How to declare the Navigation Rules for JSF?
A navigation rule specifies the JSF implementation which page need to send back to the browser after submitting a form. For instance, after the successful login, the page should to Main page or to return on the same login page. The following code snippet describes this.
<navigation-rule>
<from-view-id>/login.jsp</from-view-id>
<navigation-case>
<from-outcome>login</from-outcome>
<to-view-id>/main.jsp<to-view-id>
</navigation-case>
<navigation-case>
<from-outcome>fail</from-outcome>
<to-view-id>/login.jsp<to-view-id>
</navigation-case>
</navigation-rule>
from-outcome to be match with action attribute of the command button of the login.jsp as:
<h:commandbutton value="Login" action="login"/>
Secondly, it should also match with the navigation rule in face-config.xml as
<managed-bean>
<managed-bean-name>user</managed-bean-name>
<managed-bean-class>core.jsf.LoginBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
In the UI component, to be declared / used as:
<h:inputText value="#{user.name}"/>
value attribute is the name property of the user bean.
How to declare the Navigation Rules for JSF?
The Navigation rules indicate the JSF implementation to decide which page to navigate to after a certain action has been done on the browser like a form submission, etc.
1. The following example shows the usage of the navigation rules:
<navigation-rule>
<from-view-id>/login.jsp</from-view-id>
<navigation-case>
<from-outcome>loginv/from-outcome>
<to-view-id>/main.jsp<to-view-id>
</navigation-case>
</navigation-rule>
2. from-outcome should match with action attribute of the command button of the login.jsp:
<h:commandbutton value="Login" action="login"/>
3. Secondly, it should also match with the navigation rule in face-config.xml as
<managed-bean>
<managed-bean-name>user</managed-bean-name>
<managed-bean-class>core.jsf.LoginBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
4. In the UI component, to be declared / used as:
<h:inputText value="#{user.name}"/>
