Package com.google.gwt.user.cellview.client

Class CellTreeNodeView.NodeCellList<C>

java.lang.Object

com.google.gwt.user.cellview.client.CellTreeNodeView.NodeCellList<C>

Type Parameters:

C - the child item type

All Implemented Interfaces:

HasHandlers, HasCellPreviewHandlers<C>, HasData<C>, HasRows

Enclosing class:

CellTreeNodeView<T>

static class CellTreeNodeView.NodeCellList<C>
extends Object
implements HasData<C>

The HasData used to show children. This class is intentionally static because we might move it to a new CellTreeNodeView, and we don't want non-static references to the old CellTreeNodeView.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final HasDataPresenter<C>	presenter

Constructor Summary

Constructors

Constructor	Description
NodeCellList(TreeViewModel.NodeInfo<C> nodeInfo, CellTreeNodeView<?> nodeView, int pageSize)

Method Summary

Modifier and Type	Method	Description
HandlerRegistration	addCellPreviewHandler(CellPreviewEvent.Handler<C> handler)	Adds a CellPreviewEvent handler.
HandlerRegistration	addRangeChangeHandler(RangeChangeEvent.Handler handler)	Add a RangeChangeEvent.Handler.
HandlerRegistration	addRowCountChangeHandler(RowCountChangeEvent.Handler handler)	Add a RowCountChangeEvent.Handler.
void	cleanup()	Cleanup this node view.
void	fireEvent(GwtEvent<?> event)	Fires the given event to the handlers listening to the event's type.
int	getDefaultPageSize()
int	getRowCount()	Get the total count of all rows.
SelectionModel<? super C>	getSelectionModel()	Get the SelectionModel used by this HasData.
C	getVisibleItem(int indexOnPage)	Get the row value at the specified visible index.
int	getVisibleItemCount()	Get the number of visible items being displayed.
List<C>	getVisibleItems()	Get an Iterable composed of all of the visible items.
Range	getVisibleRange()	Get the range of visible rows.
boolean	isRowCountExact()	Check if the total row count is exact, or an estimate.
final void	setRowCount(int count)	Set the exact total count of all rows.
void	setRowCount(int size, boolean isExact)	Set the total count of all rows, specifying whether the count is exact or an estimate.
void	setRowData(int start, List<? extends C> values)	Set a values associated with the rows in the visible range.
void	setSelectionModel(SelectionModel<? super C> selectionModel)	Set the SelectionModel used by this HasData.
final void	setVisibleRange(int start, int length)	Set the visible range or rows.
void	setVisibleRange(Range range)	Set the visible range or rows.
void	setVisibleRangeAndClearData(Range range, boolean forceRangeChangeEvent)	Set the visible range and clear the current visible data.

Methods inherited from class java.lang.Object

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

Field Details

presenter

final HasDataPresenter<C> presenter

Constructor Details

NodeCellList

public NodeCellList(TreeViewModel.NodeInfo<C> nodeInfo,
 CellTreeNodeView<?> nodeView,
 int pageSize)

Method Details

addCellPreviewHandler

public HandlerRegistration addCellPreviewHandler(CellPreviewEvent.Handler<C> handler)

Description copied from interface: HasCellPreviewHandlers

Adds a CellPreviewEvent handler.

Specified by:

addCellPreviewHandler in interface HasCellPreviewHandlers<C>

Parameters:

handler - the handler

Returns:

the registration for the event

addRangeChangeHandler

public HandlerRegistration addRangeChangeHandler(RangeChangeEvent.Handler handler)

Description copied from interface: HasRows

Add a RangeChangeEvent.Handler.

Specified by:

addRangeChangeHandler in interface HasRows

Parameters:

handler - the handler

Returns:

a HandlerRegistration to remove the handler

addRowCountChangeHandler

public HandlerRegistration addRowCountChangeHandler(RowCountChangeEvent.Handler handler)

Description copied from interface: HasRows

Add a RowCountChangeEvent.Handler.

Specified by:

addRowCountChangeHandler in interface HasRows

Parameters:

handler - the handler

Returns:

a HandlerRegistration to remove the handler

cleanup

public void cleanup()

Cleanup this node view.

fireEvent

public void fireEvent(GwtEvent<?> event)

Description copied from interface: HasHandlers

Fires the given event to the handlers listening to the event's type.

Any exceptions thrown by handlers will be bundled into a UmbrellaException and then re-thrown after all handlers have completed. An exception thrown by a handler will not prevent other handlers from executing.

