JSF(Java Server Faces) | A Chapter to Discuss

JSF is server side UI component framework. JSF contains API for representing UI component and managing their interface state, handling event, server side validation and data conversion, defining page navigation supporting internationalization and accessibility and providing extensibility for all these features.

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Backing Bean:-

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Backing Bean is referenced by a form, it is defined only in request scope.

Managed Bean:-

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Managed Bean is Backing Bean that has been registered with JSF (faces-config.xml) and it automatically created by JSF.

Managed Bean scope is request, session and application.

Managed Bean declaration:-

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<managed-bean>

   <managed-bean-name>hello</managed-bean-name>

   <managed-bean-class>com.mk.test.Hello</managed-bean-class>

   <managed-bean-scope>session</managed-bean-scope>

</managed-bean>

Or Using @ManagedBean annotation with @SessionScoped

Navigation rule:-

<navigation-rule>

            <from-view-id>login.xhtml</from-view-id>

            <navigation-case>

                        <from-action>#{Controller.page1}</from-action>

                        <from-outcome>success</from-outcome>

                        <to-view-id>home.xhtml</to-view-id>

            </navigation-case>

            <navigation-case>

                        <from-action>#{Controller.page1}</from-action>

                        <from-outcome>failure</from-outcome>

                        <to-view-id> login.xhtml</to-view-id>

            </navigation-case>

</navigation-rule>

JSF Custom component:-

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JSF Component is made up of three classes that works closely together.

-          Renderer: - Creates client side representation of the component, it takes any input from client and convert in component understandable form.

-          UI Component: - This class is responsible for data and behavior of the component on the server side.

-          JSP Custom Action: - It allows configuration of component in JSP pages.