jpel.language
Class ExpressionNumber

java.lang.Object
  |
  +--jpel.language.AbstractExpression
        |
        +--jpel.language.ExpressionObject
              |
              +--jpel.language.ExpressionNumber

All Implemented Interfaces:

ComparableExpression, Expression, java.io.Serializable, StringableExpression

public class ExpressionNumber

extends ExpressionObject

implements StringableExpression, ComparableExpression

Representa o tipo numérico da linguagem. Tipos aceitos: byte, short, int, long, float, double.

See Also:

Serialized Form

Field Summary

static int	BYTE
static int	DOUBLE
static int	FLOAT
static int	INT
static int	LONG
static jpel.language.ExpressionNumber	MAX_BYTE
static jpel.language.ExpressionNumber	MAX_DOUBLE
static jpel.language.ExpressionNumber	MAX_FLOAT
static jpel.language.ExpressionNumber	MAX_INT
static jpel.language.ExpressionNumber	MAX_LONG
static jpel.language.ExpressionNumber	MAX_SHORT
static jpel.language.ExpressionNumber	MIN_BYTE
static jpel.language.ExpressionNumber	MIN_DOUBLE
static jpel.language.ExpressionNumber	MIN_FLOAT
static jpel.language.ExpressionNumber	MIN_INT
static jpel.language.ExpressionNumber	MIN_LONG
static jpel.language.ExpressionNumber	MIN_SHORT
static int	SHORT

Constructor Summary

ExpressionNumber(byte value)

ExpressionNumber(java.lang.Byte value)

ExpressionNumber(double value)

ExpressionNumber(java.lang.Double value)

ExpressionNumber(float value)

ExpressionNumber(java.lang.Float value)

ExpressionNumber(int value)

ExpressionNumber(java.lang.Integer value)

ExpressionNumber(long value)

ExpressionNumber(java.lang.Long value)

ExpressionNumber(short value)

ExpressionNumber(java.lang.Short value)

ExpressionNumber(java.lang.String value)

Method Summary

jpel.language.ExpressionNumber	add(jpel.language.ExpressionNumber number)
java.lang.String	asString() Fornece uma representação em String da expressão.
int	bestMatch(jpel.language.ExpressionNumber number)
boolean	canBeByte()
boolean	canBeDouble()
boolean	canBeFloat()
boolean	canBeInt()
boolean	canBeLong()
boolean	canBeShort()
int	compareTo(jpel.language.ComparableExpression expression) Indicates a order relation throught instances of the same type.
jpel.language.ExpressionNumber	div(jpel.language.ExpressionNumber number)
byte	getByte()
java.lang.Object	getData(java.lang.Class type) Retorna o dado associado à expressão.
double	getDouble()
float	getFloat()
int	getInt()
long	getLong()
short	getShort()
boolean	isByte()
boolean	isDouble()
boolean	isFloat()
boolean	isInt()
boolean	isLong()
boolean	isShort()
jpel.language.ExpressionNumber	mul(jpel.language.ExpressionNumber number)
jpel.language.ExpressionNumber	neg()
jpel.language.ExpressionNumber	rem(jpel.language.ExpressionNumber number)
jpel.language.ExpressionNumber	sub(jpel.language.ExpressionNumber number)
java.lang.String	toString()

Methods inherited from class jpel.language.ExpressionObject

equivalent, eval, freeVariable, rebuild

Methods inherited from class jpel.language.AbstractExpression

createClone, getData, getSource, getType, setData, setSource, setType

Methods inherited from class java.lang.Object

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

Methods inherited from interface jpel.language.Expression

createClone, equivalent, eval, freeVariable, getData, getSource, getType, rebuild, setData, setSource, setType

Field Detail

BYTE

public static final int BYTE

See Also:

Constant Field Values

SHORT

public static final int SHORT

See Also:

Constant Field Values

INT

public static final int INT

See Also:

Constant Field Values

LONG

public static final int LONG

See Also:

Constant Field Values

FLOAT

public static final int FLOAT

See Also:

Constant Field Values

DOUBLE

public static final int DOUBLE

See Also:

