javax.el
Class ValueExpression

java.lang.Object
  extended by javax.el.Expression
      extended by javax.el.ValueExpression
All Implemented Interfaces:
java.io.Serializable
Direct Known Subclasses:
AbstractValueExpression, AbstractValueExpression, CandiValueExpression, CoreStringTokenValueExpression, Expr, IndexedValueExpression, IteratedValueExpression, ObjectLiteralValueExpression, ObjectValueExpression, ValueExpressionAdapter

public abstract class ValueExpression
extends Expression

Represents an EL expression

See Also:
Serialized Form

Constructor Summary
ValueExpression()
           
 
Method Summary
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