[appengine-java] Re: Transaction locking with grandparent -> parent -> grandchild

Hi, You should read http://code.google.com/appengine/articles/transaction_isolation.html You will get there most of your answers regards didier On Dec 23, 4:36 pm, Michael Green wrote: > I have a relationship model with one-to-many relationships between a > grandparent, multiple parents each

[appengine-java] Re: Processing large xml-files with JAXB in app engine

Hi, I use the xml parsing classes that are natively part of GAE JDK itself : javax.xml.parsers.DocumentBuilder, javax.xml.parsers.DocumentBuilderFactory, org.w3c.dom.Document, etc. See bottom of http://code.google.com/appengine/docs/java/jrewhitelist.html Aren't those enough for what you want to

[appengine-java] Re: tapioca-orm

Hi, You should give a try to Objectify: http://code.google.com/p/objectify-appengine/ Same purpose as Tapioca but much more active in terms of evolutio. I personnally use it heavily with high satisfaction regarding datastore library evolution by Google, you should read the statement by Ikai La

[appengine-java] Re: 500 Internal server error from UserService

In the app engine log, I see warning messages like the following: 1. 12-25 09:58PM 22.787 /pmproc/login 500 10689ms 0cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10,gzip(gfe),gzip(gfe),gzip(gfe) 5

[appengine-java] 500 Internal server error from UserService

I've implemented User Service in my application following the tutorial posted here: http://code.google.com/webtoolkit/doc/1.6/tutorial/appengine.html and deployed my application to the App Engine. When the app loads, many times

[appengine-java] hosted mode broken with GWT 2.1.1+GAE 1.4 using chrome dev?

I upgraded to GWT 2.1.1 +GAE 1.4 and am seeing all kinds of strange startup behavior in hosted mode under chrome dev. version, even with the google's own "greetings" app. The app fails to launch. Is anybody else having success with these parameters? -- You received this message because you are su

[appengine-java] Problem with persistence

Hi ! I have a problem with persist a class. It is strange... The problem is that sometimes, persist and sometimes not persist the class "Equipo" . I have a persist class "Torneo" that has to many class "Equipo", and when persist "Equipo" sometimes persist in the datastore and sometimes not persist.

[appengine-java] Unable to compare dates

As a wild guess (considering that there's no indication of the API or the status that's encountered when the attempted code 'fails'), try using startFrom.getTime() & endFrom.getTime(). This code concatenates Date#toString() formatted date strings into the query. Really, it's important to use pa

[appengine-java] tapioca-orm

Hi, I rewatched google talk 2008, and found this library for datastore tapioca, may i know is this project still active. Is google planning to integrate this with appengine sdk any sooner ? how soon will we able to see feature like distributed transaction support ? please advice. thank you --

[appengine-java] Unable to compare dates

Hie I am storing the two date components in my entities. However while trying to compare before adding another fails and query is unable to compare the date fields even they are same. Here is the query: String query = "select from " + PocVacationSchedule.class.getName() + " where " +

Re: [appengine-java] Re: cost effective way to store PDF and word docs in datastore / blobstore service

It is possible to store one page / two page PDF (smaller than 1 mb) inside normal datastore. By using byte[] in entity datatype. On Sat, Dec 25, 2010 at 12:31 PM, Patrick Twohig wrote: > Just because billing is enabled that doesn't mean that you are billed for > using it. It just uncaps your quot