IfcStateEnum

Semantic definitions at the type

Type definition

The IfcStateEnum enumeration identifies the state or accessibility of the object (for example, read/write, locked).

Valid enumerations are:

HISTORY New enumeration in IFC2.0.

IFC2x3 CHANGE This concept was initially introduced in IFC2.0 as IfcModifiedFlag of type BINARY(3) FIXED and has been modified in R2x3 to an enumeration. It was initially introduced as a first step towards providing facilities for partial model exchange and is intended for use primarily by a model server so that an application can identify the state of the object.

Enumeration definition

Constant	Description
READWRITE	Object is in a Read-Write state. It may be modified by an application.
READONLY	Object is in a Read-Only state. It may be viewed but not modified by an application.
LOCKED	Object is in a Locked state. It may not be accessed by an application.
READWRITELOCKED	Object is in a Read-Write-Locked state. It may not be accessed by an application.
READONLYLOCKED	Object is in a Read-Only-Locked state. It may not be accessed by an application.

Formal representations

XML Specification

 <xs:simpleType name="IfcStateEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="readwrite"/>

   <xs:enumeration value="readonly"/>

   <xs:enumeration value="locked"/>

   <xs:enumeration value="readwritelocked"/>

   <xs:enumeration value="readonlylocked"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcStateEnum = ENUMERATION OF (

 READWRITE, 
 READONLY, 
 LOCKED, 
 READWRITELOCKED, 
 READONLYLOCKED);
END_TYPE;


 EXPRESS-G diagram

	State Enum
	Enumération des types d'accessibilité à l'objet