com.sun.jdo.spi.persistence.support.sqlstore.query.util.type

Class MathType

java.lang.Object

com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.Type

com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.ClassType

com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.MathType

All Implemented Interfaces:

NumberType

public class MathType
extends ClassType
implements NumberType

This class represents the types java.math.BigDecimal and java.math.BigInteger.

Version:

0.1

Author:

Michael Bouschen

Field Summary

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.ClassType

fieldInfos, pce, typetab

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.Type

clazz, enumType, name

Constructor Summary

Constructors

Constructor and Description
MathType(String name, Class clazz, int enumType, TypeTable typetab)

Method Summary

Modifier and Type	Method and Description
Number	getValue(Number value) Converts the specified value into a value of this numeric type.
boolean	isOrderable() A numeric wrapper class type defines an ordering.
Number	negate(Number value) Returns -value.

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.ClassType

getFieldInfo, getFieldInfos, getKeyFieldNames, isCompatibleWith, isPersistenceCapable

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.Type

equals, getEnumType, getJavaClass, getName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MathType

public MathType(String name,
                Class clazz,
                int enumType,
                TypeTable typetab)

Method Detail

isOrderable

public boolean isOrderable()

A numeric wrapper class type defines an ordering.

Overrides:

isOrderable in class ClassType

Returns:

true if an order is defined for this; false otherwise.

getValue

public Number getValue(Number value)

Converts the specified value into a value of this numeric type. E.g. an Integer is converted into a BigDecimal, if this represents the type BigDecimal.

Specified by:

getValue in interface NumberType

Parameters:

value - value to be converted

Returns:

converted value

negate

public Number negate(Number value)

Returns -value.

Specified by:

negate in interface NumberType

Parameters:

value - value to be negated

Returns:

-value