Bug 210047 The grand total key should not appear in the new sort key editor
Build ID: I20071101-2000 Steps To Reproduce: 1.New a cube and add a x-tab to the layout 2.add data to the x-tab and show the grand total 3.open the property editor's sorting tab, click "Add" to add a new sort key. Expect: the grand total key should not appear in the key list
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/CubeQueryUtil.java
{
	private DataRequestSessionImpl session;
	
	public CubeQueryUtil( DataRequestSessionImpl session )
	{
		this.session = session;
	}
	
	/*
	 * @see org.eclipse.birt.report.data.adapter.api.ICubeQueryUtil#getReferableBindings(java.lang.String, org.eclipse.birt.data.engine.olap.api.query.ICubeQueryDefinition, boolean)
	 */
	public List getReferableBindings( String targetLevel,
			ICubeQueryDefinition cubeDefn, boolean isSort )
			throws AdapterException
	{
		try
		{
			List bindings = cubeDefn.getBindings( );
			if ( bindings == null )
				return new ArrayList( );
			DimLevel target = OlapExpressionUtil.getTargetDimLevel( targetLevel );