Re: [appengine-java] Google App Engine community support is moving to Stack Overflow

2012-02-06 Thread Liang Ding
Nice move ;-) On Tue, Feb 7, 2012 at 10:17 AM, Ikai Lan i...@google.com wrote: *Hi App Engine Developers, In the last few years, the QA website Stack Overflowhttp://www.stackoverflow.com/has become an invaluable tool for developer communities. We’re pleased to announce that we are

Re: [appengine-java] I have an error here with the Google App Engine

2011-11-24 Thread Liang Ding
See the GAE official documentationhttps://code.google.com/appengine/docs/quotas.htmls for more details. On Fri, Nov 25, 2011 at 7:24 AM, Thomas Z. tommyzhao...@gmail.com wrote: Here's exactly what it says: Over Quota This Google App Engine application is temporarily over its serving quota.

Re: [appengine-java] Counting read/write operations for monitoring quota

2011-11-16 Thread Liang Ding
Hi, I am doing the exact same thing as you. I wrap the interface put() and get() in a DAO-like class, cached the increments of put or get in memcache, and a cron job to write stat. got from memcache. P.S. Small operations over quota maybe caused by invocation of method countEntities(). On Wed,

Re: [appengine-java] SDK 1.5.5 in Maven Central Repos?

2011-10-13 Thread Liang Ding
Yep, thank you ;-) On Fri, Oct 14, 2011 at 3:25 AM, David Chandler drfibona...@google.comwrote: It's been released to Maven Central, should show up in an hour or two. /dmc On Thu, Oct 13, 2011 at 6:27 AM, Liang Ding dl88...@gmail.com wrote: Hi, all. The SDK 1.5.5 released several days

[appengine-java] Help with sharded counters and loading results.

2011-10-06 Thread Liang Ding
how many shard counters for a single product entity you made? i think we should consider the time for writing and retrieving, which one is the most important for this app. On Thursday, October 6, 2011, dnkoutso dnkou...@gmail.com wrote: I have an Android client that deals with product items and

Re: [appengine-java] Help with sharded counters and loading results.

2011-10-06 Thread Liang Ding
stores the sum count as a property of a product entity, updates it with a cron job maybe a teade off solution On Thursday, October 6, 2011, dnkoutso dnkou...@gmail.com wrote: We have 5 shard counters per product. Both are importantI would say retrieving perhaps more important. Each

Re: [appengine-java] Re: .A research: how long will your java app instance start up fully?

2011-09-30 Thread Liang Ding
3-4 seconds too, with a lightweight framework - Latke-GAE. On Fri, Sep 30, 2011 at 2:28 PM, Simon Knott knott.si...@gmail.com wrote: 3-4 seconds -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To view this discussion on the web

Re: [appengine-java] Re: how to port application from the AppEngine to other webcontainers, e.g.Jboss or tomcat?

2011-08-26 Thread Liang Ding
Here http://code.google.com/p/latke/ is a Servlet fwk project (dev in progress) wraps the most of GAE APIs for application that based on the framework could deploy to a standard Servlet container and GAE environment. And, here http://b3log-solo.googlecode.com is a real-world blogging program

Re: [appengine-java] Re: Netbeans support

2011-07-19 Thread Liang Ding
Hi, You can have a look at maven-gae-plugin: http://code.google.com/p/maven-gae-plugin/, and here http://code.google.com/p/b3log-solo/ is a real-world project with NetBeans IDE, GAE/J and Maven. On Tue, Jul 19, 2011 at 2:27 PM, Ian Marshall ianmarshall...@gmail.comwrote: Have you looked at

Re: [appengine-java] gae不支持事务?

2010-12-16 Thread Liang Ding
支持事务,但是不能在同一个事务中操作属于不同实体组的实体。 2010/12/16 EtuO nbaer...@gmail.com Caused by: java.lang.IllegalArgumentException:* can't operate on multiple entity groups in a single transaction*. found both Element { type: CityNum name: 013001 } and Element { type: ScheduleProcess name: 013001 }

Re: [appengine-java] gae不支持事务?

2010-12-16 Thread Liang Ding
Hi, kartik. It works, but how can I rollback the 'first transaction' if the following operations throws an exception? 2010/12/16 kartik kudada kartik.kud...@gmail.com You can not operate on two entities in single transaction unless both are entity groups. First delete CityNum in one

Re: [appengine-java] gae不支持事务?

2010-12-16 Thread Liang Ding
committed. What I can think of right now is, you can manually delete it. but it is not the genuine solution. Why don't you create owned relation between these two table? Tell me about your thoughts? Regards, Kartik 2010/12/16 Liang Ding dl88...@gmail.com Hi, kartik. It works, but how can I

Re: 回复: Re: [appengine-java] Re: Can't save an object into the Datasore (JPA)

2010-12-14 Thread Liang Ding
又发现一个中国人 ;-) 2010/12/14 EtuO nbaer...@gmail.com 看不懂 在 2010-12-14 下午7:29,Cesar Ruiz crui...@gmail.com编写: Hey, thank you for replying. but what exactly do you mean by starting the local environment services, I created the Datastore indexes.xml and Im using the google plugin. I ran the

[appengine-java] A blogging program based on GAE(Java)

2010-10-13 Thread Liang Ding
http://code.google.com/p/b3log-solo -- My Blog: http://blog.csdn.net/DL88250 Open Source, Open Mind, Open Sight, Open Future! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group.

Re: [appengine-java] no matching index found..

2010-09-27 Thread Liang Ding
Hi, try remove all indexes(command provided by python SDK) on GAE and redeploy your app. On Mon, Sep 27, 2010 at 3:11 PM, Prateek bittooagar...@gmail.com wrote: Hi, Yesterday i just tried deploying my app on GAE. Everything worked fine in the local deployment. But as soon as i tried access