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ViewScope: Target instance of the "correct" component component

Walking further along the path of understanding the jsf 2 viewport, I run into problems again.

There are several instances of my linked component component object, and the value of the parameter does not seem to be "correct."

I have the same initial setup as in Automatically creating a bean instance taking into account a session from the bean scope

Now I have created a composite component:

<composite:interface componentType="helloWidget">

</composite:interface>

<composite:implementation>
    <h:outputText value="Visible state of this composite component: #{cc.visibleState}"/>
</composite:implementation>

and its java copy

@FacesComponent(value = "helloWidget")
public class HelloWidget extends UINamingContainer implements Serializable {

    private static final long serialVersionUID = 2L;
    private boolean visible;

    public void show() {
        System.out.println("Setting visible state to true " + this);
        visible = true;
    }

    public void hide() {
        System.out.println("Setting visible state to false " + this);
        visible = false;
    }

    public String getVisibleState() {
        System.out.println("Getting visible state of " + this + "(" + visible + ")");
        return String.valueOf(visible);
    }
}

Then I updated my ViewBean.java

private HelloWidget helloWidget;
private boolean visible;

public String getVisibleState() {
    return String.valueOf(visible);
}

public void actionShow(ActionEvent ae) {

    visible = true;
    helloWidget.show();
}

public void actionHide(ActionEvent ae) {

    visible = false;
    helloWidget.hide();
}

public HelloWidget getHelloWidget() {
    return helloWidget;
}

public void setHelloWidget(HelloWidget helloWidget) {
    this.helloWidget = helloWidget;
}

and my hello.xhtml:

<f:view>
    <h:form>
        <h:outputText value="View-scoped bean visible value: #{viewBean.visibleState}"/>
        <br/>
        <mycc:helloWidget binding="#{viewBean.helloWidget}"/>
        <br/>
        <h:commandButton value="Show" actionListener="#{viewBean.actionShow}"/>
        <h:commandButton value="Hide" actionListener="#{viewBean.actionHide}"/>
    </h:form>
</f:view>

show/hide, "visible" bean , . "" HelloWidget , , HelloWidget, ( ) false.

? , ?

+1
1

/ . , , , . , , JSF. , / , , UIComponent#getStateHelper().

, :

@FacesComponent(value = "helloWidget")
public class HelloWidget extends UINamingContainer implements Serializable {

    private static final long serialVersionUID = 2L;

    public void show() {
        setVisible(true);
    }

    public void hide() {
        setVisible(false);
    }

    public Boolean getVisible() {
        return (Boolean) getStateHelper().eval("visible");
    }

    public void setVisible(Boolean visible) {
        getStateHelper().put("visible", visible);
    }
}

, : binding bean , bean . binding . , JSTL JSF2 Facelets... ?.

+1

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