AcDbObjectId-->AcDbHandle
1.acdbOpenObject() >> AcDbObject
2.AcDbObject::getAcDbHandle() >> AcDbHandle
AcDbHandle-->AcDbObjectId
1.AcDbDatabase::getAcDbObjectId()
1.acdbOpenObject() >> AcDbObject
2.AcDbObject::getAcDbHandle() >> AcDbHandle
1.AcDbDatabase::getAcDbObjectId()