DeviceKeyService (ONOS Java API (2.2.7))

All Superinterfaces:

ListenerService<DeviceKeyEvent,DeviceKeyListener>

All Known Subinterfaces:

DeviceKeyAdminService
```
@Beta
public interface DeviceKeyService
extends ListenerService<DeviceKeyEvent,DeviceKeyListener>
```
Service for querying device keys.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`DeviceKey`	`getDeviceKey(DeviceKeyId deviceKeyId)`	Returns the device key using a device key identifier.
`java.util.Collection<DeviceKey>`	`getDeviceKeys()`	Returns all device keys.

Methods inherited from interface org.onosproject.event.ListenerService
addListener, removeListener

- Method Detail
  - getDeviceKeys
```
java.util.Collection<DeviceKey> getDeviceKeys()
```
    Returns all device keys.
    
    Returns:
    
    Collection of device keys
  - getDeviceKey
```
DeviceKey getDeviceKey(DeviceKeyId deviceKeyId)
```
    Returns the device key using a device key identifier.
    
    Parameters:
    
    deviceKeyId - device key identifier
    
    Returns:
    
    device key