Bug 132805 Set descending to outer group will affect inner group.
Description: Set descending to outer group will affect inner group. Steps to reproduce: 1. New a sample datasource and dataset from orders. 2. Drag the dataset to Layout. 3. Add a group on ordernumber, interval 10, descending. 4. Add another group on orderdate, interval day 2, ascending. 5. Preview. Expected result: Data are grouped correctly. Actual result: Inner group didn't work unless you set outer group's sort to asc.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/transform/group/GroupCalculationUtil.java
*/
	boolean[] getSortDirection( )
	{
		return this.sortDirections;
	}
	/**
	 * Set the filter value of GroupBoundaryInfo.
	 * 
	 * @param accept
	 */
	void setAccepted( boolean accept )
	{
		this.accept = accept;
	}
	/**
	 * Return whether the GroupBoundaryInfo intance is accpeted or not.
	 * 
	 * @return
	 */
	boolean isAccpted( )
	{
		return this.accept;
	}
}
/**
 * The Comparator instance which is used to compare two GroupBoundaryInfo
 * instance.
 * 
 */
final class GroupBoundaryInfoComparator implements Comparator