javax.el

Class ValueExpression

java.lang.Object

javax.el.Expression

javax.el.ValueExpression

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

AbstractValueExpression, AbstractValueExpression, CandiValueExpression, CoreStringTokenValueExpression, Expr, IndexedValueExpression, IteratedValueExpression, ObjectLiteralValueExpression, ObjectValueExpression

public abstract class ValueExpression
extends Expression

Represents an EL expression

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ValueExpression()

Method Summary

Modifier and Type	Method and Description
abstract java.lang.Class<?>	getExpectedType()
abstract java.lang.Class<?>	getType(ELContext context)
abstract java.lang.Object	getValue(ELContext context)
ValueReference	getValueReference(ELContext context)
abstract boolean	isReadOnly(ELContext context)
abstract void	setValue(ELContext context, java.lang.Object value)

Methods inherited from class javax.el.Expression

equals, getExpressionString, hashCode, isLiteralText

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueExpression

public ValueExpression()

Method Detail

getExpectedType

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

getType

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

Throws:

PropertyNotFoundException

ELException

getValue

public abstract java.lang.Object getValue(ELContext context)
                                   throws PropertyNotFoundException,
                                          ELException

Throws:

PropertyNotFoundException

ELException

getValueReference

public ValueReference getValueReference(ELContext context)

isReadOnly

public abstract boolean isReadOnly(ELContext context)
                            throws PropertyNotFoundException,
                                   ELException

Throws:

PropertyNotFoundException

ELException

setValue

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

Throws:

PropertyNotFoundException

PropertyNotWritableException

ELException