org.jopendocument.util.convertor
Class NumberConvertor<T extends java.lang.Number,U extends java.lang.Number>

java.lang.Object
  org.jopendocument.util.convertor.NumberConvertor<T,U>

All Implemented Interfaces:

ValueConvertor<T,U>

public abstract class NumberConvertor<T extends java.lang.Number,U extends java.lang.Number>
extends java.lang.Object
implements ValueConvertor<T,U>

Nested Class Summary

static class	NumberConvertor.OverflowException
static class	NumberConvertor.RoundingException

Field Summary

static NumberConvertor<java.lang.Integer,java.lang.Long>	INT_TO_LONG
static java.math.BigDecimal	MAX_DOUBLE
static java.math.BigDecimal	MAX_FLOAT
static java.math.BigDecimal	MIN_DOUBLE
static java.math.BigDecimal	MIN_FLOAT
static NumberConvertor<java.lang.Short,java.lang.Integer>	SHORT_TO_INT

Constructor Summary

NumberConvertor()

Method Summary

static <N extends java.lang.Number> N	convert(java.lang.Number n, java.lang.Class<N> clazz) Convert from one class of Number to another.
static <N extends java.lang.Number> N	convertExact(java.lang.Number n, java.lang.Class<N> clazz)
static <N1 extends java.lang.Number,N2 extends java.lang.Number> NumberConvertor<N1,N2>	create(java.lang.Class<N1> c1, java.lang.Class<N2> c2, boolean exact)
static java.math.BigDecimal	toBigDecimal(java.lang.Number n)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jopendocument.util.convertor.ValueConvertor

convert, unconvert

Field Detail

INT_TO_LONG

public static final NumberConvertor<java.lang.Integer,java.lang.Long> INT_TO_LONG

SHORT_TO_INT

public static final NumberConvertor<java.lang.Short,java.lang.Integer> SHORT_TO_INT

MAX_FLOAT

public static final java.math.BigDecimal MAX_FLOAT

MIN_FLOAT

public static final java.math.BigDecimal MIN_FLOAT

MAX_DOUBLE

public static final java.math.BigDecimal MAX_DOUBLE

MIN_DOUBLE

public static final java.math.BigDecimal MIN_DOUBLE

Constructor Detail

NumberConvertor

public NumberConvertor()

Method Detail

create

public static final <N1 extends java.lang.Number,N2 extends java.lang.Number> NumberConvertor<N1,N2> create(java.lang.Class<N1> c1,
                                                                                                            java.lang.Class<N2> c2,
                                                                                                            boolean exact)

convert

public static <N extends java.lang.Number> N convert(java.lang.Number n,
                                                     java.lang.Class<N> clazz)

Convert from one class of Number to another. Necessary since new Integer(123) isn't equal to new Long(123).

Type Parameters:

N - type of desired Number.

Parameters:

n - the instance to convert, e.g. new Integer(123).

clazz - desired class of Number, e.g. Long.class.

Returns:

n as an instance of clazz, e.g. new Long(123).

toBigDecimal

public static java.math.BigDecimal toBigDecimal(java.lang.Number n)

convertExact

public static <N extends java.lang.Number> N convertExact(java.lang.Number n,
                                                          java.lang.Class<N> clazz)
                                               throws NumberConvertor.OverflowException,
                                                      NumberConvertor.RoundingException

Throws:

NumberConvertor.OverflowException

NumberConvertor.RoundingException