Examples of javax.faces.el.VariableResolver

javax.faces.el.VariableResolver

VariableResolver represents a pluggable mechanism for resolving a top-level variable reference at evaluation time.
@deprecated This has been replaced by {@link javax.el.ELResolver}when operating with a null base argument.

            throw new NullPointerException();
        }
        List names = parse(ref);


        // Resolve the variable name
        VariableResolver vr = application().getVariableResolver();
        String name = (String) names.get(0);
        Object base = vr.resolveVariable(context, name);
        if (names.size() < 2)
        {
            return true;
        }

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            throw new NullPointerException();
        }
        List names = parse(ref);


        // Resolve the variable name
        VariableResolver vr = application().getVariableResolver();
        String name = (String) names.get(0);
        Object base = vr.resolveVariable(context, name);
        if (names.size() < 2)
        {
            return base.getClass();
        }

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    return logAndNavigate(null);
  }


  public String navigateAction() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    VariableResolver resolver = facesContext.getApplication().getVariableResolver();
    Navigation navigation = (Navigation) resolver.resolveVariable(facesContext, "navigation");


    // in case of both the select controll is not proccessed during lifecycle
    // we need to get the value from the request params
    navigateAction = (String) facesContext.getExternalContext().getRequestParameterMap().get("page:content:navSelect");

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    return logAndNavigate(null);
  }


  public String navigateAction() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    VariableResolver resolver = facesContext.getApplication().getVariableResolver();
    Navigation navigation = (Navigation) resolver.resolveVariable(facesContext, "navigation");


    // in case of both the select control is not processed during lifecycle
    // we need to get the value from the request params
    navigateAction = (String) facesContext.getExternalContext().getRequestParameterMap().get("page:content:navSelect");

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                                                    String bundleName)
    {
        //TODO: Could be JSTL LocalizationContext bundle?


        //Lookup as attribute (try different scopes)
        VariableResolver vr = facesContext.getApplication().getVariableResolver();
        ResourceBundle bundle = (ResourceBundle)vr.resolveVariable(facesContext, bundleName);


        return bundle;
    }

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  private VariableResolverUtil() {
  }


  public static Object resolveVariable(FacesContext context, String variable) {
    Application application = context.getApplication();
    VariableResolver variableResolver = application.getVariableResolver();
    return variableResolver.resolveVariable(context, variable);
  }

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        }
    }


    public void installProgrammaticallyAddedResolvers() {
        // Ensure custom resolvers are inserted at the correct place.
        VariableResolver vr = this.getLegacyVariableResolver();
        if (null != vr) {
            assert(null != this.getLegacyVRChainHeadWrapperForJsp());
            this.getLegacyVRChainHeadWrapperForJsp().setWrapped(vr);
            assert(null != this.getLegacyVRChainHeadWrapperForFaces());
            this.getLegacyVRChainHeadWrapperForFaces().setWrapped(vr);

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        }
    }


    public void installProgrammaticallyAddedResolvers() {
        // Ensure custom resolvers are inserted at the correct place.
        VariableResolver vr = this.getLegacyVariableResolver();
        if (null != vr) {
            assert(null != this.getLegacyVRChainHeadWrapperForJsp());
            this.getLegacyVRChainHeadWrapperForJsp().setWrapped(vr);
            assert(null != this.getLegacyVRChainHeadWrapperForFaces());
            this.getLegacyVRChainHeadWrapperForFaces().setWrapped(vr);

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                                                      prevInChain);
                if (instance != null) {
                    prevInChain = instance;
                }
            }
            VariableResolver legacyVRChainHead = (VariableResolver) prevInChain;
            if (associate != null) {
                associate.setLegacyVRChainHead(legacyVRChainHead);
            }
        }

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     *  return the <code>ChainAwareVariableResolver</code>.
     */
    public static VariableResolver getDelegateVR(ApplicationAssociate associate,
                                                 boolean provideDefault) {


        VariableResolver vr = associate.getLegacyVariableResolver();
        if (vr == null) {
            vr = associate.getLegacyVRChainHead();
            if (vr == null && provideDefault) {
                vr = new ChainAwareVariableResolver();
            }

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