com.caucho.config.el
Class CandiExpr

java.lang.Object
  javax.el.Expression
      javax.el.ValueExpression
          com.caucho.el.Expr
              com.caucho.config.el.CandiExpr

All Implemented Interfaces:

java.io.Serializable

public class CandiExpr
extends Expr

Variable resolution for webbeans variables

See Also:

Serialized Form

Field Summary

Fields inherited from class com.caucho.el.Expr

L, log

Constructor Summary

CandiExpr(Expr expr)

Method Summary

Expr	createField(Expr field) Creates a field reference using this expression as the base object.
Expr	createField(java.lang.String field) Creates a field reference using this expression as the base object.
Expr	createMethod(Expr[] args) Creates a method call using this as the obj.method expression
java.math.BigDecimal	evalBigDecimal(ELContext env) Evaluate the expression, knowing the value should be a BigDecimal.
java.math.BigInteger	evalBigInteger(ELContext env) Evaluate the expression, knowing the value should be a BigInteger.
boolean	evalBoolean(ELContext env) Evaluate the expression, knowing the value should be a boolean.
char	evalCharacter(ELContext env) Evaluate the expression, knowing the value should be a string
double	evalDouble(ELContext env) Evaluate the expression, knowing the value should be a double.
long	evalLong(ELContext env) Evaluate the expression, knowing the value should be a long
long	evalPeriod(ELContext env) Evaluate the expression, knowing the value should be a period
java.lang.String	evalString(ELContext env) Evaluate the expression, knowing the value should be a string
java.lang.String	evalStringWithNull(ELContext env) Evaluate the expression, knowing the value should be a string
java.lang.Class<?>	getExpectedType()
java.lang.String	getExpressionString()
MethodInfo	getMethodInfo(ELContext env, java.lang.Class<?> returnType, java.lang.Class<?>[] argTypes) Evaluates the expression, returning an object.
java.lang.Class<?>	getType(ELContext context)
java.lang.Object	getValue(ELContext env) Evaluates the expression, returning an object.
java.lang.Object	invoke(ELContext env, java.lang.Class<?>[] argTypes, java.lang.Object[] args) Evaluates the expression, returning an object.
boolean	isConstant() Returns true if the expression is constant.
boolean	isLiteralText() Returns true if the expression is literal text
boolean	isReadOnly(ELContext env) Returns true if the expression is read-only.
boolean	print(JspWriter out, ELContext env, boolean escapeXml) Evaluates directly to the output.
boolean	print(WriteStream out, ELContext env, boolean escapeXml) Evaluates directly to the output.
void	printCreate(WriteStream os) Generates the code to regenerate the expression.
void	setValue(ELContext env, java.lang.Object value) Evaluates the expression, setting an object.
java.lang.String	toString()

Methods inherited from class com.caucho.el.Expr

coerceToType, equals, error, evalObject, hashCode, invocationError, isDouble, isDoubleString, printEscaped, printEscapedString, setProperty, toBigDecimal, toBigInteger, toBoolean, toCharacter, 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

CandiExpr

public CandiExpr(Expr expr)

Method Detail

isConstant

public boolean isConstant()

Description copied from class: Expr

Returns true if the expression is constant.

Overrides:

isConstant in class Expr

isReadOnly

public boolean isReadOnly(ELContext env)

Description copied from class: Expr

Returns true if the expression is read-only.

Overrides:

isReadOnly in class Expr

isLiteralText

public boolean isLiteralText()

Description copied from class: Expr

Returns true if the expression is literal text

Overrides:

isLiteralText in class Expr

createField

public Expr createField(Expr field)

Description copied from class: Expr

Creates a field reference using this expression as the base object.

Overrides:

createField in class Expr

Parameters:

field - the expression for the field.

createField

public Expr createField(java.lang.String field)

Description copied from class: Expr

Creates a field reference using this expression as the base object.

Overrides:

createField in class Expr

Parameters:

field - the string reference for the field.

createMethod

public Expr createMethod(Expr[] args)

Description copied from class: Expr

Creates a method call using this as the obj.method expression

Overrides:

createMethod in class Expr

Parameters:

args - the arguments for the method

getValue

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

Description copied from class: Expr

Evaluates the expression, returning an object.

