com.ibm.xsp.component
Class UIDataIterator

java.lang.Object
  javax.faces.component.UIComponent
      javax.faces.component.UIComponentBase
          com.ibm.xsp.component.UIDataIterator

All Implemented Interfaces:

FacesAjaxComponent, FacesDataIterator, FacesRefreshableComponent, FacesRowIndex, FacesDefinitionClass, javax.faces.component.NamingContainer, javax.faces.component.StateHolder

Direct Known Subclasses:

XspDataIterator

public class UIDataIterator
extends javax.faces.component.UIComponentBase
implements javax.faces.component.NamingContainer, FacesDataIterator, FacesDefinitionClass, FacesRefreshableComponent, FacesAjaxComponent

Iterates over a data set with its children creating only one instance of the children. Not intended to be subclassed.

Nested Class Summary

Nested classes/interfaces inherited from class javax.faces.component.UIComponentBase

javax.faces.component.UIComponentBase.AggregatedIterator, javax.faces.component.UIComponentBase.UnmodifiableIterator

Nested classes/interfaces inherited from class javax.faces.component.UIComponent

javax.faces.component.UIComponent.StateMap, javax.faces.component.UIComponent.StateMapEntry

Field Summary

static java.lang.String	AJAX_GETROWS
static java.lang.String	COMPONENT_FAMILY
static java.lang.String	COMPONENT_TYPE
static int	DEFAULT_ROWS_PER_PAGE This is a default value that will be applied if "rows" is not set or is less than 1

Fields inherited from class javax.faces.component.UIComponentBase

EMPTY_ITERATOR

Fields inherited from class javax.faces.component.UIComponent

_xspStateId

Constructor Summary

UIDataIterator()

Method Summary

void	_xspCleanTransientData()
void	broadcast(javax.faces.event.FacesEvent event)
protected java.lang.String	computeDataModelKey() Computes Data model key based on parent DataIterators.
protected javax.faces.model.DataModel	createDataModel() Helper method for creating the data model based on the components value.
void	encodeBegin(javax.faces.context.FacesContext context)
void	encodeChildren(javax.faces.context.FacesContext context)
void	encodeEnd(javax.faces.context.FacesContext context)
java.lang.String	getAjaxUrl(javax.faces.context.FacesContext context, java.lang.String verb)
java.lang.String	getAjaxUrl(java.lang.String verb)
java.lang.String	getClientId(javax.faces.context.FacesContext context)
javax.faces.model.DataModel	getDataModel() Helper method to return the current DataModel instance
protected DataSource	getDataSource()
java.lang.String	getDir()
java.lang.String	getFamily()
int	getFirst()
int	getIndex() Deprecated. Use getRowIndex() instead, to match the UIData class and the FacesDataIterator interface.
java.lang.String	getIndexVar() Return the value of the indexVar property.
java.lang.Class<? extends javax.faces.component.UIComponent>	getJavaClass(com.ibm.xsp.page.parse.types.FacesInstance instance) The class returned must be a non-abstract UIComponent class, with a public, zero-arguments constructor.
java.lang.String	getNonChildClientId(javax.faces.context.FacesContext context)
boolean	getRendersChildren()
int	getRowCount() Return the number of rows in the underlying data model.
int	getRowCount(int maxCount)
int	getRowIndex()
int	getRows()
java.lang.Object	getValue()
java.lang.String	getVar()
boolean	gotoFirstPage() Go to the first page in the data control.
boolean	gotoLastPage() Go to the last page in the data control.
boolean	gotoNextPage() Go to the next page in the data control.
boolean	gotoPage(int page) Go to the specified page in the data control.
boolean	gotoPreviousPage() Go to the previous page in the data control.
boolean	gotoRow(int row) Go to the specified row in the data control.
boolean	handles(javax.faces.context.FacesContext context) Check if the pathinfo request is for this target ajax component
boolean	invokeOnComponent(javax.faces.context.FacesContext context, java.lang.String clientId, javax.faces.component.ContextCallback callback)
protected boolean	isNestedInUIIterator()
boolean	isRemoveRepeat() Return the value of the removeRepeat property.
boolean	isRepeatControls() Return the value of the repeatControls property.
boolean	isRowAvailable()
protected void	processAjaxGetRows(javax.faces.context.FacesContext context)
void	processAjaxRequest(javax.faces.context.FacesContext context) Process the request for this target ajax component
void	processDecodes(javax.faces.context.FacesContext context)
void	processUpdates(javax.faces.context.FacesContext context)
void	processValidators(javax.faces.context.FacesContext context)
protected java.util.List<DataPublisher.ShadowedObject>	publishControlData(javax.faces.context.FacesContext context)
protected void	pushVars(javax.faces.context.FacesContext context, javax.faces.model.DataModel model)
void	queueEvent(javax.faces.event.FacesEvent event)
protected void	resetDataModel() resets data model
void	restoreState(javax.faces.context.FacesContext context, java.lang.Object _state)
protected void	restoreValueHolderState(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component)
protected void	revokeControlData(java.util.List<DataPublisher.ShadowedObject> shadowedObjects, javax.faces.context.FacesContext context)
java.lang.Object	saveState(javax.faces.context.FacesContext context)
protected void	saveValueHolderState(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component)
void	setDir(java.lang.String dir)
void	setFirst(int first)
void	setIndex(int index) Deprecated. use setRowIndex(int) instead, to match the UIData class
void	setIndexVar(java.lang.String indexVar) Set the value of the indexVar property.
void	setRemoveRepeat(boolean remove) Set the value of the removeRepeat property.
void	setRepeatControls(boolean repeatControls) Set the value of the repeatControls property.
void	setRowIndex(int index)
void	setRows(int rows)
void	setValue(java.lang.Object o)
void	setValueBinding(java.lang.String name, javax.faces.el.ValueBinding binding)
void	setVar(java.lang.String var)
boolean	visitTree(javax.faces.component.visit.VisitContext context, javax.faces.component.visit.VisitCallback callback)