Specified by:

fireEvent in interface HasHandlers

Parameters:

event - the event

getDefaultPageSize

public int getDefaultPageSize()

getRowCount

public int getRowCount()

Description copied from interface: HasRows

Get the total count of all rows.

Specified by:

getRowCount in interface HasRows

Returns:

the total row count

See Also:

• HasRows.setRowCount(int)

getSelectionModel

public SelectionModel<? super C> getSelectionModel()

Description copied from interface: HasData

Get the SelectionModel used by this HasData.

Specified by:

getSelectionModel in interface HasData<C>

Returns:

the SelectionModel

See Also:

• HasData.setSelectionModel(SelectionModel)

getVisibleItem

public C getVisibleItem(int indexOnPage)

Description copied from interface: HasData

Get the row value at the specified visible index. Index 0 corresponds to the first item on the page.

Specified by:

getVisibleItem in interface HasData<C>

Parameters:

indexOnPage - the index on the page

Returns:

the row value

getVisibleItemCount

public int getVisibleItemCount()

Description copied from interface: HasData

Get the number of visible items being displayed. Note that this value might be less than the page size if there is not enough data to fill the page.

Specified by:

getVisibleItemCount in interface HasData<C>

Returns:

the number of visible items on the page

getVisibleItems

public List<C> getVisibleItems()

Description copied from interface: HasData

Get an Iterable composed of all of the visible items.

Specified by:

getVisibleItems in interface HasData<C>

Returns:

an Iterable instance

getVisibleRange

public Range getVisibleRange()

Description copied from interface: HasRows

Get the range of visible rows.

Specified by:

getVisibleRange in interface HasRows

Returns:

the visible range

See Also:

• HasRows.setVisibleRange(Range)
• HasRows.setVisibleRange(int, int)

isRowCountExact

public boolean isRowCountExact()

Description copied from interface: HasRows

Check if the total row count is exact, or an estimate.

Specified by:

isRowCountExact in interface HasRows

Returns:

true if exact, false if an estimate

setRowCount

public final void setRowCount(int count)

Description copied from interface: HasRows

Set the exact total count of all rows. This method defers to HasRows.setRowCount(int, boolean).

Specified by:

setRowCount in interface HasRows

Parameters:

count - the exact total count

See Also:

• HasRows.getRowCount()

setRowCount

public void setRowCount(int size,
 boolean isExact)

Description copied from interface: HasRows

Set the total count of all rows, specifying whether the count is exact or an estimate.

Specified by:

setRowCount in interface HasRows

Parameters:

size - the total count

isExact - true if the count is exact, false if an estimate

See Also:

• HasRows.getRowCount()

setRowData

public void setRowData(int start,
 List<? extends C> values)

Description copied from interface: HasData

Set a values associated with the rows in the visible range.

This method does not replace all rows in the display; it replaces the row values starting at the specified start index through the length of the specified values. You must call HasRows.setRowCount(int) to set the total number of rows in the display. You should also use HasRows.setRowCount(int) to remove rows when the total number of rows decreases.

Specified by:

setRowData in interface HasData<C>

Parameters:

start - the start index of the data

values - the values within the range

setSelectionModel

public void setSelectionModel(SelectionModel<? super C> selectionModel)

Description copied from interface: HasData

Set the SelectionModel used by this HasData.

Specified by:

setSelectionModel in interface HasData<C>

Parameters:

selectionModel - the SelectionModel

See Also:

• HasData.getSelectionModel()

setVisibleRange

public final void setVisibleRange(int start,
 int length)

Description copied from interface: HasRows

Set the visible range or rows. This method defers to HasRows.setVisibleRange(Range).

Specified by:

setVisibleRange in interface HasRows

Parameters:

start - the start index

length - the length

See Also:

• HasRows.getVisibleRange()

setVisibleRange

public void setVisibleRange(Range range)

Description copied from interface: HasRows

Set the visible range or rows.

Specified by:

setVisibleRange in interface HasRows

Parameters:

range - the visible range

See Also:

• HasRows.getVisibleRange()

setVisibleRangeAndClearData

public void setVisibleRangeAndClearData(Range range,
 boolean forceRangeChangeEvent)

Description copied from interface: HasData

Set the visible range and clear the current visible data.

If the second argument forceRangeChangeEvent is true, a RangeChangeEvent will be fired even if the range does not change. If false, a RangeChangeEvent will only be fired if the range changes.

Specified by:

setVisibleRangeAndClearData in interface HasData<C>

Parameters:

range - the new Range

forceRangeChangeEvent - true to fire a RangeChangeEvent even if the Range doesn't change