Primefaces CommandLink With Examples [Latest]

Primefaces CommandLink

Below table contains some of the basic information of Primefaces CommandLink component.

Tag	commandLink
Component Class	org.primefaces.component.commandlink.CommandLink
Component Type	org.primefaces.component.CommandLink
Component Family	org.primefaces.component
Renderer Type	org.primefaces.component.CommandLinkRenderer
Renderer Class	org.primefaces.component. commandlink.CommandLinkRenderer

Primefaces CommandLink Attributes

Name	Default	Type	Description
id	null	String	Unique identifier of the component
rendered	true	Boolean	Boolean value to specify the rendering of the component, when set to false component will not be rendered.
binding	null	Object	An el expression that maps to a server side UIComponent instance in a backing bean
value	null	String	Href value of the rendered anchor.
action	null	MethodExpr/ String	A method expression or a String outcome that’d be processed when link is clicked.
actionListener	null	MethodExpr	An actionlistener that’d be processed when link is clicked.
immediate	false	Boolean	Boolean value that determines the phaseId, when true actions are processed at apply_request_values, when false at invoke_application phase.
async	false	Boolean	When set to true, ajax requests are not queued.
process	null	String	Component(s) to process partially instead of whole view.
ajax	true	Boolean	Specifies the submit mode, when set to true(default), submit would be made with Ajax.
update	null	String	Component(s) to be updated with ajax.
onstart	null	String	Client side callback to execute before ajax request is begins.
oncomplete	null	String	Client side callback to execute when ajax request is completed.
onsuccess	null	String	Client side callback to execute when ajax request succeeds.
onerror	null	String	Client side callback to execute when ajax request fails.
global	true	Boolean	Defines whether to trigger ajaxStatus or not.
delay	null	String	If less than delay milliseconds elapses between calls to request() only the most recent one is sent and all other requests are discarded. If this option is not specified, or if the value of delay is the literal string ‘none’ without the quotes, no delay is used.
partialSubmit	false	Boolean	Enables serialization of values belonging to the partially processed components only.
resetValues	false	Boolean	If true, local values of input components to be updated within the ajax request would be reset.
ignoreAutoUpdate	false	Boolean	If true, components which autoUpdate=”true” will not be updated for this request. If not specified, or the value is false, no such indication is made.
style	null	String	Style to be applied on the anchor element
styleClass	null	String	StyleClass to be applied on the anchor element
onblur	null	String	Client side callback to execute when link loses focus.
onclick	null	String	Client side callback to execute when link is clicked.
ondblclick	null	String	Client side callback to execute when link is double clicked.
onfocus	null	String	Client side callback to execute when link receives focus.
onkeydown	null	String	Client side callback to execute when a key is pressed down over link.
onkeypress	null	String	Client side callback to execute when a key is pressed and released over link.
onkeyup	null	String	Client side callback to execute when a key is released over link.
onmousedown	null	String	Client side callback to execute when a pointer button is pressed down over link.
onmousemove	null	String	Client side callback to execute when a pointer button is moved within link.
onmouseout	null	String	Client side callback to execute when a pointer button is moved away from link.
onmouseover	null	String	Client side callback to execute when a pointer button is moved onto link.
onmouseup	null	String	Client side callback to execute when a pointer button is released over link.
accesskey	null	String	Access key that when pressed transfers focus to the link.
charset	null	String	Character encoding of the resource designated by this hyperlink.
coords	null	String	Position and shape of the hot spot on the screen for client use in image maps.
dir	null	String	Direction indication for text that does not inherit directionality. Valid values are LTR and RTL.
disabled	null	Boolean	Disables the link
hreflang	null	String	Languae code of the resource designated by the link.
rel	null	String	Relationship from the current document to the anchor specified by the link, values are provided by a space-separated list of link types.
rev	null	String	A reverse link from the anchor specified by this link to the current document, values are provided by a space-separated list of link types.
shape	null	String	Shape of hot spot on the screen, valid values are default, rect, circle and poly.
tabindex	null	Integer	Position of the button element in the tabbing order.
target	null	String	Name of a frame where the resource targeted by this link will be displayed.
title	null	String	Advisory tooltip information.
type	null	String	Type of resource referenced by the link.

Primefaces CommandLink Example

Primefaces CommandLink is similar to JSF h:commandLink except that the form is submitted with ajax by default.

simpleCommandLink.xhtml


&lt;html xmlns="https://www.w3.org/1999/xhtml"
	xmlns:ui="https://java.sun.com/jsf/facelets"
	xmlns:h="https://java.sun.com/jsf/html"
	xmlns:f="https://java.sun.com/jsf/core"
	xmlns:p="https://primefaces.org/ui"&gt;
&lt;h:head&gt;
	&lt;script name="jquery/jquery.js" library="primefaces"&gt;&lt;/script&gt;
&lt;/h:head&gt;
&lt;h:form&gt;
	&lt;p:commandLink value="Do Action" action="#{commandLinkManagedBean.doSomeAction}"&gt;&lt;/p:commandLink&gt;
&lt;/h:form&gt;
&lt;/html&gt;

<html xmlns="https://www.w3.org/1999/xhtml"

xmlns:ui="https://java.sun.com/jsf/facelets"

xmlns:h="https://java.sun.com/jsf/html"

xmlns:f="https://java.sun.com/jsf/core"

xmlns:p="https://primefaces.org/ui">

<h:head>

</h:head>

<h:form>

<p:commandLink value="Do Action" action="#{commandLinkManagedBean.doSomeAction}"></p:commandLink>

</h:form>

</html>


package com.journaldev.primefaces.beans;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean
@SessionScoped
public class CommandLinkManagedBean {
	public String doSomeAction(){
		System.out.println("CommandLink is used");
		return "";
	}
}

package com.journaldev.primefaces.beans;

import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;

@ManagedBean

@SessionScoped

public class CommandLinkManagedBean {

public String doSomeAction(){

System.out.println("CommandLink is used");

return "";

}

Below image shows the console output when you click on the Primefaces CommandLink link multiple times.

CommandLink-Simple-CommandLink-1024x552

That’s all for a quick roundup on Primefaces CommandLink component. You can download the Primefaces CommandLink example project from below link.

Primefaces CommandLink With Examples [Latest]

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