org.springframework.web.jsf.el

Class SpringBeanFacesELResolver

java.lang.Object

javax.el.ELResolver

org.springframework.web.jsf.el.SpringBeanFacesELResolver

public class SpringBeanFacesELResolver
extends ELResolver

JSF ELResolver that delegates to the Spring root WebApplicationContext, resolving name references to Spring-defined beans.

Configure this resolver in your faces-config.xml file as follows:

 <application>
   ...
   <el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
 </application>

All your JSF expressions can then implicitly refer to the names of Spring-managed service layer beans, for example in property values of JSF-managed beans:

 <managed-bean>
   <managed-bean-name>myJsfManagedBean</managed-bean-name>
   <managed-bean-class>example.MyJsfManagedBean</managed-bean-class>
   <managed-bean-scope>session</managed-bean-scope>
   <managed-property>
     <property-name>mySpringManagedBusinessObject</property-name>
     <value>#{mySpringManagedBusinessObject}</value>
   </managed-property>
 </managed-bean>

with "mySpringManagedBusinessObject" defined as Spring bean in applicationContext.xml:

 <bean id="mySpringManagedBusinessObject" class="example.MySpringManagedBusinessObject">
   ...
 </bean>

Since:

2.5

Author:

Juergen Hoeller

See Also:

WebApplicationContextFacesELResolver, FacesContextUtils.getRequiredWebApplicationContext(javax.faces.context.FacesContext)

Field Summary

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor and Description
SpringBeanFacesELResolver()

Method Summary

Modifier and Type	Method and Description
Class<?>	getCommonPropertyType(ELContext elContext, Object base)
Iterator<FeatureDescriptor>	getFeatureDescriptors(ELContext elContext, Object base)
Class<?>	getType(ELContext elContext, Object base, Object property)
Object	getValue(ELContext elContext, Object base, Object property)
protected WebApplicationContext	getWebApplicationContext(ELContext elContext) Retrieve the web application context to delegate bean name resolution to.
boolean	isReadOnly(ELContext elContext, Object base, Object property)
void	setValue(ELContext elContext, Object base, Object property, Object value)

Methods inherited from class javax.el.ELResolver

convertToType, invoke

Methods inherited from class java.lang.Object

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

Constructor Detail

SpringBeanFacesELResolver

public SpringBeanFacesELResolver()

Method Detail

getValue

@Nullable
public Object getValue(ELContext elContext,
                                 @Nullable
                                 Object base,
                                 Object property)
                          throws ELException

Specified by:

getValue in class ELResolver

Throws:

ELException

getType

@Nullable
public Class<?> getType(ELContext elContext,
                                  @Nullable
                                  Object base,
                                  Object property)
                           throws ELException

Specified by:

getType in class ELResolver

Throws:

ELException

setValue

public void setValue(ELContext elContext,
                     @Nullable
                     Object base,
                     Object property,
                     Object value)
              throws ELException

Specified by:

setValue in class ELResolver

Throws:

ELException

isReadOnly

public boolean isReadOnly(ELContext elContext,
                          @Nullable
                          Object base,
                          Object property)
                   throws ELException

Specified by:

isReadOnly in class ELResolver

Throws:

ELException

getFeatureDescriptors

@Nullable
public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext elContext,
                                                                   @Nullable
                                                                   Object base)

Specified by:

getFeatureDescriptors in class ELResolver

getCommonPropertyType

public Class<?> getCommonPropertyType(ELContext elContext,
                                      @Nullable
                                      Object base)

Specified by:

getCommonPropertyType in class ELResolver

getWebApplicationContext

protected WebApplicationContext getWebApplicationContext(ELContext elContext)

Retrieve the web application context to delegate bean name resolution to.

The default implementation delegates to FacesContextUtils.

Parameters:

elContext - the current JSF ELContext

Returns:

the Spring web application context (never null)

See Also:

FacesContextUtils.getRequiredWebApplicationContext(javax.faces.context.FacesContext)