RichFaces a4j:Ajax

by Online Tutorials Library July 14, 2022

RichFaces <a4j:ajax>

It allows Ajax capability to a non-Ajax component. The non-Ajax component must implement the ClientBehaviorHolder interface for all the event attributes that support behavior rendering.

We must use event attribute to the standard JSF event that triggers the behavior. If the event attribute is not defined, the behavior is triggered on the event that normally provides interaction behavior for the parent component.

RichFaces <a4j:ajax> Example

Here, in the following example, we are implementing <a4j:ajax> component. This example contains the following files.

JSF File

// ajax-event.xhtml

  <html xmlns=”http://www.w3.org/1999/xhtml”  xmlns:h=”http://xmlns.jcp.org/jsf/html”  xmlns:a4j=”http://richfaces.org/a4j”>  <h:head>  <title>a4j:ajax Tag</title>  </h:head>  <h:body>  <h:form>  <h:outputText value=”Enter Text “></h:outputText>  <h:inputText value=”#{user.name}”>  <a4j:ajax event=”keyup” render=”user-name”></a4j:ajax>  </h:inputText>  <br/>  <br/>  <h:outputText id=”user-name” value=” #{user.name}”></h:outputText>  </h:form>  </h:body>  </html>  

Managed Bean

// User.java

  import javax.faces.bean.ManagedBean;  import javax.faces.bean.RequestScoped;  @ManagedBean  @RequestScoped  public class User {  String name;  public String getName() {  return name;  }  public void setName(String name) {  this.name = name;  }  }  

Output:

Next TopicRichfaces <a4j:param>

RichFaces a4j:Ajax

RichFaces <a4j:ajax>

RichFaces <a4j:ajax> Example

JSF File

Managed Bean

Verbal Reasoning | Assertion and Reason 1

Components of Robot

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