I finally got it working. Here's the modified function:
public boolean add(IModifiable modifiable, IChangeListener listener) {
// TODO Auto-generated method stub
checkResources();
HashSet<IChangeListener> listenerSet = new
HashSet<IChangeListener>();
Set<IChangeListener> listeners =
listenersMap.putIfAbsent(modifiable, listenerSet);
if (listeners != null) {
return listeners.add(listener);
} else return listenerSet.add(listener);
}
I'm not sure if that's a good approach or not, but it works for me and
that's fantastic.
Daniel
On Tue, Feb 7, 2012 at 9:30 AM, Daniel Watrous <daniel.watr...@gmail.com> wrote:
> So I was just looking at what I sent along and it seems that
> putIfAbsent(modifiable, new HashSet<IChangeListener>()) should return
> the value component, which should be the new HashSet<IChangeListener>.
> Even if the key modifiable already exists, it should return the
> previously created HashSet<IChangeListener>.
>
> I'm confused that listener is coming back null.
>
> Daniel
>
> On Tue, Feb 7, 2012 at 9:21 AM, Daniel Watrous <daniel.watr...@gmail.com>
> wrote:
>> That helped. I'm getting really close.
>>
>> I'm now getting a null pointer exception in this function
>>
>> public boolean add(IModifiable modifiable, IChangeListener listener) {
>> // TODO Auto-generated method stub
>> checkResources();
>> Set<IChangeListener> listeners =
>> listenersMap.putIfAbsent(modifiable,
>> new HashSet<IChangeListener>());
>> return listeners.add(listener);
>> }
>>
>> listeners is null.
>>
>> I noticed that start(Duration pollFrequency) in GaeModificationWatcher
>> was never getting called, so I updated my WicketApplication to set it
>> like this:
>>
>> IModificationWatcher watcher = new GaeModificationWatcher();
>> watcher.start(Duration.ONE_SECOND);
>> getResourceSettings().setResourceWatcher(watcher);
>>
>> But that didn't help my problem. I'm still trying to follow
>> http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
>>
>> Any pointers?
>>
>> Thanks,
>> Daniel
>>
>> On Tue, Feb 7, 2012 at 8:42 AM, Martin Grigorov <mgrigo...@apache.org> wrote:
>>> Try with java.util.Map.Entry
>>>
>>> On Tue, Feb 7, 2012 at 5:39 PM, Daniel Watrous <daniel.watr...@gmail.com>
>>> wrote:
>>>> I've now created a class MyRequestCycleListener extends
>>>> AbstractRequestCycleListener.
>>>>
>>>> I'm having a little trouble building class GaeModificationWatcher
>>>> implements IModificationWatcher. I've tried following this example:
>>>> http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
>>>>
>>>> to create the public void checkResources() function, but I'm not sure
>>>> what Entry class to import. I have tried importing these two Entry
>>>> classes:
>>>> org.apache.wicket.util.collections.IntHashMap.Entry
>>>> import
>>>> com.google.appengine.repackaged.com.google.common.collect.Multiset.Entry
>>>>
>>>> It seems no matter which Entry class I import I get errors like:
>>>>
>>>> Multiple markers at this line
>>>> - Entry cannot be resolved to a type
>>>> - The constructor
>>>> HashSet<Entry<IModifiable,Set<IChangeListener>>>(Set<Map.Entry<IModifiable,Set<IChangeListener>>>)
>>>> is
>>>> undefined
>>>> - Incorrect number of arguments for type IntHashMap.Entry; it cannot
>>>> be parameterized with arguments <IModifiable,
>>>> Set<IChangeListener>>
>>>>
>>>> Thanks for any pointers.
>>>>
>>>> Daniel
>>>>
>>>>
>>>> On Tue, Feb 7, 2012 at 7:07 AM, Martin Grigorov <mgrigo...@apache.org>
>>>> wrote:
>>>>> On Tue, Feb 7, 2012 at 3:53 PM, Daniel Watrous <daniel.watr...@gmail.com>
>>>>> wrote:
>>>>>> Thanks Martin,
>>>>>>
>>>>>> I did make that much progress yesterday after sending this, but I
>>>>>> can't figure out how to get the Application inside the onBeginRequest
>>>>>> method that I override. In the other examples they call
>>>>>> getApplication()
>>>>>>
>>>>>> @Override
>>>>>> protected void onBeginRequest() {
>>>>>> if
>>>>>> (getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
>>>>>> {
>>>>>> final GaeModificationWatcher resourceWatcher =
>>>>>> (GaeModificationWatcher) getApplication()
>>>>>> .getResourceSettings().getResourceWatcher(true);
>>>>>> resourceWatcher.checkResources();
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> How can I get the Application object?
>>>>>
>>>>> Application.get()
>>>>>
>>>>>>
>>>>>> Daniel
>>>>>>
>>>>>> On Mon, Feb 6, 2012 at 11:43 PM, Martin Grigorov <mgrigo...@apache.org>
>>>>>> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> On Tue, Feb 7, 2012 at 1:32 AM, Daniel Watrous
>>>>>>> <daniel.watr...@gmail.com> wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I'm following up on a previous thread that's still unresolved. I would
>>>>>>>> like GAE to automatically reload my HTML when I save changes. Classes
>>>>>>>> are reloaded when I save (compile) them, but I have to restart each
>>>>>>>> time for HTML changes.
>>>>>>>>
>>>>>>>> There are some old articles that show how to do this, but they deal
>>>>>>>> with older versions of Wicket and GAE. For example:
>>>>>>>> http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
>>>>>>>> http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241.html
>>>>>>>> http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java
>>>>>>>>
>>>>>>>> Those suggest creating a class MyWebRequestCycle extends
>>>>>>>> WebRequestCycle, but wicket 1.5 doesn't have WebRequestCycle.
>>>>>>>>
>>>>>>>> How can I accomplish this same thing in the current version of wicket?
>>>>>>>
>>>>>>> application.getRequestCycleListeners().add(new MyRequestCycleListener())
>>>>>>>
>>>>>>> class MyRequestCycleListener extends AbstractRequestCycleListener {
>>>>>>> // override the method you need here
>>>>>>> }
>>>>>>>
>>>>>>> Once you have it you can contribute it to gae-initializer project so
>>>>>>> other people can re-use it and improve it.
>>>>>>>
>>>>>>>>
>>>>>>>> Daniel
>>>>>>>>
>>>>>>>> ---------------------------------------------------------------------
>>>>>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>>>>>>>> For additional commands, e-mail: users-h...@wicket.apache.org
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Martin Grigorov
>>>>>>> jWeekend
>>>>>>> Training, Consulting, Development
>>>>>>> http://jWeekend.com
>>>>>>>
>>>>>>> ---------------------------------------------------------------------
>>>>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>>>>>>> For additional commands, e-mail: users-h...@wicket.apache.org
>>>>>>>
>>>>>>
>>>>>> ---------------------------------------------------------------------
>>>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>>>>>> For additional commands, e-mail: users-h...@wicket.apache.org
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Martin Grigorov
>>>>> jWeekend
>>>>> Training, Consulting, Development
>>>>> http://jWeekend.com
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>>>>> For additional commands, e-mail: users-h...@wicket.apache.org
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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>>>>
>>>
>>>
>>>
>>> --
>>> Martin Grigorov
>>> jWeekend
>>> Training, Consulting, Development
>>> http://jWeekend.com
>>>
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