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PrimeFaces User Guide
Interval
ProgressBar is based on polling and 3000 milliseconds is the default interval for ajax progress bar
meaning every 3 seconds progress value will be recalculated. In order to set a different value, use
the interval attribute.
<p:progressBar interval="5000" /> 
Ajax Behavior Events
ProgressBar provides complete as the default and only ajax behavior event that is fired when the
progress is completed. Example below demonstrates how to use this event.
public class ProgressBean {
private int progress;
public void handleComplete() {
//Add a faces message
}
public int getProgress() {
return progress;
}
public void setProgress(int progress) {
this.progress = progress;
}
}
<p:progressBar value="#{progressBean.progress}" ajax="true">
<p:ajax event="complete" listener="#{progressBean.handleComplete}" 
update="messages" />
</p:progressBar>
<p:growl id="messages" />
Display Only
Assume you have a process like a ticket purchase that spans various pages where each page has
different use cases such as customer info, seat selection, billing, payment and more. In order to
display static value of the process on each page, you can use a static progressBar.
<p:progressBar value="50" displayOnly="true" /> 
Client Side API
Widget: PrimeFaces.widget.ProgressBar
Method
Params
Return Type
Description
getValue()
-
Number
Returns current value
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PrimeFaces User Guide
Method
Params
Return Type
Description
setValue(value)
value: Value to display
void
Sets current value
start()
-
void
Starts ajax progress bar
cancel()
-
void
Stops ajax progress bar
Skinning
ProgressBar resides in a main container which style and styleClass attributes apply. Following is the
list of structural style classes;
Style Class
Applies
.ui-progressbar
Main container.
.ui-progressbar-value
Value of the progressbar
.ui-progressbar-label
Progress label.
As skinning style classes are global, see the main theming section for more information.
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PrimeFaces User Guide
3.93 RadioButton
RadioButton is a helper component of SelectOneRadio to implement custom layouts.
Info
Tag
radioButton
Component Class
org.primefaces.component.radiobutton.RadioButton
Component Type
org.primefaces.component.RadioButton
Component Family org.primefaces.component
Renderer Type
org.primefaces.component.RadioButtonRenderer
Renderer Class
org.primefaces.component.radiobutton.RadioButtonRenderer
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
disabled
false
Boolean
Disabled the component.
itemIndex
null
Integer
Index of the selectItem of selectOneRadio.
onchange
null
String
Client side callback to execute on state change.
for
null
String
Id of the selectOneRadio to attach to.
style
null
String
Inline style of the component.
styleClass
null
String
Style class of the container.
tabindex
null
String
Specifies the tab order of element in tab navigation.
Getting started with RadioButton
See custom layout part in SelectOneRadio section for more information.
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PrimeFaces User Guide
3.94 Rating
Rating component features a star based rating system.
Info
Tag
rating
Component Class
org.primefaces.component.rating.Rating
Component Type
org.primefaces.component.Rating
Component Family
org.primefaces.component
Renderer Type
org.primefaces.component.RatingRenderer
Renderer Class
org.primefaces.component.rating.RatingRenderer
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
Object
Value of the component than can be either an EL 
expression of a literal text
converter
null
Converter/
String
An el expression or a literal text that defines a 
converter for the component. When it’s an EL 
expression, it’s resolved to a converter instance. In
case it’s a static text, it must refer to a converter id
immediate
0
Boolean
Boolean value that specifies the lifecycle phase 
the valueChangeEvents should be processed, 
when true the events will be fired at "apply request
values", if immediate is set to false, valueChange 
Events are fired in "process validations"
phase
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PrimeFaces User Guide
Name
Default
Type
Description
required
false
Boolean
Marks component as required
validator
null
MethodExpr
A method binding expression that refers to a 
method validationg the input
valueChangeListener
null
MethodExpr
A method binding expression that refers to a 
method for handling a valuchangeevent
requiredMessage
null
String
Message to be displayed when required field 
validation fails.
converterMessage
null
String
Message to be displayed when conversion fails.
validatorMessage
null
String
Message to be displayed when validation fields.
widgetVar
null
String
Name of the client side widget.
stars
5
Integer
Number of stars to display
disabled
false
Boolean
Disables user interaction
readonly
false
Boolean
Disables user interaction without disabled visuals.
onRate
null
String
Client side callback to execute when rate happens.
style
null
String
Inline style of the component.
styleClass
null
String
Style class of the component.
cancel
true
Boolean
When enabled, displays a cancel icon to reset.
