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WithoutBook LIVE Mock Interviews RichFaces Related interview subjects: 20

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Freshers / Beginner level questions & answers

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>
    <filter>
        <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 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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