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| author | Nick Hudson <nick.hudson@isode.com> | 2012-01-12 16:42:26 (GMT) |
|---|---|---|
| committer | Kevin Smith <git@kismith.co.uk> | 2012-01-12 16:50:56 (GMT) |
| commit | 903605ff58e7b75d6872a1ec14383971b128a876 (patch) | |
| tree | 1122c69a7381c6be474012e752c73834d56f5ada /src/com/isode/stroke/eventloop | |
| parent | d78e4110cd919a4a1f8b2f2ff7aa6640f53c49b3 (diff) | |
| download | stroke-903605ff58e7b75d6872a1ec14383971b128a876.zip stroke-903605ff58e7b75d6872a1ec14383971b128a876.tar.bz2 | |
Add some javadoc to Event.java
In trying to use the Event class I wasn't sure exactly what it was
doing so have added javadoc to try and make it clearer.
I also added "toString()" method to Event.java for debugging purposes.
Test-information:
"ant javadoc" works and info looks as expected.
Running in debugger now shows me info derived from "toString()" method
when I click on Event objects
Diffstat (limited to 'src/com/isode/stroke/eventloop')
| -rw-r--r-- | src/com/isode/stroke/eventloop/Event.java | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/src/com/isode/stroke/eventloop/Event.java b/src/com/isode/stroke/eventloop/Event.java index c4784d6..4c236bf 100644 --- a/src/com/isode/stroke/eventloop/Event.java +++ b/src/com/isode/stroke/eventloop/Event.java @@ -4,15 +4,47 @@ * See Documentation/Licenses/GPLv3.txt for more information. */ /* - * Copyright (c) 2010, Isode Limited, London, England. + * Copyright (c) 2010-2012, Isode Limited, London, England. * All rights reserved. */ package com.isode.stroke.eventloop; +/** + * An Event object represents an external event that requires processing. + * A concrete {@link EventLoop} implementation must ensure that Events are + * processed in the application's main event loop. + * + * <p>An application (and any concrete class of EventLoop) should treat Events + * as opaque objects to be passed to {@link EventLoop#handleEvent(Event)}. + * + * <p>Event processing is designed to happen in the main event loop, so for + * example a GUI application might handle Events in the following manner: + * <pre> + * EventLoop eventLoop = new EventLoop() { + * protected void post(final Event event) { + * // Invoke the callback in the AWT display thread + * SwingUtilities.invokeLater(new Runnable() { + * public void run() { + * handleEvent(event); + * } + * }); + * } + * }; + * . + * . + * . + * client.onConnected.connect(new Slot() { + * public void call() { + * // This will always be called inside the event dispatching thread + * updateSomeTextFieldInTheGUI("Connected"); + * } + * }); + * </pre> + * + */ public class Event { public interface Callback { - void run(); } @@ -39,4 +71,12 @@ public class Event { final int id; final EventOwner owner; public final Callback callback; + + @Override + public String toString() { + return "Event with id=" + id + + " callback=" + callback + + (owner == null ? " (no owner information)" : " owner=" + owner); + + } } |