Specified by:

getValue in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as an object

Throws:

ELException

getMethodInfo

public MethodInfo getMethodInfo(ELContext env,
                                java.lang.Class<?> returnType,
                                java.lang.Class<?>[] argTypes)
                         throws ELException

Description copied from class: Expr

Evaluates the expression, returning an object.

Overrides:

getMethodInfo 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

Description copied from class: Expr

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

evalBoolean

public boolean evalBoolean(ELContext env)
                    throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a boolean.

Overrides:

evalBoolean in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a boolean

Throws:

ELException

evalDouble

public double evalDouble(ELContext env)
                  throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a double.

Overrides:

evalDouble in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a double

Throws:

ELException

evalLong

public long evalLong(ELContext env)
              throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a long

Overrides:

evalLong in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a double

Throws:

ELException

evalString

public java.lang.String evalString(ELContext env)
                            throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a string

Overrides:

evalString in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a string

Throws:

ELException

evalStringWithNull

public java.lang.String evalStringWithNull(ELContext env)
                                    throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a string

Overrides:

evalStringWithNull in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a string

Throws:

ELException

evalCharacter

public char evalCharacter(ELContext env)
                   throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a string

Overrides:

evalCharacter in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a string

Throws:

ELException

evalPeriod

public long evalPeriod(ELContext env)
                throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a period

Overrides:

evalPeriod in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a period

Throws:

ELException

evalBigInteger

public java.math.BigInteger evalBigInteger(ELContext env)
                                    throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a BigInteger.

Overrides:

evalBigInteger in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a BigInteger

Throws:

ELException

evalBigDecimal

public java.math.BigDecimal evalBigDecimal(ELContext env)
                                    throws ELException

Description copied from class: Expr

Evaluate the expression, knowing the value should be a BigDecimal.

Overrides:

evalBigDecimal in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as a BigDecimal

Throws:

ELException

setValue

public void setValue(ELContext env,
                     java.lang.Object value)
              throws PropertyNotFoundException,
                     PropertyNotWritableException,
                     ELException

Description copied from class: Expr

Evaluates the expression, setting an object.

Overrides:

setValue in class Expr

Parameters:

env - the variable environment

Throws:

PropertyNotFoundException

PropertyNotWritableException

ELException

print

public boolean print(WriteStream out,
                     ELContext env,
                     boolean escapeXml)
              throws java.io.IOException,
                     ELException

Description copied from class: Expr

Evaluates directly to the output. The method returns true if the default value should be printed instead.

Overrides:

print in class Expr

Parameters:

out - the output writer

env - the variable environment

escapeXml - if true, escape reserved XML

Returns:

true if the object is null, otherwise false

Throws:

java.io.IOException

ELException

print

public boolean print(JspWriter out,
                     ELContext env,
                     boolean escapeXml)
              throws java.io.IOException,
                     ELException

Description copied from class: Expr

Evaluates directly to the output. The method returns true if the default value should be printed instead.

Overrides:

print in class Expr

Parameters:

out - the output writer

env - the variable environment

escapeXml - if true, escape reserved XML

Returns:

true if the object is null, otherwise false

Throws:

java.io.IOException

ELException

printCreate

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

Description copied from class: Expr

Generates the code to regenerate the expression.

Overrides:

printCreate in class Expr

Parameters:

os - the stream to the *.java page

Throws:

java.io.IOException

getExpressionString

public java.lang.String getExpressionString()

Overrides:

getExpressionString in class Expr

getExpectedType

public java.lang.Class<?> getExpectedType()

Overrides:

getExpectedType in class Expr

getType

public java.lang.Class<?> getType(ELContext context)
                           throws PropertyNotFoundException,
                                  ELException

Overrides:

getType in class Expr

Throws:

PropertyNotFoundException

ELException

toString

public java.lang.String toString()

Specified by:

toString in class Expr