String namespace = null; if ( module instanceof Library ) namespace  = ( (Library) module ).getNamespace( );
	private StructRefValue validateStringValue( Module module,			StructureDefn targetDefn, String name )			throws PropertyValueException	{		if ( StringUtil.isBlank( name ) )			return null;		Structure target = getStructure( module, targetDefn, name );		// Element is unresolved.		if ( target == null )			return new StructRefValue( name );		// Check type.		if ( targetDefn != target.getDefn( ) )			throw new PropertyValueException(					target.getReferencableProperty( ),					PropertyValueException.DESIGN_EXCEPTION_WRONG_ITEM_TYPE,					PropertyType.STRUCT_REF_TYPE );		// Resolved reference.		return new StructRefValue( target );	}