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Explain how JSF supports AJAX.A JSF component supports the client-side AJAX Java Script and processes the AJAX requests. This implementation by JSF components has the following steps:
1. Rendering the support for HTML form elements
2. Allows JavaScript to handle form events by rendering the links
3. The requests sent by AJAX will be processed.
4. The AJAX based control logic for a JSF component can be overridden.
Explain how JSF supports AJAX.Ajax support can be added to the following panel components.
1. <hx:panelActionbar>
2. <hx:panelBox>
3. <hx:panelDialog>
4. <hx:panelFormBox>
5. <h:panelGrid>
6. <h:panelGroup>
7. <hx:panelLayout>
8. <hx:panelMenu>
9. <hx:panelSection>
To add Ajax support to a JSF page:
1. Drag a panel component from the palette onto the JSP.
2. Drag additional components (for example an input component) from the palette onto the panel component.
3. In the properties view, select the panel component tag. Select the Ajax tab.
4. On the Ajax tab, select the Allow Ajax updates checkbox.
5. Select the type of Ajax request that you want to use:
Refresh - A GET request for the same page.
Submit - A POST request for the same page.
External - A GET request for a different page.
6. Configure the request parameters.
hx:ajaxRefreshRequest
hx:ajaxExternalRequest
Note: If the component, the value of which needs to be used as a parameter is contained by a data table, you must manually add $$AJAXROW$$component client id> to the parameter set. Where <component client id> is a client ID of the component whose value you want to send as the parameter.
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