Object getValue()

in HSQL/src/org/hsqldb1/SetFunction.java [208:295]
69 lines of code
33 McCabe index (conditional complexity)

    Object getValue() throws HsqlException {

        if (setType == Expression.COUNT) {
            return ValuePool.getInt(count);
        }

        if (count == 0) {
            return null;
        }

        switch (setType) {

            case Expression.AVG : {
                switch (type) {

                    case Types.TINYINT :
                    case Types.SMALLINT :
                    case Types.INTEGER :
                        return new Long(currentLong / count);

                    case Types.BIGINT : {
                        long value = getLongSum().divide(
                            BigInteger.valueOf(count)).longValue();

                        return new Long(value);
                    }
                    case Types.REAL :
                    case Types.FLOAT :
                    case Types.DOUBLE :
                        return new Double(currentDouble / count);

                    case Types.NUMERIC :
                    case Types.DECIMAL :
                        return currentBigDecimal.divide(new BigDecimal(count),
                                                        BigDecimal.ROUND_DOWN);

                    default :
                        throw Trace.error(Trace.SUM_OF_NON_NUMERIC);
                }
            }
            case Expression.SUM : {
                switch (type) {

                    case Types.TINYINT :
                    case Types.SMALLINT :
                    case Types.INTEGER :
                        return new Long(currentLong);

                    case Types.BIGINT :
                        return new BigDecimal(getLongSum());

                    case Types.REAL :
                    case Types.FLOAT :
                    case Types.DOUBLE :
                        return new Double(currentDouble);

                    case Types.NUMERIC :
                    case Types.DECIMAL :
                        return currentBigDecimal;

                    default :
                        throw Trace.error(Trace.SUM_OF_NON_NUMERIC);
                }
            }
            case Expression.MIN :
            case Expression.MAX :
                return currentValue;

            case Expression.EVERY :
                return every ? Boolean.TRUE
                             : Boolean.FALSE;

            case Expression.SOME :
                return some ? Boolean.TRUE
                            : Boolean.FALSE;

            case Expression.STDDEV_POP :
            case Expression.STDDEV_SAMP :
                return getStdDev();

            case Expression.VAR_POP :
            case Expression.VAR_SAMP :
                return getVariance();

            default :
                throw Trace.error(Trace.INVALID_CONVERSION);
        }
    }