org.apache.wicket.markup.html.form
Class RadioGroup<T>

java.lang.Object
  org.apache.wicket.Component
      org.apache.wicket.MarkupContainer
          org.apache.wicket.markup.html.WebMarkupContainer
              org.apache.wicket.markup.html.form.LabeledWebMarkupContainer
                  org.apache.wicket.markup.html.form.FormComponent<T>
                      org.apache.wicket.markup.html.form.RadioGroup<T>

Type Parameters:

T - The model object type

All Implemented Interfaces:

Serializable, IClusterable, IConverterLocator, IRequestListener, IFormModelUpdateListener, IFormVisitorParticipant, ILabelProvider<String>, IOnChangeListener

public class RadioGroup<T>
extends FormComponent<T>
implements IOnChangeListener

Component used to connect instances of Radio components into a group. Instances of Radio have to be in the component hierarchy somewhere below the group component. The model object of the group is set to the model object of the selected radio component or null if none selected. ie

    <span wicket:id="radiochoicegroup">
      ...
      <input type="radio" wicket:id="singleradiochoice1">choice 1</input>
      ...
      <input type="radio" wicket:id="singleradiochoice2">choice 2</input>
      ...
    </span>
 

Author:

Igor Vaynberg, Sven Meier (svenmeier)

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wicket.markup.html.form.FormComponent

FormComponent.AbstractVisitor, FormComponent.IVisitor

Nested classes/interfaces inherited from class org.apache.wicket.Component

Component.ComponentModelChange, Component.EnabledChange, Component.VisibilityChange

Field Summary

Fields inherited from class org.apache.wicket.markup.html.form.FormComponent

FLAG_CONVERT_EMPTY_INPUT_STRING_TO_NULL, VALUE_SEPARATOR

Fields inherited from class org.apache.wicket.Component

ENABLE, FLAG_CONFIGURED, FLAG_INITIALIZED, FLAG_REMOVING_FROM_HIERARCHY, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED6, FLAG_RESERVED7, FLAG_RESERVED8, PARENT_PATH, PATH_SEPARATOR, RENDER

Fields inherited from interface org.apache.wicket.markup.html.form.IOnChangeListener

INTERFACE

Constructor Summary

RadioGroup(String id)

RadioGroup(String id, IModel<T> model)

Method Summary

protected T	convertValue(String[] input) Subclasses should overwrite this if the conversion is not done through the type field and the IConverter.
protected boolean	getStatelessHint() Returns whether the component can be stateless.
protected void	onComponentTag(ComponentTag tag) Processes the component tag.
void	onSelectionChanged() Called when a selection changes.
protected void	onSelectionChanged(Object newSelection) Template method that can be overridden by clients that implement IOnChangeListener to be notified by onChange events of a select element.
protected boolean	supportsPersistence() Radio group does not support persistence through cookies
protected boolean	wantOnSelectionChangedNotifications()

Methods inherited from class org.apache.wicket.markup.html.form.FormComponent

add, add, checkRequired, clearInput, convertInput, error, getConvertedInput, getDefaultLabel, getDefaultLabel, getForm, getInput, getInputAsArray, getInputName, getModel, getModelObject, getModelValue, getRawInput, getType, getValidatorKeyPrefix, getValidators, getValue, hasRawInput, inputAsInt, inputAsInt, inputAsIntArray, inputChanged, internalOnModelChanged, invalid, isInputNullable, isMultiPart, isPersistent, isRequired, isValid, newValidatable, onDetach, onDisabled, onInvalid, onValid, processChildren, processInput, setConvertedInput, setLabel, setModel, setModelObject, setModelValue, setModelValue, setPersistent, setRequired, setType, shouldTrimInput, trim, updateModel, valid, validate, validateRequired, validateValidators, visitComponentsPostOrder, visitFormComponentsPostOrder

Methods inherited from class org.apache.wicket.markup.html.form.LabeledWebMarkupContainer

getLabel, setLabelInternal

Methods inherited from class org.apache.wicket.markup.html.WebMarkupContainer

getMarkupType, getWebPage, getWebRequest

Methods inherited from class org.apache.wicket.MarkupContainer

add, addOrReplace, autoAdd, autoAdd, contains, findMarkupStream, get, get, getAssociatedMarkupStream, getMarkupStream, hasAssociatedMarkup, internalAdd, isTransparentResolver, iterator, iterator, newMarkupResourceStream, onAfterRenderChildren, onComponentTagBody, onRender, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderComponentTagBody, renderNext, replace, setDefaultModel, setMarkupStream, size, swap, toString, toString, visitChildren, visitChildren

