UpfProgrammable (ONOS Java API (2.6.0))

All Superinterfaces:

Behaviour, HandlerBehaviour, UpfDevice
```
@Beta
public interface UpfProgrammable
extends HandlerBehaviour, UpfDevice
```
Provides means to update the device forwarding state to implement a 3GPP User Plane Function. An implementation of this API should not write state directly to the device, but instead, always rely on core ONOS subsystems (e.g., FlowRuleService, GroupService, etc).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`init()`	Apps are expected to call this method as the first one when they are ready to install PDRs and FARs.

Methods inherited from interface org.onosproject.net.driver.Behaviour
data, setData

Methods inherited from interface org.onosproject.net.driver.HandlerBehaviour
handler, setHandler

Methods inherited from interface org.onosproject.net.behaviour.upf.UpfDevice
addFar, addInterface, addPdr, cleanUp, clearFlows, clearInterfaces, disablePscEncap, enablePscEncap, farTableSize, getFars, getInterfaces, getPdrs, pdrCounterSize, pdrTableSize, readAllCounters, readCounter, removeFar, removeInterface, removePdr, sendPacketOut

- Method Detail
  - init
```
boolean init()
```
    Apps are expected to call this method as the first one when they are ready to install PDRs and FARs.
    
    Returns:
    
    True if initialized, false otherwise.