Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/PropertyCommand.java
else if ( IStyledElementModel.STYLE_PROP.equals( propName ) )
		{
			
			StyleCommand cmd = new StyleCommand( module, element );
			cmd.setStyleRefValue( (ElementRefValue) value );
		}
		else if ( IModuleModel.UNITS_PROP.equals( propName ) )
		{
			doSetProperty( prop, value );
		}
		else if ( IExtendedItemModel.EXTENSION_NAME_PROP.equals( propName ) )
		{
			doSetProperty( prop, value );
		}
		else if ( IModuleModel.THEME_PROP.equals( propName ) )
		{
			assert module == element;
			ThemeCommand cmd = new ThemeCommand( (Module) element );
			cmd.setThemeRefValue( (ElementRefValue) value );
		}
		else
		{
			
			assert false;
		}
	}
	/**
	 * Checks whether the name is valid in the context.
	 * 
	 * @param name