Methods inherited from class javax.faces.component.UIComponentBase

_xspGetReadOnlyObj, _xspGetRendererData, _xspRemoveReadOnlyObj, _xspRemoveRendererData, _xspSetIdUnchecked, _xspSetReadOnlyObj, _xspSetRendererData, addFacesListener, decode, findComponent, getAttributes, getChildCount, getChildren, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacets, getFacetsAndChildren, getId, getParent, getRenderer, getRendererType, getValueBinding, isRendered, isTransient, processRestoreState, processSaveState, removeFacesListener, restoreAttachedState, saveAttachedState, setId, setParent, setRendered, setRendererType, setTransient

Methods inherited from class javax.faces.component.UIComponent

_xspGetStateId, _xspGetStateMap, _xspRestoreAttribute, _xspRestoreState, _xspSaveState, isVisitable, markInitialState, setControlState

Methods inherited from class java.lang.Object

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

Field Detail

COMPONENT_TYPE

public static final java.lang.String COMPONENT_TYPE

See Also:

Constant Field Values

COMPONENT_FAMILY

public static final java.lang.String COMPONENT_FAMILY

See Also:

Constant Field Values

DEFAULT_ROWS_PER_PAGE

public static final int DEFAULT_ROWS_PER_PAGE

This is a default value that will be applied if "rows" is not set or is less than 1

See Also:

Constant Field Values

AJAX_GETROWS

public static final java.lang.String AJAX_GETROWS

See Also:

Constant Field Values

Constructor Detail

UIDataIterator

public UIDataIterator()

Method Detail

_xspCleanTransientData

public void _xspCleanTransientData()

Overrides:

_xspCleanTransientData in class javax.faces.component.UIComponentBase

getFamily

public java.lang.String getFamily()

Specified by:

getFamily in class javax.faces.component.UIComponent

getJavaClass

public java.lang.Class<? extends javax.faces.component.UIComponent> getJavaClass(com.ibm.xsp.page.parse.types.FacesInstance instance)

Description copied from interface: FacesDefinitionClass

The class returned must be a non-abstract UIComponent class, with a public, zero-arguments constructor.

Note, none of the properties or attributes will have been set on this UIComponent when this method is invoked - only the constructor will have been called. This UIComponent will then be discarded after invoking this method.

The implementation is expected to examine the properties of the tag in the FacesInstance to decide which runtime class to return. (If the implementation always returns the same class, then this mechanism need not be used - instead just declare the tag's java class as being that runtime class)

Specified by:

getJavaClass in interface FacesDefinitionClass

Parameters:

instance - an instance of a tag in an .xsp, where the java class defined for the tag is this UIComponent class.

Returns:

getDataModel

public javax.faces.model.DataModel getDataModel()

Helper method to return the current DataModel instance

Specified by:

getDataModel in interface FacesDataIterator

getDataSource

protected DataSource getDataSource()

createDataModel

protected javax.faces.model.DataModel createDataModel()

Helper method for creating the data model based on the components value.

