Bug 190984 xtab filter/sort did not work properly when using a joined data set
steps to reproduce: - use the attached report - try to add a filter/sort on xtab, e.g. using country column - notice that the value list is unavailable - try to enter the filter/sort condition manually, e.g. "USA" - preview in layout expected behavior: - when use joined data set, the value list should be available - report should be previewed properly actual behavior: - the value list was unavailable - NPE was thrown out when preview the report with the filter/sort condition being completed manually
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;
	}
	
	/**
	 * @throws DataException 
	 * 
	 */
	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 );
			List result = new ArrayList( );
			for ( int i = 0; i < bindings.size( ); i++ )
			{
				IBinding binding = (IBinding) bindings.get( i );
				Set refDimLevel = OlapExpressionCompiler.getReferencedDimLevel( binding.getExpression( ),
						bindings,
						isSort );