Getting Started with Rating
Rating is an input component that takes an integer variable as its value.
public class RatingBean {
private Integer rating;
//getter-setter
}
<p:rating value="#{ratingBean.rating}" />
Number of Stars
Default number of stars is 5, if you need less or more stars use the stars attribute. Following rating 
consists of 10 stars.
<p:rating value="#{ratingBean.rating}" stars="10"/>
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PrimeFaces User Guide
Display Value Only
In cases where you only want to use the rating component to display the rating value and disallow
user  interaction,  set readonly  to  true.  Using disabled attribute does the same but adds disabled
visual styles.
Ajax Behavior Events
Rating  provides rate and cancel as ajax behavior events. A defined listener for rate event will be
executed by  passing an org.primefaces.event.RateEvent as a parameter and cancel event will be
invoked with no parameter.
<p:rating value="#{ratingBean.rating}">
<p:ajax event="rate" listener="#{ratingBean.handleRate}" update="msgs" />
<p:ajax event="cancel" listener="#{ratingBean.handleCancel}" update="msgs" />
</p:rating>
<p:messages id="msgs" />
public class RatingBean {
private Integer rating;
public void handleRate(RateEvent rateEvent) {
Integer rate = (Integer) rateEvent.getRating();
//Add facesmessage
}
public void handleCancel() {
//Add facesmessage
}
//getter-setter
}
Client Side Callbacks
onRate is called when a star is selected with value as the only parameter.
<p:rating value="#{ratingBean.rating}" onRate="alert('You rated: ' + value)" />
Client Side API
Widget: PrimeFaces.widget.Rating
Method
Params
Return Type
Description
getValue()
-
Number
Returns the current value
setValue(value)
value: Value to set
void
Updates rating value with provided one.
disable()
-
void
Disables component.
enable()
-
void
Enables component.
reset()
-
void
Clears the rating.
376
PrimeFaces User Guide
Skinning
Rating resides in a main container which style and styleClass attributes apply. Following is the list 
of structural style classes;
Style Class
Applies
.ui-rating
Main container element.
.ui-rating-cancel
Cancel icon
.ui-rating
Default star
.ui-rating-on
Active star
377
PrimeFaces User Guide
3.95 RemoteCommand
RemoteCommand provides a way to execute backing bean methods directly from javascript.
Info
Tag
remoteCommand
Component Class
org.primefaces.component.remotecommand.RemoteCommand
Component Type
org.primefaces.component.RemoteCommand
Component Family
org.primefaces.component
Renderer Type
org.primefaces.component.RemoteCommandRenderer
Renderer Class
org.primefaces.component.remotecommand.RemoteCommandRenderer
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
action
null
Method
Expr
A method expression that’d be processed in the partial 
request caused by uiajax.
actionListener
null
Method
Expr
An actionlistener that’d be processed in the partial request 
caused by uiajax.
immediate
false
Boolean Boolean value that determines the phaseId, when true 
actions are processed at apply_request_values, when false 
at invoke_application phase.
name
null
String
Name of the command
async
false
Boolean When set to true, ajax requests are not queued.
process
null
String
Component(s) to process partially instead of whole view.
update
null
String
Component(s) to update with ajax.
onstart
null
String
Javascript handler to execute before ajax request is begins.
oncomplete
null
String
Javascript handler to execute when ajax request is 
completed.
onsuccess
null
String
Javascript handler to execute when ajax request succeeds.
onerror
null
String
Javascript handler to execute when ajax request fails.
378
PrimeFaces User Guide
Name
Default
Type
Description
global
true
Boolean Global ajax requests are listened by ajaxStatus component, 
setting global to false will not trigger ajaxStatus.
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.
partialSubmitFilter
null
String
Selector to use when partial submit is on, default is ":input" 
to select all descendant inputs of a partially processed 
components.
autoRun
false
Boolean When enabled command is executed on page load.
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.
timeout
0
Integer
Timeout for the ajax request in milliseconds.
Getting started with RemoteCommand
RemoteCommand is used by invoking the command from your javascript code.
<p:remoteCommand name="increment" actionListener="#{counter.increment}"
out="count" />
<h:outputText id="count" value="#{counter.count}" />
<script type="text/javascript">
function customfunction() {
//your custom code
increment();
//makes a remote call
}
</script>
That’s it whenever you execute your custom javascript function(eg customfunction()), a remote call
will be made, actionListener is processed and output text is updated.  Note that remoteCommand
must be nested inside a form.
Passing Parameters
Remote command can send dynamic parameters in the following way;
379
PrimeFaces User Guide
increment([{name:'x', value:10}, {name:'y', value:20}]);
380
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