FSMImpl

java.lang.Object
- org.glassfish.pfl.basic.fsm.FSMImpl

All Implemented Interfaces:

FSM
```
public class FSMImpl
extends java.lang.Object
implements FSM
```
This is the main class that represents an instance of a state machine using a state engine. It may be used as a base class, in which case the guards and actions have access to the derived class. Note that this is optional; an FSM implementation may directly implement the FSM interface if desired.

Field Summary

Fields
Modifier and Type Field Description

private FSM parent

private State state

private StateEngine stateEngine

Constructor Summary

Constructors
Constructor Description

FSMImpl(StateEngine se, State initialState)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FSM`	`getParent()`	Get the parent state machine.
`State`	`getState()`	Return the current state.
`StateEngine`	`getStateEngine()`	Return the state engine used to create this FSM.
`void`	`setParent(FSM fsm)`	Set the parent state machine.
`void`	`setState(State nextState)`	Set the current state of this FSM.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - parent
```
private FSM parent
```
  - state
```
private State state
```
  - stateEngine
```
private StateEngine stateEngine
```
- Constructor Detail
  - FSMImpl
```
public FSMImpl(StateEngine se,
               State initialState)
```
- Method Detail
  - getParent
```
public FSM getParent()
```
    Description copied from interface: FSM
    
    Get the parent state machine.
    
    Specified by:
    
    getParent in interface FSM
  - setParent
```
public void setParent(FSM fsm)
```
    Description copied from interface: FSM
    
    Set the parent state machine.
    
    Specified by:
    
    setParent in interface FSM
  - getStateEngine
```
public StateEngine getStateEngine()
```
    Description copied from interface: FSM
    
    Return the state engine used to create this FSM.
    
    Specified by:
    
    getStateEngine in interface FSM
  - getState
```
public State getState()
```
    Return the current state.
    
    Specified by:
    
    getState in interface FSM
  - setState
```
public void setState(State nextState)
```
    Description copied from interface: FSM
    
    Set the current state of this FSM. May not be called inside a transition action, or from a State method. Only here for use by the StateEngine.
    
    Specified by:
    
    setState in interface FSM