org.tango.server.annotation

Annotation Type StateMachine

@Target(value={METHOD,FIELD})
 @Retention(value=RUNTIME)
public @interface StateMachine

Manage the state machine of the device. Apply for command execution and attribute writing. See Init, Attribute and Command. WARNING: The StateMachine annotation for an attribute must be located at the as the Attribute annotation

 @Init
 @StateMachine(endState = DeviceState.ON)
 private void init(){..}
 
 @Attribute
 @StateMachine(deniedStates = { DeviceState.FAULT, DeviceState.UNKNOWN }, endState = DeviceState.DISABLE)
 private String attr;
 
 @Command
 @StateMachine(deniedStates = { DeviceState.FAULT, DeviceState.UNKNOWN }, endState = DeviceState.DISABLE)
 public double myCommand(int value){..}
 

Author:

ABEILLE

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
org.tango.DeviceState[]	deniedStates The states that are not allowed.
org.tango.DeviceState	endState The device state after the method execution

Element Detail

endState

public abstract org.tango.DeviceState endState

The device state after the method execution

Returns:

the device state

Default:

org.tango.DeviceState.UNKNOWN

deniedStates

public abstract org.tango.DeviceState[] deniedStates

The states that are not allowed.

Returns:

the denied states

Default:

{}