是否可以在JSF中将视图范围的bean注入@FacesValidator中？

Question

As the title implies, I'm trying to inject a view scoped bean into a validator decorated by @FacesValidator as follows.

@FacesValidator(value = "priceRangeValidator")
public final class PriceRangeValidator implements Validator {
    @ManagedProperty(value="#{rangeSliderBean}")
    private RangeSliderBean rangeSliderBean; //Setter only.

    @Override
    public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
        // The bean instance is unavailable here. It is null.
    }
}

The target view scoped bean - RangeSliderBean is unavailable in the validate() method.

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I'm temporarily following the following way to get an instance of that bean in the validate() method itself.

RangeSliderBean rangeSliderBean = context.getApplication().evaluateExpressionGet(context, "#{rangeSliderBean}", RangeSliderBean.class);

Is it possible to inject a view scoped JSF managed bean into a validator using the @ManagedProperty annotation or something else?

_{I'm using JSF 2.2.6.}

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UPDATE:

This does not work on Mojarra 2.3.0-m01 . The bean instance still remains null as it did before. This time long after this post, I took a corresponding view scoped CDI bean ( @ManagedProperty was replaced by @Inject ).

Answer 1

Try dynamic Injection by evaluating an expression using Application like this.

FacesContext facesContext = FacesContext.getCurrentInstance();
RangeSliderBean rangeSliderBean = facesContext.getApplication().evaluateExpressionGet(facesContext, "#{rangeSliderBean}", RangeSliderBean .class);