Bug 211015 The XTab can be preview after remove its measure's binding[1102]
Description: I created a crosstab and for my mistaken step I remove the measure's binding. But preview is ok. At this time I don't know my measure's binding is gone. After that I want specify a filter on measure. But I can not found the measure in the selecting list. Build number: 2.3.0.v20071127-1036 Steps to reproduce: 1, New a Crosstab with levels and measures 2, Delete all the bindings of measure 3, Preview the crosstab Expected result: The preview should be failed. Actual result: The preview is ok, and all the measures are in the results
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/impl/query/CubeCursorImpl.java
return null;
	}
	public Object getObject( String arg0 ) throws OLAPException
	{
		Object result = null;
		
		if ( this.bindingMap.get( arg0 ) == null )
		{
			result = this.cursor.getObject( arg0 );
			
		}
		else
		{
			try
			{
				Context cx = Context.enter( );
				IBaseExpression expr = (IBaseExpression) this.bindingMap.get( arg0 );
				result = ScriptEvalUtil.evalExpr( expr, cx, this.scope, null, 0 );
			}
			catch ( Exception e )
			{
				throw new OLAPException( e.getLocalizedMessage( ) );
			}
			finally
			{
				Context.exit( );
			}
		}
		if ( result instanceof DataException )
		{