edu.nrao.sss.webapp.faces.component
Class ForEach

java.lang.Object
  javax.faces.component.UIComponent
      javax.faces.component.UIComponentBase
          javax.faces.component.UIData
              edu.nrao.sss.webapp.faces.component.ForEach

All Implemented Interfaces:

NamingContainer, StateHolder

public class ForEach
extends UIData

This class implements a ForEach loop tag by partially overriding the default table renderer. By partially, I mean those parts of the rendering that dealt solely with rendering UIColumns are overridden or replaced to deal with all child elements and no table tags are written. This allows us to borrow the default renderer's handling of child id's and the data model and all that.

Field Summary

Fields inherited from class javax.faces.component.UIData

COMPONENT_FAMILY, COMPONENT_TYPE

Fields inherited from interface javax.faces.component.NamingContainer

SEPARATOR_CHAR

Constructor Summary

ForEach()
empty constructor

Method Summary

void	encodeBegin(FacesContext context) This method is overridden to prevent the default renderer from writing out table tags.
void	encodeChildren(FacesContext context) Overridden to render our child UI components even though they are not UIColumns.
void	encodeEnd(FacesContext context) Overridden to prevent end table tag output
void	processDecodes(FacesContext context) Overridden to properly decode our child components
void	processUpdates(FacesContext context) Overridden to properly decode our child components
void	processValidators(FacesContext context) Overridden to properly decode our child components

Methods inherited from class javax.faces.component.UIData

broadcast, getClientId, getFamily, getFirst, getFooter, getHeader, getRowCount, getRowData, getRowIndex, getRows, getValue, getVar, isRowAvailable, queueEvent, restoreState, saveState, setFirst, setFooter, setHeader, setRowIndex, setRows, setValue, setValueBinding, setVar

Methods inherited from class javax.faces.component.UIComponentBase

addFacesListener, decode, findComponent, getAttributes, getChildCount, getChildren, getFacesContext, getFacesListeners, getFacet, getFacets, getFacetsAndChildren, getId, getParent, getRenderer, getRendererType, getRendersChildren, getValueBinding, isRendered, isTransient, processRestoreState, processSaveState, removeFacesListener, restoreAttachedState, saveAttachedState, setId, setParent, setRendered, setRendererType, setTransient

Methods inherited from class java.lang.Object

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

Constructor Detail

ForEach

public ForEach()

empty constructor

Method Detail

encodeBegin

public void encodeBegin(FacesContext context)
                 throws IOException

This method is overridden to prevent the default renderer from writing out table tags. This is done by temporarily replacing the ResponseWriter in context, calling super (because super must be called to correctly handle some model interaction), and then putting the real writer back.

Overrides:

encodeBegin in class UIData

Throws:

IOException

encodeEnd

public void encodeEnd(FacesContext context)
               throws IOException

Overridden to prevent end table tag output

Overrides:

encodeEnd in class UIData

Throws:

IOException

encodeChildren

public void encodeChildren(FacesContext context)
                    throws IOException

Overridden to render our child UI components even though they are not UIColumns.

Overrides:

encodeChildren in class UIComponentBase

Throws:

IOException

processDecodes

public void processDecodes(FacesContext context)

Overridden to properly decode our child components

Overrides:

processDecodes in class UIData

processValidators

public void processValidators(FacesContext context)

Overridden to properly decode our child components

Overrides:

processValidators in class UIData

processUpdates

public void processUpdates(FacesContext context)

Overridden to properly decode our child components

Overrides:

processUpdates in class UIData