org.eclipse.nebula.widgets.nattable.extension.glazedlists
Class GlazedListsDataProvider<T>

java.lang.Object
  org.eclipse.nebula.widgets.nattable.data.ListDataProvider<T>
      org.eclipse.nebula.widgets.nattable.extension.glazedlists.GlazedListsDataProvider<T>

All Implemented Interfaces:

IDataProvider, IRowDataProvider<T>

public class GlazedListsDataProvider<T>
extends ListDataProvider<T>

This class implements "last row" caching for much faster column value access on the table. As normally the default implementation would fetch the row object for each cell in a column, we know what the last row we fetched was, and if it's a re-request of the same row as last time, we simply return the last cached row object (assuming the list didn't change in some important way, as then we clear out our cache).

Author:

Emil Crumhorn

Field Summary

Fields inherited from class org.eclipse.nebula.widgets.nattable.data.ListDataProvider

columnAccessor, list

Constructor Summary

GlazedListsDataProvider(ca.odell.glazedlists.EventList<T> list, IColumnAccessor<T> columnAccessor)

Method Summary

Object	getDataValue(int colIndex, int rowIndex) Gets the value at the given column and row index.
T	getRowObject(int rowIndex)
void	inputChanged()

Methods inherited from class org.eclipse.nebula.widgets.nattable.data.ListDataProvider

getColumnCount, getList, getRowCount, indexOfRowObject, setDataValue

Methods inherited from class java.lang.Object

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

Constructor Detail

GlazedListsDataProvider

public GlazedListsDataProvider(ca.odell.glazedlists.EventList<T> list,
                               IColumnAccessor<T> columnAccessor)

Method Detail

inputChanged

public void inputChanged()

getRowObject

public T getRowObject(int rowIndex)

Specified by:

getRowObject in interface IRowDataProvider<T>

Overrides:

getRowObject in class ListDataProvider<T>

getDataValue

public Object getDataValue(int colIndex,
                           int rowIndex)

Description copied from interface: IDataProvider

Gets the value at the given column and row index.

Specified by:

getDataValue in interface IDataProvider

Overrides:

getDataValue in class ListDataProvider<T>

Returns:

the data value associated with the specified cell