com.caucho.el

Class AddExpr

java.lang.Object

javax.el.Expression

javax.el.ValueExpression

com.caucho.el.Expr

com.caucho.el.AddExpr

All Implemented Interfaces:

java.io.Serializable

public class AddExpr
extends Expr

Represents a binary addition numeric operation

See Also:

Serialized Form

Field Summary

Fields inherited from class com.caucho.el.Expr

L, log

Constructor Summary

Constructors

Constructor and Description
AddExpr(Expr left, Expr right) Creates the addition expression.

Method Summary

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

Methods inherited from class com.caucho.el.Expr

coerceToType, createField, createField, createMethod, error, evalBigDecimal, evalBigInteger, evalBoolean, evalCharacter, evalObject, evalPeriod, evalString, evalStringWithNull, getExpectedType, getExpressionString, getMethodInfo, getType, hashCode, invocationError, invoke, isDouble, isDoubleString, isLiteralText, isReadOnly, print, 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

AddExpr

public AddExpr(Expr left,
               Expr right)

Creates the addition expression.

Parameters:

left - the left subexpression

right - the right subexpression

Method Detail

isConstant

public boolean isConstant()

Returns true if this is a constant expression.

Overrides:

isConstant in class Expr

getValue

public java.lang.Object getValue(ELContext env)
                          throws ELException

Evaluate the expression as an object.

Specified by:

getValue in class Expr

Parameters:

env - the variable environment

Returns:

the result as an object

Throws:

ELException

evalLong

public long evalLong(ELContext env)
              throws ELException

Evaluate the expression as a long

Overrides:

evalLong in class Expr

Parameters:

env - the variable environment

Returns:

the result as an long

Throws:

ELException

evalDouble

public double evalDouble(ELContext env)
                  throws ELException

Evaluate the expression as a double

Overrides:

evalDouble in class Expr

Parameters:

env - the variable environment

Returns:

the result as an double

Throws:

ELException

printCreate

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

Prints the Java code to recreate an LongLiteral.

Overrides:

printCreate in class Expr

Parameters:

os - the output stream to the *.java file

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