20+ Top Interview Questions and Answers (2024)

Ques 1

What is RichFaces?

RichFaces is a JSF component library that consists of two main parts: AJAX enabled JSF components and the CDK (Component Development Kit). RichFaces UI components are divided into two tag libraries a4j: and rich:. Both tag libraries offer out-of-the-box AJAX enabled JSF components. The CDK is a facility for creating, generating and testing you own rich JSF components.

A full set of AJAX enabled components in two libraries

a4j: page centric AJAX controls
rich: self contained, ready to use components

Client-side validation, expanding JSR 303 Bean Validation all the way to the browser.
Advanced queueing to match the high performance requirements of real world enterprise applications.
Push component upgrades including JavaMessaging Service (JMS) integrations, and various transport mechanisms based on browser support.
Our own Component Development Kit (CDK).
Comprehensive documentation covering development best practices, and component details.
Detailed and automated testing facilities for components, actions, listeners, and pages.
Broad cross-browser support
Large and active community at its foundation!!

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Ques 2

What are the basic configurations of web.xml for Rich Faces?

Configuration of web.xml while you are using RichFaces in your application:

<context-param>

<param-name>org.richfaces.CONTROL_SKINNING</param-name>

<param-value>enable</param-value>

</context-param>

<context-param>

<param-name>org.richfaces.LoadStyleStrategy</param-name>

<param-value>ALL</param-value>

</context-param>

<context-param>

<param-name>org.richfaces.LoadScriptStrategy</param-name>

<param-value>ALL</param-value>

</context-param>

<display-name>RichFaces Filter</display-name>

<filter-name>richfaces</filter-name>

<filter-class>org.ajax4jsf.Filter</filter-class>

<init-param>

<param-name>maxRequestSize</param-name>

<param-value>999999999</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>richfaces</filter-name>

<servlet-name>Faces Servlet</servlet-name>

<dispatcher>REQUEST</dispatcher>

<dispatcher>FORWARD</dispatcher>

<dispatcher>INCLUDE</dispatcher>

</filter-mapping>

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Ques 3

Give some examples of RichFaces Components.

Some components of RichFaces:

<rich:panel>

<rich:dataTable>

<rich:toolTip>

<rich:modalPanel>

<rich:separator>

<rich:spacer>

<rich:togglePanel>

<rich:tabPanel>

<rich:collapsiblePanel>

<rich:tooltip>

<rich:fileUpload>

<rich:calendar>

<rich:select>

<rich:tree>

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Ques 4

Give some examples of a4j components.

Some examples of a4j components:

<a4j:commandLink>
<a4j:commandButton>
<a4j:outputPanel>
<a4j:region>
<a4j:mediaOutput>
<a4j:queue>

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Ques 5

What is a4j:commandLink in RichFaces?

The a4j:commandLink combines the standard h:commandLink with our own a4j:ajax. This not only reduces typing, but also inherits all a4j:ajax special options.

<a4j:commandLink value="#{constants.Label_DateUploaded}" action="#{handler.tableHeaderListener}" ajaxSingle="true" reRender="claimDocTable" onclick="loadClaimDocs()" styleClass="tableHeaderTxt" oncomplete="completeClaimRender()">

<f:setPropertyActionListener target="#{handler.sortField}" value="#{constants.Label_DateUploaded}"/>

</a4j:commandLink>

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Ques 6

What is rich:tooltip in RichFaces?

The rich:tooltip component creates a small non-modal pop-up that can be used to display additional information for nearly anything on the page.

<rich:toolTip id="ttBtnUploadSelectedDoc" for="helpBtnUploadSelectedDocID" layout="block">

<h:outputLabel styleClass="tooltipSpan">Use this to upload the documents selected for upload and their document properties to the document repository.<p>Shortcut: CTRL+SHIFT+U</p></h:outputLabel>

</rich:toolTip>

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What is RichFaces?

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What are the basic configurations of web.xml for Rich Faces?

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Give some examples of RichFaces Components.

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Give some examples of a4j components.

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What is a4j:commandLink in RichFaces?

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What is rich:tooltip in RichFaces?

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