kind of object
  * @return if execute with Sucess
  */
 public <T> boolean delete(Iterable<T> beans, Session session, ConsistencyLevel consistency) {
   return deleteQuery.deleteByKey(beans, session, consistency);
 }
 /**
  * delete on object from cassandra by Key.
  *
  * @param session the Session
  * @param consistency the consistency Level
  * @param entity the entity
  * @param <K> the keys
  * @param keys the keys values
  * @param <T> the kind of object
  * @return if execute the command
  */
 public <K, T> boolean deleteByKey(
     Iterable<K> keys, Class<T> entity, Session session, ConsistencyLevel consistency) {
   deleteQuery.deleteByKey(keys, entity, session, consistency);
   return true;
 }
 /**
  * delete on object from cassandra by Key.
  *
  * @param bean the kind of object
  * @param session the Session
  * @param <T> kind of object
  * @param consistency the consistency level
  * @return if execute the command
  */
 public <T> boolean delete(T bean, Session session, ConsistencyLevel consistency) {
   return deleteQuery.deleteByKey(bean, session, consistency);
 }
 /**
  * delete on object from cassandra by Key.
  *
  * @param key the key
  * @param bean the kind of object
  * @param session the Session
  * @param consistency the consistency Level
  * @return if execute the command
  */
 public boolean deleteByKey(
     Object key, Class<?> bean, Session session, ConsistencyLevel consistency) {
   return deleteQuery.deleteByKey(key, bean, session, consistency);
 }