net.sf.tacos.ajax.components
Class Radio

java.lang.Object
  org.apache.hivemind.impl.BaseLocatable
      org.apache.tapestry.AbstractComponent
          net.sf.tacos.ajax.components.Radio

All Implemented Interfaces:

Locatable, LocationHolder, org.apache.tapestry.IComponent, org.apache.tapestry.IRender

public abstract class Radio
extends org.apache.tapestry.AbstractComponent

Implements a component that manages an HTML <input type=radio> form element. Such a component must be wrapped (possibly indirectly) inside a RadioGroup component. [Component Reference]

Radio and RadioGroup are generally not used (except for very special cases). Instead, a PropertySelection component is used.

Author:

Howard Lewis Ship

Constructor Summary

Radio()

Method Summary

abstract AjaxWebRequest	getAjaxRequest() Injected ajax request
abstract org.apache.tapestry.services.ExpressionEvaluator	getExpressionEvaluator() Injected ognl parser
abstract String	getIdParameter() Should be connected to a parameter named "id" (annotations would be helpful here!).
abstract Object	getValue() The value selected
abstract boolean	isDisabled() Whether or not disabled in form
protected void	renderComponent(org.apache.tapestry.IMarkupWriter writer, org.apache.tapestry.IRequestCycle cycle) Renders the form element, or responds when the form containing the element is submitted (by checking Form#isRewinding().

Methods inherited from class org.apache.tapestry.AbstractComponent

addAsset, addBody, addComponent, checkActiveLock, cleanupAfterRender, enterActiveState, finishLoad, finishLoad, format, format, format, format, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getBody, getBodyCount, getComponent, getComponents, getContainedComponent, getContainer, getExtendedId, getId, getIdPath, getListeners, getMessage, getMessages, getNamespace, getPage, getProperty, getSpecification, isInActiveState, isParameterBound, isRendering, pageEndRender, prepareForRender, render, renderBody, renderInformalParameters, setBinding, setContainedComponent, setContainer, setId, setNamespace, setPage, setProperty, toString

Methods inherited from class org.apache.hivemind.impl.BaseLocatable

getLocation, setLocation

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hivemind.LocationHolder

setLocation

Methods inherited from interface org.apache.hivemind.Locatable

getLocation

Constructor Detail

Radio

public Radio()

Method Detail

getAjaxRequest

public abstract AjaxWebRequest getAjaxRequest()

Injected ajax request

Parameters:

ajaxRequest -

getExpressionEvaluator

public abstract org.apache.tapestry.services.ExpressionEvaluator getExpressionEvaluator()

Injected ognl parser

Parameters:

expressionEvaluator -

getIdParameter

public abstract String getIdParameter()

Should be connected to a parameter named "id" (annotations would be helpful here!). For components w/o such a parameter, this will simply return null.

renderComponent

protected void renderComponent(org.apache.tapestry.IMarkupWriter writer,
                               org.apache.tapestry.IRequestCycle cycle)

Renders the form element, or responds when the form containing the element is submitted (by checking Form#isRewinding().

Specified by:

renderComponent in class org.apache.tapestry.AbstractComponent

isDisabled

public abstract boolean isDisabled()

Whether or not disabled in form

Returns:

getValue

public abstract Object getValue()

The value selected

Returns: