Class WebApplicationContextFacesELResolver

java.lang.Object

jakarta.el.ELResolver

org.springframework.web.jsf.el.WebApplicationContextFacesELResolver

public class WebApplicationContextFacesELResolver
extends ELResolver

Special JSF ELResolver that exposes the Spring WebApplicationContext instance under a variable named "webApplicationContext".

In contrast to SpringBeanFacesELResolver, this ELResolver variant does not resolve JSF variable names as Spring bean names. It rather exposes Spring's root WebApplicationContext itself under a special name, and is able to resolve "webApplicationContext.mySpringManagedBusinessObject" dereferences to Spring-defined beans in that application context.

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

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

Since:

2.5

Author:

Juergen Hoeller

See Also:

• SpringBeanFacesELResolver
• FacesContextUtils.getWebApplicationContext(jakarta.faces.context.FacesContext)

Field Summary

Fields

Modifier and Type	Field	Description
protected final org.apache.commons.logging.Log	logger	Logger available to subclasses.
static final String	WEB_APPLICATION_CONTEXT_VARIABLE_NAME	Name of the exposed WebApplicationContext variable: "webApplicationContext".

Constructor Summary

Constructors

Constructor	Description
WebApplicationContextFacesELResolver()

Method Summary

Modifier and Type	Method	Description
Class<?>	getCommonPropertyType(ELContext elContext, Object base)
@Nullable Class<?>	getType(ELContext elContext, @Nullable Object base, Object property)
@Nullable Object	getValue(ELContext elContext, @Nullable Object base, Object property)
protected @Nullable WebApplicationContext	getWebApplicationContext(ELContext elContext)	Retrieve the WebApplicationContext reference to expose.
boolean	isReadOnly(ELContext elContext, Object base, Object property)
void	setValue(ELContext elContext, Object base, Object property, Object value)

Methods inherited from class jakarta.el.ELResolver

convertToType, invoke

Methods inherited from class java.lang.Object

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

Field Details

WEB_APPLICATION_CONTEXT_VARIABLE_NAME

public static final String WEB_APPLICATION_CONTEXT_VARIABLE_NAME

Name of the exposed WebApplicationContext variable: "webApplicationContext".

See Also:

• Constant Field Values

logger

protected final org.apache.commons.logging.Log logger

Logger available to subclasses.

Constructor Details

WebApplicationContextFacesELResolver

public WebApplicationContextFacesELResolver()

Method Details

getValue

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

Specified by:

getValue in class ELResolver

Throws:

ELException

getType

public @Nullable 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,
 Object base,
 Object property,
 Object value)
              throws ELException

Specified by:

setValue in class ELResolver

Throws:

ELException

isReadOnly

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

Specified by:

isReadOnly in class ELResolver

Throws:

ELException

getCommonPropertyType

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

Specified by:

getCommonPropertyType in class ELResolver

getWebApplicationContext

protected @Nullable WebApplicationContext getWebApplicationContext(ELContext elContext)

Retrieve the WebApplicationContext reference to expose.

The default implementation delegates to FacesContextUtils, returning null if no WebApplicationContext found.

Parameters:

elContext - the current JSF ELContext

Returns:

the Spring web application context

See Also:

• FacesContextUtils.getWebApplicationContext(jakarta.faces.context.FacesContext)