com.caucho.el

Class MethodExpr

java.lang.Object

javax.el.Expression

javax.el.ValueExpression

com.caucho.el.Expr

com.caucho.el.MethodExpr

All Implemented Interfaces:

java.io.Serializable

public class MethodExpr
extends Expr

Represents a named method call on an object.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.caucho.el.Expr

L, log

Constructor Summary

Constructors

Constructor and Description
MethodExpr(Expr expr, java.lang.String methodName, Expr[] args) Creates a new method expression.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Returns true for equal strings.
java.lang.Object	getValue(ELContext env) Evaluate the expression as an object.
java.lang.Object	invoke(ELContext env, java.lang.Class<?>[] argTypes, java.lang.Object[] args) Evaluates the expression, returning an object.
void	printCreate(WriteStream os) Prints the code to create an LongLiteral.
java.lang.String	toString() Returns the printed version.

Methods inherited from class com.caucho.el.Expr

coerceToType, createField, createField, createMethod, error, evalBigDecimal, evalBigInteger, evalBoolean, evalCharacter, evalDouble, evalLong, evalObject, evalPeriod, evalString, evalStringWithNull, getExpectedType, getExpressionString, getMethodInfo, getType, hashCode, invocationError, isConstant, 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

MethodExpr

public MethodExpr(Expr expr,
                  java.lang.String methodName,
                  Expr[] args)

Creates a new method expression.

Parameters:

expr - the expression generating the object on which the method is to be called

methodName - the name of the method to call

args - the arguments for the method

Method Detail

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 value of the expression as an object

Throws:

ELException

invoke

public java.lang.Object invoke(ELContext env,
                               java.lang.Class<?>[] argTypes,
                               java.lang.Object[] args)
                        throws ELException

Evaluates the expression, returning an object.

Overrides:

invoke in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as an object

Throws:

ELException

printCreate

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

Prints the code to create an LongLiteral.

Overrides:

printCreate in class Expr

Parameters:

os - the stream to the *.java page

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 the printed version.

Specified by:

toString in class Expr