Examples of org.apache.derby.iapi.types.SQLDecimal

org.apache.derby.iapi.types.SQLDecimal
SQLDecimal satisfies the DataValueDescriptor interfaces (i.e., OrderableDataType). It implements a numeric/decimal column, e.g. for * storing a column value; it can be specified when constructed to not allow nulls. Nullability cannot be changed after construction, as it affects the storage size and mechanism.
Because OrderableDataType is a subtype of DataType, SQLDecimal can play a role in either a DataType/Row or a OrderableDataType/Row, interchangeably.
We assume the store has a flag for nullness of the value, and simply return a 0-length array for the stored form when the value is null. @author jamie

            return TypeId.SMALLINT_PRECISION;
        case Types.BIGINT:
            return TypeId.LONGINT_PRECISION;
        case Types.DECIMAL:
            if (val != null) {
                SQLDecimal constantDecimal = new SQLDecimal((BigDecimal) val);
                return constantDecimal.getDecimalValuePrecision();
            } else {
                return TypeId.DECIMAL_PRECISION;
            }
        case Types.DOUBLE:
            return TypeId.DOUBLE_PRECISION;

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            return TypeId.SMALLINT_SCALE;
        case Types.BIGINT:
            return TypeId.LONGINT_SCALE;
        case Types.DECIMAL:
            if (val != null) {
                SQLDecimal constantDecimal = new SQLDecimal((BigDecimal) val);
                return constantDecimal.getDecimalValueScale();
            } else {
                return TypeId.DECIMAL_SCALE;
            }
        case Types.DOUBLE:
            return TypeId.DOUBLE_SCALE;

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           return val != null ? TypeId.SMALLINT_MAXWIDTH : 0;
       case Types.BIGINT:
           return val != null ? TypeId.LONGINT_MAXWIDTH: 0;
       case Types.DECIMAL:
            if (val != null) {
               SQLDecimal constantDecimal = new SQLDecimal((BigDecimal) val);
               int precision = constantDecimal.getDecimalValuePrecision();
               int scal = constantDecimal.getDecimalValueScale();
               /* be consistent with our convention on maxwidth, see also
                * exactNumericType(), otherwise we get format problem, b 3923
                */
               return DataTypeUtilities.computeMaxWidth(precision, scal);
            } else {

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            break;
       case Types.BIGINT:
           setValue(new SQLLongint((Long)value));
            break;
       case Types.DECIMAL:
           setValue(new SQLDecimal((BigDecimal)value));
            break;
       case Types.DOUBLE:
           setValue(new SQLDouble((Double)value));
            break;
       case Types.REAL:

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           typeName.equals(TypeId.SMALLINT_NAME)) {
      newValue = new org.apache.derby.iapi.types.SQLInteger();
    } else if (typeName.equals(TypeId.REAL_NAME)) {
      newValue = new org.apache.derby.iapi.types.SQLDouble();
    } else {
            newValue = new SQLDecimal();
    }
    
    newValue.setValue(value);
    value = newValue;

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Related Classes of org.apache.derby.iapi.types.SQLDecimal

org.apache.derby.impl.sql.compile.NumericConstantNode

org.apache.derby.impl.sql.execute.AvgAggregator

java.sql.ResultSetMetaData

java.math.BigInteger

java.math.BigDecimal

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