CDI alignment

JSF 2.2 starts CDI integration, provides built-in CDI compatible ViewScoped and @FlowScoped, and all CDI scopes are compatible with JSF.

In JSF 2.3, more CDI alignments are added.

A lots of JSF built-in facilities are exposed as CDI beans, and can be injected as general CDI beans.

In JSF 2.2, to get JSF facilities.

FacesContext context= FacesContext.getCurrentInstance();
ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
Map<String, Object> cookieMap = FacesContext.getCurrentInstance().getExternalContext().getRequestCookieMap();
Map<String, Object> viewMap = FacesContext.getCurrentInstance().getViewRoot().getViewMap();

In JSF 2.3, you can inject them directly in your backing bean.

@Inject
FacesContext facesContext;

@Inject
ExternalContext externalContext;

@Inject
@RequestCookieMap
Map<String, Object> cookieMap;

@Inject
@ViewMap
Map<String, Object> viewMap;

And all of these can be resolved via EL in facelets template.

Artifact

EL name

Qualifier

Type

Application

#{application}

java.lang.Object (javax.servlet.ServletContext)

ApplicationMap

#{applicationScope}

@ApplicationMap

java.util.Map

CompositeComponent

#{cc}

(Not injectable)

javax.faces.component.UIComponent

Component

#{component}

(Not injectable)

javax.faces.component.UIComponent

RequestCookieMap

#{cookie}

@RequestCookieMap

java.util.Map

FacesContext

#{facesContext}

javax.faces.context.FacesContext

Flash

#{flash}

javax.faces.context.Flash

FlowMap

#{flowScope}

@FlowMap

java.util.Map

HeaderMap

#{header}

@HeaderMap

java.util.Map

HeaderValuesMap

#{headerValues}

@HeaderValuesMap

java.util.Map

InitParameterMap

#{initParam}

@InitParameterMap

java.util.Map

RequestParameterMap

#{param}

@RequestParameterMap

java.util.Map

RequestParameterValuesMap

#{paramValues}

@RequestParameterValuesMap

java.util.Map

Request

#{request}

(Not injectable)

java.lang.Object (javax.servlet.http.HttpServletRequest)

RequestMap

#{requestScope}

@RequestMap

java.util.Map

ResourceHandler

#{"resource"}

javax.faces.application.ResourceHandler

Session

#{session}

(Not injectable)

java.lang.Object (javax.servlet.http.HttpSession)

SessionMap

#{sessionScope}

@SessionMap

java.util.Map

View

#{view}

javax.faces.component.UIViewRoot

ViewMap

#{viewScope}

@ViewMap

java.util.Map

ExternalContext

#{externalContext} (new)

javax.faces.context.ExternalContext

PreviousRun applications in JSF 2.2 compatible mode NextCDI compatible @ManagedProperty

Last updated 4 years ago

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FacesContext context= FacesContext.getCurrentInstance(); ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext(); Map<String, Object> cookieMap = FacesContext.getCurrentInstance().getExternalContext().getRequestCookieMap(); Map<String, Object> viewMap = FacesContext.getCurrentInstance().getViewRoot().getViewMap();