Thanks for the code. I have three suggestions (mostly from my previous
post):
1) Are you maybe loading that singleton class in different classloaders?
Try logging the classloader object reference that tries to create the
PersistenceManagerFactory. You can add a static initializer ABOVE
pmfInstance.
static {
logger.log(Level.SEVERE, "Loading PMF in " + PMF.class.getClassLoader()");
}
2) Patch the datanucleus plugin code that makes the check for duplicate PMF
creations to log a stacktrace first thing every time it's called. Then
you'll know for sure which code paths are causing this to happen.
3) Disable the check if you're sure you're only creating the PMF a small
number of times.
On Wed, Sep 2, 2009 at 2:45 AM, Vik <[email protected]> wrote:
> Hie
> here is the code I am using:
> package vik.sakshum.sakshumweb.jsp.model.jdo;
>
> import javax.jdo.JDOHelper;
> import javax.jdo.PersistenceManagerFactory;
>
> import org.compass.core.Compass;
> import org.compass.core.config.CompassConfiguration;
> import org.compass.core.config.CompassEnvironment;
> import org.compass.gps.CompassGps;
> import org.compass.gps.device.jdo.Jdo2GpsDevice;
> import org.compass.gps.impl.SingleCompassGps;
>
> public final class PMF {
> private static final PersistenceManagerFactory pmfInstance =
> JDOHelper.getPersistenceManagerFactory("transactions-optional");
>
> private static final Compass compass;
> private static final CompassGps compassGps;
>
> static {
> compass = new CompassConfiguration().setConnection("gae://index")
> .setSetting(CompassEnvironment.ExecutorManager.EXECUTOR_MANAGER_TYPE,
> "disabled")
> .addScan("vik.sakshum.sakshumweb.jsp.model.jdo")
> .buildCompass();
>
> compassGps = new SingleCompassGps(compass);
> compassGps.addGpsDevice(new Jdo2GpsDevice("appenine", pmfInstance));
> compassGps.start();
>
> compassGps.index();
>
> }
>
> private PMF() {}
>
> public static PersistenceManagerFactory get() {
> return pmfInstance;
> }
>
> public static Compass getCompass(){
> return compass;
> }
> }
>
> any clues?
>
> Thankx and Regards
>
> Vik
> Founder
> www.sakshum.com
> www.sakshum.blogspot.com
>
>
> On Wed, Sep 2, 2009 at 12:34 AM, Toby Reyelts <[email protected]> wrote:
>
>> Vik,
>>
>> Do you have some sample code to reproduce this? By default, we throw an
>> exception if you try to create more than one PersistenceManagerFactory. Are
>> you using a singleton class to prevent more than one from being created? If
>> so, are you maybe loading that singleton class in different classloaders?
>> (Try logging the classloader object reference that tries to create the
>> PersistenceManagerFactory).
>>
>> Lastly, you can disable the exception if you want (details should be in
>> the exception message), but it will be a performance problem for you if
>> you're creating more than a few PersistenceManagerFactory's.
>>
>>
>> On Tue, Sep 1, 2009 at 1:51 PM, Vik <[email protected]> wrote:
>>
>>> anyone any updates on this please?
>>> Thankx and Regards
>>>
>>> Vik
>>> Founder
>>> www.sakshum.com
>>> www.sakshum.blogspot.com
>>>
>>>
>>> On Sun, Aug 30, 2009 at 8:51 PM, Vik <[email protected]> wrote:
>>>
>>>> Hie
>>>> Any one using compass on his GAE app?
>>>>
>>>> I am frequently getting error cannot initialize PMF where there is
>>>> static code to initialize compass apis.
>>>> Any idea how to resolve?
>>>>
>>>> Thankx and Regards
>>>>
>>>> Vik
>>>> Founder
>>>> www.sakshum.com
>>>> www.sakshum.blogspot.com
>>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
> >
>
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