The state of a telecom object is described by an IltObjectState instance stored in the telecom
object. This instance is called the object
state of the telecom object. It contains state values
corresponding to the primary state, the secondary states, and the
alarm or trap state of the telecom object.
When the object state is modified to reflect
a change in the telecom equipment state, the graphic representation
of the telecom object is automatically recomputed and redisplayed.
Object state classes
There are seven subclasses of IltObjectState in JViews TGO. Subclasses are
based on the OSI, Bellcore, SNMP and SONET state systems as
illustrated in the figure that follows.
Object state classes
This figure shows that each type of object state can hold states
and alarms. Alarms systematically complement states with the
class IltAlarmObjectState, dedicated to the
objects to which only alarms, and no states, are assigned. This
figure also shows that each type of object state can hold states
and traps. Traps systematically complement states with the class
IltTrapObjectState, dedicated to the
objects to which only traps, and no states, are assigned.
Depending on the state systems (OSI,
Bellcore, SNMP, SONET, Alarm, Trap, Misc) that compose the object
state, state modeling is performed differently. For example,
there are three state attributes in the SONET state system,
whereas there are only two in the other state systems. The
terminology employed, as well as the structure of the state
models themselves, is developed in the next section.
Dictionaries and object states
To choose the set of state dictionaries used to describe the
state and alarm condition of a telecom object, select a subclass
of IltObjectState to store the object state.
The seven subclasses of IltObjectState are listed below with the
state dictionaries that they gather.
- IltOSIObjectState OSI, SAN, Alarm, Performance, and Misc dictionaries.
- IltBellcoreObjectState Bellcore, SAN, Alarm, Performance, and Misc dictionaries.
- IltSNMPObjectState SNMP, SAN, Trap, Performance, and Misc dictionaries.
- IltSONETObjectState and IltBiSONETObjectState SONET, SAN, Alarm, and Performance dictionaries.
- IltAlarmObjectState Alarm dictionary only.
- IltTrapObjectState Trap dictionary only.
The object state system is supplied as an
argument to the constructor of the telecom business object, as in
the following code example.
How to supply the state system to the business object
IltNetworkElement berlin =
new IltNetworkElement
("Berlin",
IltNetworkElement.Type.NE,
IltNetworkElement.Function.TransportCrossConnect,
IltNetworkElement.Family.OC12,
new IltBellcoreObjectState());