org.eclnt.jsfserver.util

Class CCELResolver

java.lang.Object

ELResolver

org.eclnt.jsfserver.util.CCELResolver

public class CCELResolver
extends ELResolver

This class wraps the default expression resolver in order to wrap the getting/setting functions with some additional functions.

(1.) Interface IPropertyTypeResolver during getType(..) call.
(2.) Interface IAcceleratedPropertyAccess during getValue(..) call.
(3.) Hot Deployment Management.
(4.) Possibility to (re-) set a managed bean at runtime.
(5.) Before setting property values the interface IPropertyValueConverter is called, if available.


The functions of this class were part of the CaptainCasa-specific variable and property resolver with JSF 1.1 - due to changed from JSF 1.1 to JSF 1.2 they were shifted into this class...

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CCELResolver.DefaultCCELResolverListener Default implementation with "empty code".
static interface	CCELResolver.ICCELResolverListener Notification of certain events within the resolving of expressions...

Constructor Summary

Constructors

Constructor and Description
CCELResolver() Sepcial constructor to be used in mini server environment.
CCELResolver(ELResolver delegateTo) Default constructor to be used in normal Servelt/JSF environment.

Method Summary

Modifier and Type	Method and Description
static boolean	checkIfThreandWithErrorFalse()
static void	defineInstanceToBeUsed(java.lang.String name, java.lang.Object instance) Allows to set a managed bean at runtime.
java.lang.Class<?>	getCommonPropertyType(ELContext arg0, java.lang.Object arg1)
java.util.Iterator<java.beans.FeatureDescriptor>	getFeatureDescriptors(ELContext arg0, java.lang.Object arg1)
java.lang.Class<?>	getType(ELContext context, java.lang.Object base, java.lang.Object property)
java.lang.Object	getValue(ELContext context, java.lang.Object base, java.lang.Object property)
static void	initListener(CCELResolver.ICCELResolverListener listener)
boolean	isReadOnly(ELContext arg0, java.lang.Object arg1, java.lang.Object arg2)
static void	passCurrentValueExpression(ValueExpression currentValueExpression)
static void	registerThreadWithErrorFalse()
void	setValue(ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value)
static void	unregisterThreadWithErrorFalse()

Methods inherited from class java.lang.Object

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

Constructor Detail

CCELResolver

public CCELResolver(ELResolver delegateTo)

Default constructor to be used in normal Servelt/JSF environment.

CCELResolver

public CCELResolver()

Sepcial constructor to be used in mini server environment. In this scenario there is no delegation possibility. And in this scenario all expressions need to be resolved through the CCELResolver (i.e. there is NO resolution of e.g. "d" by the resolver of the servlet/JSF environment.

Method Detail

initListener

public static void initListener(CCELResolver.ICCELResolverListener listener)

passCurrentValueExpression

public static void passCurrentValueExpression(ValueExpression currentValueExpression)

getType

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

Throws:

java.lang.NullPointerException

PropertyNotFoundException

ELException

getValue

public java.lang.Object getValue(ELContext context,
                                 java.lang.Object base,
                                 java.lang.Object property)
                          throws java.lang.NullPointerException,
                                 PropertyNotFoundException,
                                 ELException

Throws:

java.lang.NullPointerException

PropertyNotFoundException

ELException

setValue

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

Throws:

java.lang.NullPointerException

PropertyNotFoundException

PropertyNotWritableException

ELException

isReadOnly

public boolean isReadOnly(ELContext arg0,
                          java.lang.Object arg1,
                          java.lang.Object arg2)
                   throws java.lang.NullPointerException,
                          PropertyNotFoundException,
                          ELException

Throws:

java.lang.NullPointerException

PropertyNotFoundException

ELException

getCommonPropertyType

public java.lang.Class<?> getCommonPropertyType(ELContext arg0,
                                                java.lang.Object arg1)

getFeatureDescriptors

public java.util.Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(ELContext arg0,
                                                                              java.lang.Object arg1)

defineInstanceToBeUsed

public static void defineInstanceToBeUsed(java.lang.String name,
                                          java.lang.Object instance)

Allows to set a managed bean at runtime. This method may be used to explicitly reset central managed beans during runtime. E.g. you may exchange the central dispatcher object (typically "#{d}"), in case you use this dispatcher.

registerThreadWithErrorFalse

public static void registerThreadWithErrorFalse()

unregisterThreadWithErrorFalse

public static void unregisterThreadWithErrorFalse()

checkIfThreandWithErrorFalse

public static boolean checkIfThreandWithErrorFalse()