Package com.sun.faces.renderkit.html_basic

Class RadioRenderer

java.lang.Object

jakarta.faces.render.Renderer

com.sun.faces.renderkit.html_basic.HtmlBasicRenderer

com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer

com.sun.faces.renderkit.html_basic.MenuRenderer

com.sun.faces.renderkit.html_basic.SelectManyCheckboxListRenderer

com.sun.faces.renderkit.html_basic.RadioRenderer

All Implemented Interfaces:

ComponentSystemEventListener, FacesListener, EventListener

public class RadioRenderer
extends SelectManyCheckboxListRenderer
implements ComponentSystemEventListener

ReadoRenderer is a class that renders the current value of UISelectOne or UISelectMany component as a list of radio buttons

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	RadioRenderer.Group	Keeps track of all <h:selectOneRadio group> detail.
static class	RadioRenderer.GroupSelectItem	Used when a <h:selectOneRadio group> doesn't have a select item; it will then get it via first radio of the group.

Nested classes/interfaces inherited from class com.sun.faces.renderkit.html_basic.HtmlBasicRenderer

HtmlBasicRenderer.OptionComponentInfo, HtmlBasicRenderer.Param

Field Summary

Fields inherited from class com.sun.faces.renderkit.html_basic.HtmlBasicRenderer

EMPTY_PARAMS, logger

Fields inherited from class jakarta.faces.render.Renderer

PASSTHROUGH_RENDERER_LOCALNAME_KEY

Constructor Summary

Constructors

Constructor	Description
RadioRenderer()

Method Summary

Modifier and Type	Method	Description
void	decode(FacesContext context, UIComponent component)	This override delegates to decodeGroup(FacesContext context, UISelectOne radio, Group group) when 'group' attribute is set.
protected void	decodeGroup(FacesContext context, UISelectOne radio, RadioRenderer.Group group)	The difference with default decoding is: Submitted value is obtained by group name.
void	encodeEnd(FacesContext context, UIComponent component)	This override delegates to encodeEndGroup(FacesContext context, UISelectOne radio, Group group) when 'group' attribute is set.
protected void	encodeEndGroup(FacesContext context, UISelectOne radio, RadioRenderer.Group group)	The difference with default encoding is: Every radio button of same 'group' will have same 'name' attribute rendered, relative to UIForm parent.
protected static RadioRenderer.Group	getGroup(FacesContext context, UISelectOne radio)
protected boolean	isChecked(FacesContext context, UISelectOne radio, Object itemValue)
void	processEvent(ComponentSystemEvent event)	After adding component to view, if component has group attribute set, then pre-collect the components by group.
protected void	renderInput(FacesContext context, ResponseWriter writer, UIComponent component, String clientId, Object itemValue, Converter<?> converter, boolean checked, boolean disabled, RadioRenderer.Group group)
protected void	renderLabel(ResponseWriter writer, UIComponent component, String forClientId, SelectItem curItem, HtmlBasicRenderer.OptionComponentInfo optionInfo)
protected void	renderOption(FacesContext context, UIComponent component, Converter converter, SelectItem curItem, Object currentSelections, Object[] submittedValues, Boolean newTableRow, int itemNumber, HtmlBasicRenderer.OptionComponentInfo optionInfo)

Methods inherited from class com.sun.faces.renderkit.html_basic.SelectManyCheckboxListRenderer

isBehaviorSource, renderBeginText, renderEndText

Methods inherited from class com.sun.faces.renderkit.html_basic.MenuRenderer

bestGuess, cloneValue, coerceToModelType, containsaValue, convertSelectManyValue, convertSelectManyValuesForArray, convertSelectManyValuesForCollection, convertSelectManyValuesForModel, convertSelectOneValue, createCollection, createCollectionFromHint, encodeBegin, getConvertedValue, getCurrentSelectedValues, getMultipleText, getSubmittedSelectedValues, isHideNoSelection, isSelected, renderOption, renderOptions, renderSelect, writeDefaultSize

