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

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

All Implemented Interfaces:

ValueConvertor<T,U>

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

Nested Class Summary

static class	NumberConvertor.OverflowException
static class	NumberConvertor.RoundingException

Field Summary

static NumberConvertor<Integer,Long>	INT_TO_LONG
static BigDecimal	MAX_DOUBLE
static BigDecimal	MAX_FLOAT
static BigDecimal	MIN_DOUBLE
static BigDecimal	MIN_FLOAT
static NumberConvertor<Short,Integer>	SHORT_TO_INT

Constructor Summary

NumberConvertor()

Method Summary

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

Methods inherited from class java.lang.Object

clone, equals, finalize, 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<Integer,Long> INT_TO_LONG

SHORT_TO_INT

public static final NumberConvertor<Short,Integer> SHORT_TO_INT

MAX_FLOAT

public static final BigDecimal MAX_FLOAT

MIN_FLOAT

public static final BigDecimal MIN_FLOAT

MAX_DOUBLE

public static final BigDecimal MAX_DOUBLE

MIN_DOUBLE

public static final BigDecimal MIN_DOUBLE

Constructor Detail

NumberConvertor

public NumberConvertor()

Method Detail

create

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

convert

public static <N extends Number> N convert(Number n,
                                           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 BigDecimal toBigDecimal(Number n)

convertExact

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

Throws:

NumberConvertor.OverflowException

NumberConvertor.RoundingException