Bug 207825 Crosstab gives wrong default for Totals on Count
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/AggregationCellHandle.java
public LevelHandle getAggregationOnRow( )
	{
		return (LevelHandle) handle.getElementProperty( AGGREGATION_ON_ROW_PROP );
	}
	/**
	 * Gets the referred column cube level of this aggregation applied on.
	 * 
	 * @return the referred column cube level
	 */
	public LevelHandle getAggregationOnColumn( )
	{
		return (LevelHandle) handle.getElementProperty( AGGREGATION_ON_COLUMN_PROP );
	}
	/**
	 * Gets row/column cube level. The axis type can be either
	 * <code>ICrosstabConstants.ROW_AXIS_TYPE</code> or
	 * <code>ICrosstabConstants.COLUMN_AXIS_TYPE</code>.
	 * 
	 * @param axisType
	 *            row/column axis type
	 * @return row/column level if found, otherwise null
	 */
	protected LevelHandle getLevel( int axisType )
	{
		switch ( axisType )
		{
			case ROW_AXIS_TYPE :
				return getAggregationOnRow( );
			case COLUMN_AXIS_TYPE :
				return getAggregationOnColumn( );