com.caucho.el

Class BooleanLiteral

java.lang.Object

javax.el.Expression

javax.el.ValueExpression

com.caucho.el.Expr

com.caucho.el.AbstractBooleanExpr

com.caucho.el.BooleanLiteral

All Implemented Interfaces:

java.io.Serializable

public class BooleanLiteral
extends AbstractBooleanExpr

A boolean literal expression.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.caucho.el.Expr

L, log

Constructor Summary

Constructors

Constructor and Description
BooleanLiteral(boolean value) Creates a new boolean literal.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Returns true for equal strings.
boolean	evalBoolean(ELContext env) Evaluate the expression as an boolean
boolean	isConstant() Returns true if the expression is constant.
void	printCreate(WriteStream os) Prints the Java code to recreate the BooleanLiteral.
java.lang.String	toString() Returns a readable representation of the expr.

Methods inherited from class com.caucho.el.AbstractBooleanExpr

evalDouble, evalLong, evalString, getValue, print

Methods inherited from class com.caucho.el.Expr

coerceToType, createField, createField, createMethod, error, evalBigDecimal, evalBigInteger, evalCharacter, evalObject, evalPeriod, evalStringWithNull, getExpectedType, getExpressionString, getMethodInfo, getType, hashCode, invocationError, invoke, isDouble, isDoubleString, isLiteralText, isReadOnly, print, printEscaped, printEscapedString, setProperty, setValue, toBigDecimal, toBigInteger, toBoolean, toCharacter, toClass, toDouble, toEnum, toLong, toStream, toStream, toStream, toStreamEscaped, toStreamEscaped, toStreamEscaped, toString, toString, toString, toString, toString, toStringWithNull

Methods inherited from class javax.el.ValueExpression

getValueReference

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanLiteral

public BooleanLiteral(boolean value)

Creates a new boolean literal.

Parameters:

value - the value

Method Detail

isConstant

public boolean isConstant()

Returns true if the expression is constant.

Overrides:

isConstant in class Expr

evalBoolean

public boolean evalBoolean(ELContext env)
                    throws ELException

Evaluate the expression as an boolean

Specified by:

evalBoolean in class AbstractBooleanExpr

Parameters:

env - the variable environment

Returns:

the value as a boolean

Throws:

ELException

printCreate

public void printCreate(WriteStream os)
                 throws java.io.IOException

Prints the Java code to recreate the BooleanLiteral.

Overrides:

printCreate in class Expr

Parameters:

os - the output stream to the *.java code.

Throws:

java.io.IOException

equals

public boolean equals(java.lang.Object o)

Returns true for equal strings.

Overrides:

equals in class Expr

toString

public java.lang.String toString()

Returns a readable representation of the expr.

Specified by:

toString in class Expr