Methods inherited from class org.apache.wicket.Component

add, addStateChange, afterRender, beforeRender, callOnBeforeRenderIfNotVisible, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, configure, continueToOriginalDestination, debug, detach, detachBehaviors, detachModel, detachModels, determineVisibility, error, exceptionMessage, fatal, findPage, findParent, findParentWithAssociatedMarkup, getAjaxRegionMarkupId, getApplication, getBehaviors, getBehaviors, getBehaviorsRawList, getClassRelativePath, getComponentBorder, getConverter, getConverter, getDefaultModel, getDefaultModelObject, getDefaultModelObjectAsString, getDefaultModelObjectAsString, getEscapeModelStrings, getFeedbackMessage, getFlag, getFlag, getId, getInnermostModel, getInnermostModel, getLocale, getLocalizer, getMarkupAttributes, getMarkupId, getMarkupId, getMarkupIdImpl, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getResponse, getSession, getSizeInBytes, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, initModel, internalAttach, internalDetach, internalOnAttach, internalOnDetach, isActionAuthorized, isAncestorOf, isAttached, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isRenderAllowed, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, locateMarkupStream, markAttached, markRendering, modelChanged, modelChanging, onAfterRender, onAttach, onBeforeRender, onBeginRequest, onConfigure, onEndRequest, onInitialize, onModelChanged, onModelChanging, onRemove, prepareForRender, prepareForRender, redirectToInterceptPage, remove, remove, render, render, renderComponent, renderComponent, renderComponentTag, rendered, renderHead, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, setAuto, setComponentBorder, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setFlag, setIgnoreAttributeModifier, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setRedirect, setRenderBodyOnly, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, urlFor, urlFor, urlFor, urlFor, urlFor, urlFor, visitParents, warn, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

RadioGroup

public RadioGroup(String id)

See Also:

WebMarkupContainer.WebMarkupContainer(String)

RadioGroup

public RadioGroup(String id,
                  IModel<T> model)

Parameters:

id -

model -

See Also:

WebMarkupContainer.WebMarkupContainer(String, IModel)

Method Detail

wantOnSelectionChangedNotifications

protected boolean wantOnSelectionChangedNotifications()

getStatelessHint

protected boolean getStatelessHint()

Description copied from class: Component

Returns whether the component can be stateless. Also the component behaviors must be stateless, otherwise the component will be treat as stateful. In order for page to be stateless (and not to be stored in session), all components (and component behaviors) must be stateless.

Overrides:

getStatelessHint in class Component

Returns:

whether the component can be stateless

See Also:

Component.getStatelessHint()

convertValue

protected T convertValue(String[] input)
                  throws ConversionException

Description copied from class: FormComponent

Subclasses should overwrite this if the conversion is not done through the type field and the IConverter. WARNING: this method may be removed in future versions. If conversion fails then a ConversionException should be thrown

Overrides:

convertValue in class FormComponent<T>

Parameters:

input - The value can be the getInput() or through a cookie

Returns:

The converted value. default returns just the given value

Throws:

ConversionException - If input can't be converted

See Also:

FormComponent.convertValue(String[])

onComponentTag

protected void onComponentTag(ComponentTag tag)

Description copied from class: FormComponent

Processes the component tag.

Overrides:

onComponentTag in class FormComponent<T>

Parameters:

tag - Tag to modify

See Also:

FormComponent.onComponentTag(org.apache.wicket.markup.ComponentTag)

onSelectionChanged

public final void onSelectionChanged()

Called when a selection changes.

Specified by:

onSelectionChanged in interface IOnChangeListener

onSelectionChanged

protected void onSelectionChanged(Object newSelection)

Template method that can be overridden by clients that implement IOnChangeListener to be notified by onChange events of a select element. This method does nothing by default.

Called when a option is selected of a dropdown list that wants to be notified of this event. This method is to be implemented by clients that want to be notified of selection events.

Parameters:

newSelection - The newly selected object of the backing model NOTE this is the same as you would get by calling getModelObject() if the new selection were current

supportsPersistence

protected final boolean supportsPersistence()

Radio group does not support persistence through cookies

Overrides:

supportsPersistence in class FormComponent<T>

Returns:

True if this type of FormComponent can be persisted.

See Also:

FormComponent.supportsPersistence()