statemap

Class State7

java.lang.Object

statemap.State7

All Implemented Interfaces:

Serializable

public final class State7
extends Object
implements Serializable

A single state class is used for generated Java code which implements the FSM as a method handle table. The class contains the state name, unique state identifier, the entry and exit action method handles, and the transition method handle table.

Author:

Charles Rapp

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Integer	TRANSITION_DEFINED_DEFAULT Two (2) means the transition is defined in the default state.
static Integer	TRANSITION_DEFINED_LOCALLY One (1) means the transition is defined in the current state.
static Integer	TRANSITION_UNDEFINED Zero (0) means the transition is undefined.

Constructor Summary

Constructors

Constructor and Description
State7(String name, int id, MethodHandle entry, MethodHandle exit, TransitionHandle[] transitions, String[] transNames) Creates a state instance with the given name and unique integer identifier.

Method Summary

Modifier and Type	Method and Description
MethodHandle	enterState() Returns the state entry action.
MethodHandle	exitState() Returns the state exit action.
int	getId() Returns the unique integer identifier.
String	getName() Returns the state name.
String[]	getTransitions() Returns the state transition names.
String	toString() Returns the state name.
TransitionHandle	transition(int transitionId) Returns the transition method handle for the given unique transition identifier.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

TRANSITION_UNDEFINED

public static final Integer TRANSITION_UNDEFINED

Zero (0) means the transition is undefined.

TRANSITION_DEFINED_LOCALLY

public static final Integer TRANSITION_DEFINED_LOCALLY

One (1) means the transition is defined in the current state.

TRANSITION_DEFINED_DEFAULT

public static final Integer TRANSITION_DEFINED_DEFAULT

Two (2) means the transition is defined in the default state.

Constructor Detail

State7

public State7(String name,
              int id,
              MethodHandle entry,
              MethodHandle exit,
              TransitionHandle[] transitions,
              String[] transNames)

Creates a state instance with the given name and unique integer identifier.

Parameters:

name - The state name.

id - The state unique identifier.

entry - state entry action method handle. Will be null if the state has no entry action.

exit - state exit action method handle. Will be null if the state has no exit action.

transitions - transition action method handles.

transNames - the transition names.

Method Detail

toString

public String toString()

Returns the state name.

Overrides:

toString in class Object

Returns:

the state name.

getName

public String getName()

Returns the state name.

Returns:

the state name.

getId

public int getId()

Returns the unique integer identifier.

Returns:

the unique integer identifier.

getTransitions

public String[] getTransitions()

Returns the state transition names.

Returns:

state transition names.

transition

public TransitionHandle transition(int transitionId)

Returns the transition method handle for the given unique transition identifier.

Parameters:

transitionId - the unique transition identifier.

Returns:

the transition method handle.

enterState

public MethodHandle enterState()

Returns the state entry action. May return null if the state has no entry action.

Returns:

state entry action method handle.

exitState

public MethodHandle exitState()

Returns the state exit action. May return null if the state has not exit action.

Returns:

state exit action method handle.