jpel.language
Class ExpressionBoolean

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

All Implemented Interfaces:

ComparableExpression, Expression, java.io.Serializable, StringableExpression

public class ExpressionBoolean

extends ExpressionObject

implements StringableExpression, ComparableExpression

Representa o tipo booleano da linguagem.

See Also:

Serialized Form

Field Summary

static jpel.language.ExpressionBoolean	FALSE Constante que representa o booleano "falso".
static jpel.language.ExpressionBoolean	TRUE Constante que representa o booleano "verdadeiro".

Method Summary

java.lang.String	asString() Fornece uma representação em String da expressão.
int	compareTo(jpel.language.ComparableExpression expression) Indicates a order relation throught instances of the same type.
boolean	getBoolean()
static jpel.language.ExpressionBoolean	getBoolean(boolean bool)
java.lang.String	toString()

Methods inherited from class jpel.language.ExpressionObject

equivalent, eval, freeVariable, rebuild

Methods inherited from class jpel.language.AbstractExpression

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

Field Detail

TRUE

public static final jpel.language.ExpressionBoolean TRUE

Constante que representa o booleano "verdadeiro".

FALSE

public static final jpel.language.ExpressionBoolean FALSE

Constante que representa o booleano "falso".

Method Detail

getBoolean

public static jpel.language.ExpressionBoolean getBoolean(boolean bool)

getBoolean

public boolean getBoolean()

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