public String render ( ) { StringBuilder query = new StringBuilder ( ) ; if ( ! select . isEmpty ( ) ) { query . append ( "SELECT " ) ; query . append ( StringUtils . join ( select . items ) ) ; } if ( ! deleteFrom . isEmpty ( ) ) { query . append ( "DELETE FROM " ) ; query . append ( deleteFrom . item ) ; } if ( ! update . isEmpty ( ) ) { query . append ( "UPDATE " ) ; query . append ( update . item ) ; if ( ! set . isEmpty ( ) ) { query . append ( " SET " ) ; query . append ( StringUtils . join ( set . items ) ) ; } } if ( ! from . isEmpty ( ) ) { query . append ( " FROM " ) ; query . append ( StringUtils . join ( from . items ) ) ; } if ( ! where . isEmpty ( ) ) { query . append ( " WHERE " ) ; query . append ( where . render ( ) ) ; } if ( ! group . isEmpty ( ) ) { query . append ( " GROUP BY " ) ; query . append ( StringUtils . join ( group . items ) ) ; } if ( order . isEmpty ( ) == false ) { query . append ( " ORDER BY " ) ; query . append ( StringUtils . join ( order . items ) ) ; } return query . toString ( ) ; }
Renders this object as JPQL query string .