com.extjs.gxt.ui.client.widget.grid
Class BufferView

java.lang.Object
  com.extjs.gxt.ui.client.event.BaseObservable
      com.extjs.gxt.ui.client.widget.grid.GridView
          com.extjs.gxt.ui.client.widget.grid.BufferView

All Implemented Interfaces:

Observable

Direct Known Subclasses:

TreeGridView

public class BufferView
extends GridView

Renders the rows as they scroll into view. This GridView is fast for displaying many rows at once, but it does not support all features the normal {link @GridView} supports, such has expanding rows.

Only works with constant row heights that can be specified using setRowHeight(int).

Nested Class Summary

Nested classes/interfaces inherited from class com.extjs.gxt.ui.client.widget.grid.GridView

GridView.GridViewImages

Constructor Summary

BufferView()

Method Summary

int	getCacheSize() Returns the amount of rows that should be cached.
int	getCleanDelay() Returns the amount of time before cleaning is done.
int	getRowHeight() Returns the height of one row.
int	getScrollDelay() Returns the amount of time before new rows are displayed after scrolling
boolean	isBufferEnabled() Returns true if buffering is enabled.
void	layout()
void	setBufferEnabled(boolean bufferEnabled) True to enabled buffered functionality (defaults to true).
void	setCacheSize(int cacheSize) Sets the amount of rows that should be cached (default to 10).
void	setCleanDelay(int cleanDelay) Sets the amount of time before cleaning is done (defaults to 500).
void	setRowHeight(int rowHeight) Sets the height of one row (defaults to 19).
void	setScrollDelay(int scrollDelay) Sets the amount of time before new rows are displayed after scrolling (defaults to 100).

Methods inherited from class com.extjs.gxt.ui.client.widget.grid.GridView

ensureVisible, findCell, findCellIndex, findRow, findRowIndex, focusCell, focusRow, getBody, getCell, getCellSelectorDepth, getEditorParent, getEmptyText, getHeader, getHeaderCell, getImages, getRow, getRow, getRowSelectorDepth, getScrollState, getViewConfig, getWidget, isAutoFill, isForceFit, isShowDirtyCells, isSortingEnabled, refresh, scrollToTop, setAutoFill, setCellSelectorDepth, setEmptyText, setForceFit, setRowSelectorDepth, setShowDirtyCells, setSortingEnabled, setViewConfig

Methods inherited from class com.extjs.gxt.ui.client.event.BaseObservable

addListener, fireEvent, fireEvent, getFiresEvents, getListeners, hasActiveEvent, hasListeners, hasListeners, removeAllListeners, removeListener, setFiresEvents

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferView

public BufferView()

Method Detail

getCacheSize

public int getCacheSize()

Returns the amount of rows that should be cached.

Returns:

the cache size

getCleanDelay

public int getCleanDelay()

Returns the amount of time before cleaning is done.

Returns:

the clean delay

getRowHeight

public int getRowHeight()

Returns the height of one row.

Returns:

the height of one row

getScrollDelay

public int getScrollDelay()

Returns the amount of time before new rows are displayed after scrolling

Returns:

the scroll delay

isBufferEnabled

public boolean isBufferEnabled()

Returns true if buffering is enabled.

Returns:

true for buffering

layout

public void layout()

Overrides:

layout in class GridView

setBufferEnabled

public void setBufferEnabled(boolean bufferEnabled)

True to enabled buffered functionality (defaults to true).

Parameters:

bufferEnabled - true to buffer, otherwise false

setCacheSize

public void setCacheSize(int cacheSize)

Sets the amount of rows that should be cached (default to 10).

Parameters:

cacheSize - the new cache size

setCleanDelay

public void setCleanDelay(int cleanDelay)

Sets the amount of time before cleaning is done (defaults to 500).

Parameters:

cleanDelay - the new clean delay

setRowHeight

public void setRowHeight(int rowHeight)

Sets the height of one row (defaults to 19).

Parameters:

rowHeight - the new row height.

setScrollDelay

public void setScrollDelay(int scrollDelay)

Sets the amount of time before new rows are displayed after scrolling (defaults to 100).

Parameters:

scrollDelay - the new scroll delay.