org.apache.tapestry.corelib.components
Class RadioGroup

java.lang.Object
  org.apache.tapestry.corelib.components.RadioGroup

All Implemented Interfaces:

ClientElement, Field

public class RadioGroup
extends Object
implements Field

Constructor Summary

RadioGroup()

Method Summary

String	getClientId() Returns null; the radio group does not render as a tag and so doesn't have an id to share.
String	getControlName() Returns the value used as the name attribute of the rendered element.
String	getLabel() Returns a user presentable (localized) label for the field, which may be used inside <label> elements on the client, and inside client or server-side validation error messages.
boolean	isDisabled() Returns true if the field is disabled; A disabled field will render a disabled attribute so that it is non-responsive on the client (at least, until its disabled status is changed on the client using JavaScript).
boolean	isRequired() Returns false; RadioGroup does not support declarative validation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RadioGroup

public RadioGroup()

Method Detail

getControlName

public String getControlName()

Description copied from interface: Field

Returns the value used as the name attribute of the rendered element. This value will be unique within an enclosing form, even if the same component renders multiple times.

Specified by:

getControlName in interface Field

See Also:

FormSupport.allocateControlName(String)

getLabel

public String getLabel()

Description copied from interface: Field

Returns a user presentable (localized) label for the field, which may be used inside <label> elements on the client, and inside client or server-side validation error messages.

Specified by:

getLabel in interface Field

Returns:

the label

See Also:

Label

isDisabled

public boolean isDisabled()

Description copied from interface: Field

Returns true if the field is disabled; A disabled field will render a disabled attribute so that it is non-responsive on the client (at least, until its disabled status is changed on the client using JavaScript). A disabled field will ignore any value passed up in a form submit request. Care must be taken if the disabled status of a field can change between the time the field is rendered and the time the enclosing form is submitted.

Specified by:

isDisabled in interface Field

getClientId

public String getClientId()

Returns null; the radio group does not render as a tag and so doesn't have an id to share. RadioGroup implements Field only so it can interact with the ValidationTracker.

Specified by:

getClientId in interface ClientElement

Returns:

null

isRequired

public boolean isRequired()

Returns false; RadioGroup does not support declarative validation.

Specified by:

isRequired in interface Field

Returns:

true if a non-blank value is required for the field