/**
* Builds a reusable query object for counting rows (Query objects can be executed more
* efficiently than creating a QueryBuilder for each execution.
*/
public CountQuery<T> buildCount() {
String tablename = dao.getTablename();
String baseSql = SqlUtils.createSqlSelectCountStar(tablename, tablePrefix);
StringBuilder builder = new StringBuilder(baseSql);
appendJoinsAndWheres(builder, tablePrefix);
String sql = builder.toString();
checkLog(sql);
return CountQuery.create(dao, sql, values.toArray());
}
/**
* count the entities on column families.
*
* @param bean the bean
* @param session the session
* @param consistency the consistency level
* @param <T> kind of class
* @return the number of entities on column families
*/
public <T> Long count(Class<T> bean, Session session, ConsistencyLevel consistency) {
return countQuery.count(bean, session, consistency);
}
