code: private void initiateJPQLObject(final String jpaQuery) {
          JPQLGrammar jpqlGrammar = EclipseLinkJPQLGrammar2_4.instance();
          this.jpqlExpression = new JPQLExpression(jpaQuery, jpqlGrammar, "ql_statement", true);
          setKunderaQueryTypeObject();
      }
docs: Initiate jpql object.
  
  @param jpaQuery
  the jpa query