org.statefulj.framework.core.annotations

Annotation Type Transition

@Target(value=METHOD)
 @Retention(value=RUNTIME)
 @Documented
 @Component
public @interface Transition

A Transition is a reaction to an Event directed at a Stateful Entity. The Transition can involve a possible change in State and a possible Action. If you want to map multiple Transitions to a method, encapsulate the Transition annotation with a Transitions annotation. If you want to change State without invoking a method, include the Transition within the StatefulController.noops() field

Author:

Andrew Hall

Field Summary

Fields

Modifier and Type	Fields and Description
static String	ANY_STATE

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
String	event Defines the Event

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	from Defines the "from" State.
boolean	reload Defines whether to reload the Stateful Entity before invoking the method.
String	to Defines to the "to" State.

Field Detail

ANY_STATE

public static final String ANY_STATE

Element Detail

event

public abstract String event

Defines the Event

Returns:

the event

from

public abstract String from

Defines the "from" State. A value of "*" implies that any State qualifies as a "from" State

Returns:

the "from" State value

Default:

"*"

to

public abstract String to

Defines to the "to" State. A value of "*" implies that the "to" state is the value of the current State

Returns:

the "to" State value

Default:

"*"

reload

public abstract boolean reload

Defines whether to reload the Stateful Entity before invoking the method. Set to true to manage potential concurrency conflicts

Returns:

If true, will reload the Stateful Entity before invoking the method

Default:

false