This standard Object Node is the browse entry point for EventType Nodes. Figure 7 illustrates the structure beneath this Node showing some of the standard EventTypes defined in Clause 6. Only Organizes References are used to relate Objects and ObjectTypes to the “EventTypes” standard Object. The “EventTypesObject shall not reference any other NodeClasses.

image010.png

Figure 7 – EventTypes Organization

The intention of the “EventTypesObject is that all EventTypes of the Server are either directly or indirectly accessible browsing HierarchicalReferences starting from this Node. It is required that the Server expose all its EventTypes, so a client can usefully subscribe to Events.

The “EventTypesObject is formally defined in Table 87.

Table 87 – EventTypes Definition

Attribute

Value

BrowseName

EventTypes

References

NodeClass

BrowseName

Comment

HasTypeDefinition

ObjectType

FolderType

Defined in 6.6

Organizes

ObjectType

BaseEventType

Defined in 6.4.2