Returns:

computeDataModelKey

protected java.lang.String computeDataModelKey()

Computes Data model key based on parent DataIterators.

Returns:

resetDataModel

protected void resetDataModel()

resets data model

gotoFirstPage

public boolean gotoFirstPage()

Go to the first page in the data control.

Returns:

gotoPreviousPage

public boolean gotoPreviousPage()

Go to the previous page in the data control.

Returns:

gotoNextPage

public boolean gotoNextPage()

Go to the next page in the data control.

Returns:

gotoLastPage

public boolean gotoLastPage()

Go to the last page in the data control.

Returns:

gotoRow

public boolean gotoRow(int row)

Go to the specified row in the data control.

Returns:

gotoPage

public boolean gotoPage(int page)

Go to the specified page in the data control.

Returns:

getDir

public java.lang.String getDir()

setDir

public void setDir(java.lang.String dir)

getFirst

public int getFirst()

Specified by:

getFirst in interface FacesDataIterator

Returns:

Returns the index of the first row to be process (first row is zero), default is 0.

setFirst

public void setFirst(int first)

Specified by:

setFirst in interface FacesDataIterator

Parameters:

first - Set the index of the first row to be processed, if set to value less than zero it will be set to zero.

getRows

public int getRows()

Specified by:

getRows in interface FacesDataIterator

Returns:

Returns the number of rows to be process starting from the index.

setRows

public void setRows(int rows)

Specified by:

setRows in interface FacesDataIterator

Parameters:

rows - Sets the number of rows to be process starting from the index.

getValue

public java.lang.Object getValue()

setValue

public void setValue(java.lang.Object o)

getIndex

public int getIndex()

Deprecated. Use getRowIndex() instead, to match the UIData class and the FacesDataIterator interface.

Returns:

Returns the rowIndex.

getRowIndex

public int getRowIndex()

Specified by:

getRowIndex in interface FacesDataIterator

Specified by:

getRowIndex in interface FacesRowIndex

setIndex

public void setIndex(int index)

Deprecated. use setRowIndex(int) instead, to match the UIData class

Parameters:

rowIndex - The rowIndex to set.

setRowIndex

public void setRowIndex(int index)

Parameters:

rowIndex - The rowIndex to set.

publishControlData

protected java.util.List<DataPublisher.ShadowedObject> publishControlData(javax.faces.context.FacesContext context)

Parameters:

shadowedObjects - null or list of shadowedObjects

Returns:

shadowedObjects list of shadowedObjects, or Collections.emptyList()

revokeControlData

protected void revokeControlData(java.util.List<DataPublisher.ShadowedObject> shadowedObjects,
                                 javax.faces.context.FacesContext context)

pushVars

protected void pushVars(javax.faces.context.FacesContext context,
                        javax.faces.model.DataModel model)

isRowAvailable

public boolean isRowAvailable()

getIndexVar

public java.lang.String getIndexVar()

Return the value of the indexVar property. Contents:

The variable name under which the row index is made available to children

isRepeatControls

public boolean isRepeatControls()

Return the value of the repeatControls property. Contents:

Boolean flag indicating if mulitple controls are to be created. The repeat has to modes, when repeatControls="false" (default), a single set of child controls are iterated over for each entry in the data model thats to be processed. The second mode is where on inital page creation, multiple sets of controls are created one for each row in the data model.

setIndexVar

public void setIndexVar(java.lang.String indexVar)

Set the value of the indexVar property.

setRepeatControls

public void setRepeatControls(boolean repeatControls)

Set the value of the repeatControls property.

isRemoveRepeat

public boolean isRemoveRepeat()

Return the value of the removeRepeat property. Contents:

A boolean flag indicating the repeat should be removed after repeating it's child controls. Note: This only works if it repeats a single child which is a naming container.

setRemoveRepeat

public void setRemoveRepeat(boolean remove)

Set the value of the removeRepeat property.

setValueBinding

public void setValueBinding(java.lang.String name,
                            javax.faces.el.ValueBinding binding)

Overrides:

setValueBinding in class javax.faces.component.UIComponentBase

getVar

public java.lang.String getVar()

Returns:

Returns the var.

setVar

public void setVar(java.lang.String var)

Parameters:

var - The var to set.

getRendersChildren

public boolean getRendersChildren()