Methods inherited from class com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer

getNonOnChangeBehaviors, getNonOnClickSelectBehaviors, getValue, setSubmittedValue

Methods inherited from class com.sun.faces.renderkit.html_basic.HtmlBasicRenderer

augmentIdReference, convertClientId, decodeBehaviors, encodeRecursive, getBehaviorParameters, getChildren, getCurrentValue, getEndTextToRender, getFacet, getForComponent, getFormattedValue, getFormattedValue, getMessageIter, getParamList, getPassThruBehaviors, getRendersChildren, rendererParamsNotNull, shouldDecode, shouldEncode, shouldEncodeChildren, shouldWriteIdAttribute, writeIdAttributeIfNecessary

Methods inherited from class jakarta.faces.render.Renderer

encodeChildren

Methods inherited from class java.lang.Object

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

Constructor Details

RadioRenderer

public RadioRenderer()

Method Details

processEvent

public void processEvent(ComponentSystemEvent event)
                  throws AbortProcessingException

After adding component to view, if component has group attribute set, then pre-collect the components by group.

Specified by:

processEvent in interface ComponentSystemEventListener

Parameters:

event - the ComponentSystemEvent instance that is being processed.

Throws:

AbortProcessingException - if lifecycle processing should cease for this request.

decode

public void decode(FacesContext context,
 UIComponent component)

This override delegates to decodeGroup(FacesContext context, UISelectOne radio, Group group) when 'group' attribute is set. It will only decode when the current component is the first one of group.

Overrides:

decode in class MenuRenderer

Parameters:

context - FacesContext for the request we are processing

component - UIComponent to be decoded.

encodeEnd

public void encodeEnd(FacesContext context,
 UIComponent component)
               throws IOException

This override delegates to encodeEndGroup(FacesContext context, UISelectOne radio, Group group) when 'group' attribute is set.

Overrides:

encodeEnd in class SelectManyCheckboxListRenderer

Parameters:

context - FacesContext for the response we are creating

component - UIComponent to be rendered

Throws:

IOException - if an input/output error occurs while rendering

decodeGroup

protected void decodeGroup(FacesContext context,
 UISelectOne radio,
 RadioRenderer.Group group)

The difference with default decoding is:

• Submitted value is obtained by group name.
• Submitted value is prefixed with client ID of radio button component, this need to be compared and trimmed.
• If any submitted value does not belong to current radio button component, reset its value.

encodeEndGroup

protected void encodeEndGroup(FacesContext context,
 UISelectOne radio,
 RadioRenderer.Group group)
                       throws IOException

The difference with default encoding is:

1. Every radio button of same 'group' will have same 'name' attribute rendered, relative to UIForm parent.
2. The 'value' attribute of every radio button is prefixed with client ID of radio button component itself.
3. No additional (table) markup is being rendered.
4. Label, if any, is rendered directly after radio button element, without additional markup.

Throws:

IOException

isChecked

protected boolean isChecked(FacesContext context,
 UISelectOne radio,
 Object itemValue)

renderOption

protected void renderOption(FacesContext context,
 UIComponent component,
 Converter converter,
 SelectItem curItem,
 Object currentSelections,
 Object[] submittedValues,
 Boolean newTableRow,
 int itemNumber,
 HtmlBasicRenderer.OptionComponentInfo optionInfo)
                     throws IOException

Overrides:

renderOption in class SelectManyCheckboxListRenderer

Throws:

IOException

renderInput

protected void renderInput(FacesContext context,
 ResponseWriter writer,
 UIComponent component,
 String clientId,
 Object itemValue,
 Converter<?> converter,
 boolean checked,
 boolean disabled,
 RadioRenderer.Group group)
                    throws IOException

Throws:

IOException

renderLabel

protected void renderLabel(ResponseWriter writer,
 UIComponent component,
 String forClientId,
 SelectItem curItem,
 HtmlBasicRenderer.OptionComponentInfo optionInfo)
                    throws IOException

Throws:

IOException

getGroup

protected static RadioRenderer.Group getGroup(FacesContext context,
 UISelectOne radio)