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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.web.jsf

Source Cross Reference Class Diagram Java Document (Java Doc)

org.springframework.web.jsf .WebApplicationContextVariableResolver

WebApplicationContextVariableResolver

public class WebApplicationContextVariableResolver extends VariableResolver (Code)

Special JSF 1.1 VariableResolver that exposes the Spring WebApplicationContext instance under a variable named "webApplicationContext".

In contrast to DelegatingVariableResolver , this VariableResolver does not resolve JSF variable names as Spring bean names. It rather exposes Spring's root WebApplicationContext itself under a special name. JSF-managed beans can then use Spring's WebApplicationContext API to retrieve Spring-managed beans, access resources, etc.

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

 <application>
 ...
 <variable-resolver>org.springframework.web.jsf.WebApplicationContextVariableResolver</variable-resolver>
 </application>

author:
   Colin Sampaleanu
author:
   Juergen Hoeller
since:
   1.2.5
See Also:   DelegatingVariableResolver
See Also:   FacesContextUtils.getWebApplicationContext

Field Summary
final public static String	WEB_APPLICATION_CONTEXT_VARIABLE_NAME Name of the exposed WebApplicationContext variable: "webApplicationContext".
final protected VariableResolver	originalVariableResolver

Constructor Summary
public	WebApplicationContextVariableResolver(VariableResolver originalVariableResolver) Create a new WebApplicationContextVariableResolver, using the given original VariableResolver.

Method Summary
final protected VariableResolver	getOriginalVariableResolver() Return the original JSF VariableResolver that this resolver delegates to.
protected WebApplicationContext	getWebApplicationContext(FacesContext facesContext) Retrieve the WebApplicationContext reference to expose.
public Object	resolveVariable(FacesContext context, String name) Check for the special "webApplicationContext" variable first, then delegate to the original VariableResolver.

Field Detail

WEB_APPLICATION_CONTEXT_VARIABLE_NAME
final public static String WEB_APPLICATION_CONTEXT_VARIABLE_NAME(Code)
	Name of the exposed WebApplicationContext variable: "webApplicationContext".

originalVariableResolver
final protected VariableResolver originalVariableResolver(Code)

Constructor Detail

WebApplicationContextVariableResolver
public WebApplicationContextVariableResolver(VariableResolver originalVariableResolver)(Code)
	Create a new WebApplicationContextVariableResolver, using the given original VariableResolver. A JSF implementation will automatically pass its original resolver into the constructor of a configured resolver, provided that there is a corresponding constructor argument. Parameters: originalVariableResolver - the original VariableResolver

Method Detail

getOriginalVariableResolver
final protected VariableResolver getOriginalVariableResolver()(Code)
	Return the original JSF VariableResolver that this resolver delegates to. Used to resolve standard JSF-managed beans.

getWebApplicationContext
protected WebApplicationContext getWebApplicationContext(FacesContext facesContext)(Code)
	Retrieve the WebApplicationContext reference to expose. The default implementation delegates to FacesContextUtils, returning `null` if no WebApplicationContext found. Parameters: facesContext - the current JSF context the Spring web application context See Also: FacesContextUtils.getWebApplicationContext

resolveVariable
public Object resolveVariable(FacesContext context, String name) throws EvaluationException(Code)
	Check for the special "webApplicationContext" variable first, then delegate to the original VariableResolver. If no WebApplicationContext is available, all requests will be delegated to the original VariableResolver.

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