Overrides:

getRendersChildren in class javax.faces.component.UIComponentBase

queueEvent

public void queueEvent(javax.faces.event.FacesEvent event)

Overrides:

queueEvent in class javax.faces.component.UIComponentBase

broadcast

public void broadcast(javax.faces.event.FacesEvent event)
               throws javax.faces.event.AbortProcessingException

Overrides:

broadcast in class javax.faces.component.UIComponentBase

Throws:

javax.faces.event.AbortProcessingException

encodeBegin

public void encodeBegin(javax.faces.context.FacesContext context)
                 throws java.io.IOException

Overrides:

encodeBegin in class javax.faces.component.UIComponentBase

Throws:

java.io.IOException

encodeChildren

public void encodeChildren(javax.faces.context.FacesContext context)
                    throws java.io.IOException

Overrides:

encodeChildren in class javax.faces.component.UIComponentBase

Throws:

java.io.IOException

encodeEnd

public void encodeEnd(javax.faces.context.FacesContext context)
               throws java.io.IOException

Overrides:

encodeEnd in class javax.faces.component.UIComponentBase

Throws:

java.io.IOException

processDecodes

public void processDecodes(javax.faces.context.FacesContext context)

Overrides:

processDecodes in class javax.faces.component.UIComponentBase

processUpdates

public void processUpdates(javax.faces.context.FacesContext context)

Overrides:

processUpdates in class javax.faces.component.UIComponentBase

processValidators

public void processValidators(javax.faces.context.FacesContext context)

Overrides:

processValidators in class javax.faces.component.UIComponentBase

isNestedInUIIterator

protected boolean isNestedInUIIterator()

getRowCount

public int getRowCount()

Return the number of rows in the underlying data model. If the number of available rows is unknown, return -1.

Returns:

Return the number of rows in the underlying data model.

getRowCount

public int getRowCount(int maxCount)

restoreState

public void restoreState(javax.faces.context.FacesContext context,
                         java.lang.Object _state)

Specified by:

restoreState in interface javax.faces.component.StateHolder

Overrides:

restoreState in class javax.faces.component.UIComponentBase

saveState

public java.lang.Object saveState(javax.faces.context.FacesContext context)

Specified by:

saveState in interface javax.faces.component.StateHolder

Overrides:

saveState in class javax.faces.component.UIComponentBase

saveValueHolderState

protected void saveValueHolderState(javax.faces.context.FacesContext context,
                                    javax.faces.component.UIComponent component)

restoreValueHolderState

protected void restoreValueHolderState(javax.faces.context.FacesContext context,
                                       javax.faces.component.UIComponent component)

invokeOnComponent

public boolean invokeOnComponent(javax.faces.context.FacesContext context,
                                 java.lang.String clientId,
                                 javax.faces.component.ContextCallback callback)
                          throws javax.faces.FacesException

Overrides:

invokeOnComponent in class javax.faces.component.UIComponent

Throws:

javax.faces.FacesException

visitTree

public boolean visitTree(javax.faces.component.visit.VisitContext context,
                         javax.faces.component.visit.VisitCallback callback)

Overrides:

visitTree in class javax.faces.component.UIComponent

getClientId

public java.lang.String getClientId(javax.faces.context.FacesContext context)

Overrides:

getClientId in class javax.faces.component.UIComponentBase

getNonChildClientId

public java.lang.String getNonChildClientId(javax.faces.context.FacesContext context)

Specified by:

getNonChildClientId in interface FacesRefreshableComponent

Returns:

getAjaxUrl

public java.lang.String getAjaxUrl(java.lang.String verb)

getAjaxUrl

public java.lang.String getAjaxUrl(javax.faces.context.FacesContext context,
                                   java.lang.String verb)

handles

public boolean handles(javax.faces.context.FacesContext context)

Description copied from interface: FacesAjaxComponent

Check if the pathinfo request is for this target ajax component

Specified by:

handles in interface FacesAjaxComponent

Returns:

true if request handler

processAjaxRequest

public void processAjaxRequest(javax.faces.context.FacesContext context)
                        throws java.io.IOException

Description copied from interface: FacesAjaxComponent

Process the request for this target ajax component

Specified by:

processAjaxRequest in interface FacesAjaxComponent

Throws:

java.io.IOException

processAjaxGetRows

protected void processAjaxGetRows(javax.faces.context.FacesContext context)
                           throws java.io.IOException

Throws:

java.io.IOException