Re: [google-appengine] Google Cloud Endpoint initialization

2014-04-24 Thread Gilberto Torrezan Filho
Let me see if I understood correctly: are you saying a instance of my 
entire VM are launched every time a request is handled by the GCE engine? 
All my singleton classes (DAOs, default values, some utilities) are 
reinstantiated each request?

I don't save sensitive state in memory (I use Memcache/Datastore for that), 
but some objects cloud be reused among requests, the way it works on 
regular GAE frontend requests.

On Wednesday, April 23, 2014 4:13:52 AM UTC-3, Vinny P wrote:

 On Wed, Apr 16, 2014 at 8:37 PM, Mike D mdichi...@fittrace.comjavascript:
  wrote:

 I have some initialization stuff that I'd like to do before GCE can be 
 used.  How would I do this?  I tried creating a ServletContextListener and 
 then calling a static method on my GCE but that doesn't work.  In debugging 
 I can see that the GCEs static variables are not set when a method is 
 invoked.



 Endpoints applications are slightly different than normal web 
 applications; as you remarked in your post, static variables don't retain 
 their values. 

 If you need to do initialization, you should handle init separately 
 (perhaps as part of a cron job) and save the results into the 
 datastore/cloud storage/cloud SQL.
   
  
 -
 -Vinny P
 Technology  Media Advisor
 Chicago, IL

 App Engine Code Samples: http://www.learntogoogleit.com
  


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Re: [google-appengine] Google Cloud Endpoint initialization

2014-04-24 Thread Vinny P
No. Instances don't get reloaded per request with Endpoints. That would be
a terrible waste of resources.

Sorry, I probably should have clarified/explained more in my previous
email, but I was in a bit of a rush when I wrote that. Endpoints doesn't
support static methods ( see this article, scroll down to the API Methods
headerhttps://cloud.google.com/developers/articles/google-cloud-endpoints-for-android)
unless they're marked as private. When OP tried to run his static
method,
it may not have run or failed off.

In addition, I cheated a little bit on the answer and noted that the OP
cross-posted his question to
SOhttp://stackoverflow.com/questions/23123160/google-cloud-endpoint-initialization,
where he said that he needed data tables precomputed during init. That's
something that really needs to be moved to a regular cron or similar.

@OP/Mike: Can you post a simple test case?




-
-Vinny P
Technology  Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com




On Thu, Apr 24, 2014 at 12:50 PM, Gilberto Torrezan Filho 
gilberto.torre...@gmail.com wrote:

 Let me see if I understood correctly: are you saying a instance of my
 entire VM are launched every time a request is handled by the GCE engine?
 All my singleton classes (DAOs, default values, some utilities) are
 reinstantiated each request?

 I don't save sensitive state in memory (I use Memcache/Datastore for
 that), but some objects cloud be reused among requests, the way it works on
 regular GAE frontend requests.

 On Wednesday, April 23, 2014 4:13:52 AM UTC-3, Vinny P wrote:

 On Wed, Apr 16, 2014 at 8:37 PM, Mike D mdichi...@fittrace.com wrote:

 I have some initialization stuff that I'd like to do before GCE can be
 used.  How would I do this?  I tried creating a ServletContextListener and
 then calling a static method on my GCE but that doesn't work.  In debugging
 I can see that the GCEs static variables are not set when a method is
 invoked.



 Endpoints applications are slightly different than normal web
 applications; as you remarked in your post, static variables don't retain
 their values.

 If you need to do initialization, you should handle init separately
 (perhaps as part of a cron job) and save the results into the
 datastore/cloud storage/cloud SQL.


 -
 -Vinny P
 Technology  Media Advisor
 Chicago, IL

 App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] Google Cloud Endpoint initialization

2014-04-23 Thread Vinny P
On Wed, Apr 16, 2014 at 8:37 PM, Mike D mdichiapp...@fittrace.com wrote:

 I have some initialization stuff that I'd like to do before GCE can be
 used.  How would I do this?  I tried creating a ServletContextListener and
 then calling a static method on my GCE but that doesn't work.  In debugging
 I can see that the GCEs static variables are not set when a method is
 invoked.



Endpoints applications are slightly different than normal web applications;
as you remarked in your post, static variables don't retain their values.

If you need to do initialization, you should handle init separately
(perhaps as part of a cron job) and save the results into the
datastore/cloud storage/cloud SQL.


-
-Vinny P
Technology  Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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[google-appengine] Google Cloud Endpoint initialization

2014-04-22 Thread Mike D
I have some initialization stuff that I'd like to do before GCE can be 
used.  How would I do this?  I tried creating a ServletContextListener and 
then calling a static method on my GCE but that doesn't work.  In debugging 
I can see that the GCEs static variables are not set when a method is 
invoked.

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