assert queryDefn != null;
assert groupDefns != null;
	private int getGroupIndexFromPreparedQuery( String groupText )	{		assert groupText != null;		assert queryDefn != null; 				List groups = queryDefn.getGroups();		for ( int i = 0; i < groups.size(); i++)		{			IGroupDefinition group = (IGroupDefinition) groups.get(i);			if ( groupText.equals( group.getName()) ||				 groupText.equals( group.getKeyColumn() ) ||				 groupText.equals( group.getKeyExpression()) )			 {				return i + 1;			// Note that group index is 1-based			 }		}		return -1;	}