Package mondrian.olap.type

Class DecimalType

java.lang.Object

mondrian.olap.type.ScalarType

mondrian.olap.type.NumericType

mondrian.olap.type.DecimalType

All Implemented Interfaces:

Type

public class DecimalType
extends NumericType

Subclass of NumericType which guarantees fixed number of decimal places. In particular, a decimal with zero scale is an integer.

Since:

May 3, 2005

Author:

jhyde

Constructor Summary

Constructors

Constructor	Description
DecimalType(int precision, int scale)	Creates a decimal type with precision and scale.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	getPrecision()	Returns the maximum number of decimal digits which a value of this type can have.
int	getScale()	Returns the number of digits to the right of the decimal point.

Methods inherited from class mondrian.olap.type.NumericType

isInstance

Methods inherited from class mondrian.olap.type.ScalarType

computeCommonType, getArity, getDimension, getHierarchy, getLevel, hashCode, toString, usesDimension, usesHierarchy

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

DecimalType

public DecimalType(int precision,
 int scale)

Creates a decimal type with precision and scale.

Examples:

• 123.45 has precision 5, scale 2.
• 12,345,000 has precision 5, scale -3.

The largest value is 10 ^ (precision - scale). Hence the largest DECIMAL(5, -3) value is 10 ^ 8.

Parameters:

precision - Maximum number of decimal digits which a value of this type can have. Must be greater than zero. Use Integer.MAX_VALUE if the precision is unbounded.

scale - Number of digits to the right of the decimal point.

Method Details

getPrecision

public int getPrecision()

Returns the maximum number of decimal digits which a value of this type can have.

Returns:

precision of this type

getScale

public int getScale()

Returns the number of digits to the right of the decimal point.

Returns:

scale of this type

equals

public boolean equals(Object obj)

Overrides:

equals in class NumericType