com.groiss.event
Class EventManager

java.lang.Object
  com.groiss.event.EventManager

public class EventManager
extends java.lang.Object

The event-manager allows registrating for events, unregistrating, and raising events.

Field Summary

static int	CURRENT_TX
static int	NEW_TX

Constructor Summary

EventManager()

Method Summary

static void	raiseEvent(Event e, int txtype) Raises an event.
static long	register(java.lang.String name, java.lang.Class eh, java.lang.Object context) Register an event handler
static long	register(java.lang.String name, java.lang.Class eh, java.lang.Object context, ActivityInstance registrant) Register an event handler
static void	unregister(long oid) unregister an event handler
static void	unregister(java.lang.String name, ProcessInstance registrant) unregister an event handler
static void	unregisterAll(ProcessInstance registrant) unregister all event handlers of a process

Methods inherited from class java.lang.Object

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

Field Detail

CURRENT_TX

public static final int CURRENT_TX

See Also:

Constant Field Values

NEW_TX

public static final int NEW_TX

See Also:

Constant Field Values

Constructor Detail

EventManager

public EventManager()

Method Detail

raiseEvent

public static void raiseEvent(Event e,
                              int txtype)
                       throws java.lang.Exception

Raises an event.

Parameters:

e - the event

txtype - for future use, ignored

Throws:

java.lang.Exception

register

public static long register(java.lang.String name,
                            java.lang.Class eh,
                            java.lang.Object context)
                     throws java.lang.Exception

Register an event handler

Parameters:

name - the name of the event

eh - the class of the eventhandler, must be a subclass of EventHandler

context - a context object

Returns:

the unique oid of this registration (use for unregister)

Throws:

java.lang.Exception

register

public static long register(java.lang.String name,
                            java.lang.Class eh,
                            java.lang.Object context,
                            ActivityInstance registrant)
                     throws java.lang.Exception

Register an event handler

Parameters:

name - the name of the event

eh - the class of the eventhandler, must be a subclass of EventHandler

context - a context object

registrant - an activity of te registering process instance, or the process instance itself

Returns:

the unique oid of this registration (use for unregister)

Throws:

java.lang.Exception

unregister

public static void unregister(long oid)
                       throws java.lang.Exception

unregister an event handler

Throws:

java.lang.Exception

unregister

public static void unregister(java.lang.String name,
                              ProcessInstance registrant)
                       throws java.lang.Exception

unregister an event handler

Parameters:

name - the event name

registrant - the process which registered (may be null)

Throws:

java.lang.Exception

unregisterAll

public static void unregisterAll(ProcessInstance registrant)
                          throws java.lang.Exception

unregister all event handlers of a process

Throws:

java.lang.Exception