OdDgElementId Class

Syntax

C++

class OdDgElementId;

Description

This class implements memory-resident ElementId objects for OdDgDatabase objects.

Remarks

Database objects reference other database objects using ElementId objects, and a database object pointer can always be obtained from a valid ObjectId objects. The effect of this mechanism is that database objects do not have to reside in memory unless they are explicitly being examined or modified by the user.

Class Hierarchy

File: DgElementId.h

Module: API Reference

See Also

OdDbHandle
OdDgElement

Corresponding C++ library: TG_Db

Methods

OdDgElementId()

This is the overview for the OdDgElementId constructor overload.

Data Members

kNull

The null ObjectId object.

Friends

class OdDbStub

Methods

convertToRedirectedId	If this ObjectId object has been redirected from another database (possibly an Xref), this function returns the actual ObjectId object for that database.
database	Returns the database with which this ObjectId object is associated.
getHandle	Returns the database handle of the object referenced by this ObjectId object.
getNonForwardedHandle	Returns the database handle of the object referenced by this ObjectId object.
isErased	Returns true if and only if the object associated with this ObjectId object is erased.
isNull	Returns true and only if this ObjectId object is null.
isValid	Returns true and only if this ObjectId object references a valid object.
openObject(OdDg::OpenMode, bool)	This is the overview for the openObject method overload.
originalDatabase	Returns the original database with which this ObjectId object is associated.
safeOpenObject	Opens the database object associated with this ObjectId object, in the specified mode, or throws and exception if unsucessful.
setNull	Sets this Object ID to null.

Operators

!
!=
->	!DOM
<
<=
=(OdDbStub*)	This is the overview for the = operator overload.
==
>
>=
OdDbStub*	!DOM

Links

OdDgElementId Constructor
OdDgElementId Data Members
OdDgElementId Methods
OdDgElementId Operators
OdDgElementId Friends

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