text: public static DVConstraint createTimeConstraint(int comparisonOperator, String expr1, String expr2) {if (expr1 == null) {throw new IllegalArgumentException("expr1 must be supplied");}OperatorType.validateSecondArg(comparisonOperator, expr1);String formula1 = getFormulaFromTextExpression(expr1);Double value1 = formula1 == null ? convertTime(expr1) : null;String formula2 = getFormulaFromTextExpression(expr2);Double value2 = formula2 == null ? convertTime(expr2) : null;return new DVConstraint(ValidationType.TIME, comparisonOperator, formula1, formula2, value1, value2, null);}