Constant Field Values

MIN_BYTE

public static final jpel.language.ExpressionNumber MIN_BYTE

MAX_BYTE

public static final jpel.language.ExpressionNumber MAX_BYTE

MIN_SHORT

public static final jpel.language.ExpressionNumber MIN_SHORT

MAX_SHORT

public static final jpel.language.ExpressionNumber MAX_SHORT

MIN_INT

public static final jpel.language.ExpressionNumber MIN_INT

MAX_INT

public static final jpel.language.ExpressionNumber MAX_INT

MIN_LONG

public static final jpel.language.ExpressionNumber MIN_LONG

MAX_LONG

public static final jpel.language.ExpressionNumber MAX_LONG

MIN_FLOAT

public static final jpel.language.ExpressionNumber MIN_FLOAT

MAX_FLOAT

public static final jpel.language.ExpressionNumber MAX_FLOAT

MIN_DOUBLE

public static final jpel.language.ExpressionNumber MIN_DOUBLE

MAX_DOUBLE

public static final jpel.language.ExpressionNumber MAX_DOUBLE

Constructor Detail

ExpressionNumber

public ExpressionNumber(byte value)

ExpressionNumber

public ExpressionNumber(java.lang.Byte value)

ExpressionNumber

public ExpressionNumber(short value)

ExpressionNumber

public ExpressionNumber(java.lang.Short value)

ExpressionNumber

public ExpressionNumber(int value)

ExpressionNumber

public ExpressionNumber(java.lang.Integer value)

ExpressionNumber

public ExpressionNumber(long value)

ExpressionNumber

public ExpressionNumber(java.lang.Long value)

ExpressionNumber

public ExpressionNumber(float value)

ExpressionNumber

public ExpressionNumber(java.lang.Float value)

ExpressionNumber

public ExpressionNumber(double value)

ExpressionNumber

public ExpressionNumber(java.lang.Double value)

ExpressionNumber

public ExpressionNumber(java.lang.String value)

Method Detail

getData

public java.lang.Object getData(java.lang.Class type)

Description copied from interface: Expression

Retorna o dado associado à expressão.

Specified by:

getData in interface Expression

Overrides:

getData in class AbstractExpression

Parameters:

type - O tipo do objeto desejado.

Returns:

O objeto embutido dentro de uma expressão se ele for do tipo solicitado, null, caso contrário.

isByte

public boolean isByte()

canBeByte

public boolean canBeByte()

getByte

public byte getByte()

isShort

public boolean isShort()

canBeShort

public boolean canBeShort()

getShort

public short getShort()

isInt

public boolean isInt()

canBeInt

public boolean canBeInt()

getInt

public int getInt()

isLong

public boolean isLong()

canBeLong

public boolean canBeLong()

getLong

public long getLong()

isFloat

public boolean isFloat()

canBeFloat

public boolean canBeFloat()

getFloat

public float getFloat()

isDouble

public boolean isDouble()

canBeDouble

public boolean canBeDouble()

getDouble

public double getDouble()

bestMatch

public int bestMatch(jpel.language.ExpressionNumber number)

asString

public java.lang.String asString()

Description copied from interface: StringableExpression

Fornece uma representação em String da expressão.

Specified by:

asString in interface StringableExpression

Returns:

A String correspondente.

compareTo

public int compareTo(jpel.language.ComparableExpression expression)
              throws BadTypedException

Description copied from interface: ComparableExpression

Indicates a order relation throught instances of the same type.

Specified by:

compareTo in interface ComparableExpression

Returns:

-1 if it comes before then the give expression, 0 if is in the same leve, and 1 otherwise.

Throws:

BadTypedException - When a wrong comparation type is passed.

toString

public java.lang.String toString()

Overrides:

toString in class AbstractExpression

add

public jpel.language.ExpressionNumber add(jpel.language.ExpressionNumber number)

sub

public jpel.language.ExpressionNumber sub(jpel.language.ExpressionNumber number)

mul

public jpel.language.ExpressionNumber mul(jpel.language.ExpressionNumber number)

div

public jpel.language.ExpressionNumber div(jpel.language.ExpressionNumber number)

rem

public jpel.language.ExpressionNumber rem(jpel.language.ExpressionNumber number)

neg

public jpel.language.ExpressionNumber neg()