Bug 210716 Support switch Text/Chart view in crosstab cell
Need crosstab UI provide support to switch between Text and Chart view in measure/aggregation cell.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/internal/CrosstabModelUtil.java
}
		if ( name.length( ) <= 0 )
		{
			name = "measure"; 
		}
		return name;
	}
	/**
	 * Returns the default aggregation function for specific measure view
	 */
	public static String getDefaultMeasureAggregationFunction(
			MeasureViewHandle mv )
	{
		if ( mv != null && mv.getCubeMeasure( ) != null )
		{
			String func = mv.getCubeMeasure( ).getFunction( );
			if ( func != null )
			{
				return CrosstabModelUtil.getRollUpAggregationFunction( func );
			}
		}
		return DEFAULT_MEASURE_FUNCTION;
	}
	/**
	 * Gets the aggregation function for this cell.
	 * 
	 * @param crosstab
	 * @param cell
	 * @return
	 */