org.zkoss.zel

Class ValueExpression

java.lang.Object

org.zkoss.zel.Expression

org.zkoss.zel.ValueExpression

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ValueExpressionImpl, ValueExpressionLiteral

public abstract class ValueExpression
extends Expression

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ValueExpression()

Method Summary

Methods

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

Methods inherited from class org.zkoss.zel.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 Class<?> getExpectedType()

getType

public abstract Class<?> getType(ELContext context)
                          throws NullPointerException,
                                 PropertyNotFoundException,
                                 ELException

Throws:

NullPointerException

PropertyNotFoundException

ELException

isReadOnly

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

Throws:

NullPointerException

PropertyNotFoundException

ELException

setValue

public abstract void setValue(ELContext context,
            Object value)
                       throws NullPointerException,
                              PropertyNotFoundException,
                              PropertyNotWritableException,
                              ELException

Throws:

NullPointerException

PropertyNotFoundException

PropertyNotWritableException

ELException

getValue

public abstract Object getValue(ELContext context)
                         throws NullPointerException,
                                PropertyNotFoundException,
                                ELException

Throws:

NullPointerException

PropertyNotFoundException

ELException

getValueReference

public ValueReference getValueReference(ELContext context)

Since:

EL 2.2