oracle.jdeveloper.html
Class PickList

java.lang.Object
  |
  +--oracle.jdeveloper.html.HTMLFieldRendererImpl
        |
        +--oracle.jdeveloper.html.PickList

public class PickList

extends HTMLFieldRendererImpl

This class represents a databound picklist. It binds to data from a BC4J view object. It supports various renderings: combobox, listbox,radio group and checbox group.

Version:

PUBLIC

Field Summary

protected HTMLForm	aForm
protected java.util.Hashtable	allvalues
protected boolean	bAddNullEntry
protected boolean	bRemoveViewObject
protected boolean	bUseLineBreaks
protected java.lang.String	dataAttr
protected java.lang.String	labelAttr
protected int	nType
protected RowSet	qView
protected java.lang.String	sQuery
static int	TYPE_CHECKBOX_GROUP
static int	TYPE_COMBOBOX
static int	TYPE_LISTBOX
static int	TYPE_RADIO_GROUP
protected java.util.Hashtable	values

Fields inherited from class oracle.jdeveloper.html.HTMLFieldRendererImpl

nHeight, nLength, nWidth, sClass, sFormName, sName, sPrompt, sValue

Constructor Summary

PickList()
Constructs object.

Method Summary

protected HTMLElement	generateCheckBoxGroup()
protected HTMLElement	generateComboBox()
protected HTMLElement	generateListBox()
protected HTMLElement	generateRadioGroup()
protected java.lang.String	getRenderedString()
protected void	initializeFromRenderingContext(HTMLRenderingContext ctx)
protected void	prepareForMutliValueListGeneration()
java.lang.String	renderToString(HTMLRenderingContext ctx, RowSet rs, Row row, java.lang.String sAttribute) This method is called when the field renderers are being used from the Tag library and from the DataWebBeans.
void	setAllowNulls(boolean bSet)
void	setDataSourceInfo(ApplicationModule appModule, java.lang.String sQuery, java.lang.String labelAttr, java.lang.String dataAttr) Defines the data source information for the picklist
void	setDataSourceInfo(RowSet qView, java.lang.String labelAttr, java.lang.String dataAttr) Defines the data source information for the picklist
void	setUseLineBreaks(boolean bUseBreaks)
void	useCheckBoxGroup() Tells picklist ot render as checkbox group.
void	useComboBox() Tells picklist to render as a combo box.
void	useListBox() Tells picklist to render as listbox
void	useRadioGroup() Tells picklist ot render as radio button group

Methods inherited from class oracle.jdeveloper.html.HTMLFieldRendererImpl

getCSSClassName, getDisplayHeight, getDisplayWidth, getFieldName, getFormName, getMaxDataLength, getPromptText, getValue, setCSSClassName, setDisplayHeight, setDisplayWidth, setFieldName, setFormName, setMaxDataLength, setPromptText, setValue

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_COMBOBOX

public static final int TYPE_COMBOBOX

TYPE_LISTBOX

public static final int TYPE_LISTBOX

TYPE_CHECKBOX_GROUP

public static final int TYPE_CHECKBOX_GROUP

TYPE_RADIO_GROUP

public static final int TYPE_RADIO_GROUP

nType

protected int nType

bAddNullEntry

protected boolean bAddNullEntry

sQuery

protected java.lang.String sQuery

aForm

protected HTMLForm aForm

qView

protected RowSet qView

labelAttr

protected java.lang.String labelAttr

dataAttr

protected java.lang.String dataAttr

values

protected java.util.Hashtable values

allvalues

protected java.util.Hashtable allvalues

bRemoveViewObject

protected boolean bRemoveViewObject

bUseLineBreaks

protected boolean bUseLineBreaks

Constructor Detail

PickList

public PickList()

Constructs object. Default rendering is combo box.

Method Detail

setAllowNulls

public void setAllowNulls(boolean bSet)

setUseLineBreaks

public void setUseLineBreaks(boolean bUseBreaks)

useComboBox

public void useComboBox()

Tells picklist to render as a combo box.

useListBox

public void useListBox()

Tells picklist to render as listbox

useRadioGroup

public void useRadioGroup()

Tells picklist ot render as radio button group

useCheckBoxGroup

public void useCheckBoxGroup()

Tells picklist ot render as checkbox group.

prepareForMutliValueListGeneration

protected void prepareForMutliValueListGeneration()

generateComboBox

protected HTMLElement generateComboBox()

generateListBox

protected HTMLElement generateListBox()

generateCheckBoxGroup

protected HTMLElement generateCheckBoxGroup()

generateRadioGroup

protected HTMLElement generateRadioGroup()

setDataSourceInfo

public void setDataSourceInfo(RowSet qView,
                              java.lang.String labelAttr,
                              java.lang.String dataAttr)

Defines the data source information for the picklist

Parameters:

qView - The View object this list is bound to

labelAttr - The name of the attribute that provides the label values

dataAttr - The name of the attribute that provides the data values

setDataSourceInfo

public void setDataSourceInfo(ApplicationModule appModule,
                              java.lang.String sQuery,
                              java.lang.String labelAttr,
                              java.lang.String dataAttr)

Defines the data source information for the picklist

Parameters:

appModule - The Application Module that is used to create the view object

sQuery - The SQL SELECT that retrieves the pciklist values or a ViewObject name

labelAttr - The name of the attribute that provides the label values

dataAttr - The name of the attribute that provides the data values

getRenderedString

protected java.lang.String getRenderedString()

initializeFromRenderingContext

protected void initializeFromRenderingContext(HTMLRenderingContext ctx)

renderToString

public java.lang.String renderToString(HTMLRenderingContext ctx,
                                       RowSet rs,
                                       Row row,
                                       java.lang.String sAttribute)

Description copied from interface: HTMLFieldRenderer

This method is called when the field renderers are being used from the Tag library and from the DataWebBeans.

Overrides:

renderToString in class HTMLFieldRendererImpl