points to the disk location, enabling overwriting with
updated bytes. My doubt is whether the second transaction forces
writing bytes corresponding to object2 also to the disk, which is
needless ?
J.Ganesan
On Nov 5, 3:56 am, Ikai Lan (Google) ika...@google.com wrote:
If all 4000 entites
the entity. On the contrary, proliferating
entities entails more put(). ( let us assume that there is no
indexing ). There seems to be a tangle here.
J.Ganesan
On Nov 5, 6:47 pm, Jeff Schnitzer j...@infohazard.org wrote:
You're still thinking of an RDBMS. Here is a more accurate mental
model
Thank you, Gerald. I will look for alternative implementations if I
can not call put() many times within a transaction. I am waiting for
Ikai's comments.
J.Ganesan
On Nov 4, 11:02 am, Gerald Tan woefulwab...@gmail.com wrote:
If there is no need to reference the objects from outside the group
( oneOfTheFiveExistingEntity ) ; // called
4000 times per request.
// for a reason not apparent in the code, batch put is not
possible.
}
// end transaction
}
No indexing is to be done. I am not worried about performance. My
concern is only about persistence.
J.Ganesan
--
You received this message
transaction can I call put() for
4000 times? If not, I will begin to look for alternative
implementations.
J.Ganesan
--
Ikai Lan
Developer Programs Engineer, Google App Engine
plus.ikailan.com | twitter.com/ikai
On Thu, Nov 3, 2011 at 8:13 AM, J.Ganesan j.gane...@datastoregwt.comwrote:
I
Migrate your application using
com.google.gwt.canvas.dom.client.CssColor.
J.Ganesan
www.DataStoreGwt.com
Persist objects directly in GAE
On Sep 21, 2:54 pm, KRS krishnaro...@gmail.com wrote:
Hi all
We had web application developed in netbeans and using GWT. Now i
tried to move
())
{
txn.rollback();
}
}
}
I do not think app engine can be configured. However, at application
level you can execute transaction with a configurable number of
retrys.
J.Ganesan
www.DataStoreGwt.com
On Aug 31, 8:35 am, Luke travalle...@gmail.com wrote:
hi,
when we
Why don't you consider splitting the keywords and maintaining a
memcache-resident HashMapString,id ?
J.Ganesan
www.DataStoreGwt.com
On Aug 26, 9:25 pm, realdope rte...@gmail.com wrote:
Hi,
I know that you cannot do a LIKE clause in BigTable. How do you get around
this issue?
Suppose I'm
wise sorting, at client level.
J.Ganesan
www.DataStoreGwt.com
On Aug 14, 7:21 pm, MK Z v5s12.msc...@gmail.com wrote:
Hi,
Thanks for your reply. The category is not related to the group - category
holds value like Science/Tech/Music while Group stores value like
Teens/Kids/Adult. The reason I
to ensure that the cardinality of key1List equals
that of key2List.
I feel this parallels rdbms representation of many-to-many
relationship.
J.Ganesan
www.DataStoreGwt.com
On Jul 22, 8:21 pm, Ikai Lan (Google) ika...@google.com wrote:
A few comments:
1. That's more of a 1:1 relationship
2. Try
gae is a fit server-cum-persistence
mechanism for your application.
J.Ganesan
www.DataStoreGwt.com
On Jul 23, 2:17 pm, Sébastien Tromp sebastien.tr...@gmail.com wrote:
Hello,
I am building a multiplayer game whose play sessions are rather short
(around 5 mins). Everytime a player sends
If you are looking for a tool which enables to have a single business
model for both datastore access and for presentation, please examine
the project here http://www.datastoregwt.com/Demo.jsp .
J.Ganesan
www.DataStoreGwt.com
On Jul 23, 2:21 pm, Sébastien Tromp sebastien.tr...@gmail.com wrote
Excellent. gaeom indeed gives an object-covering to Google App Engine.
The developer can get the feeling that GAE is an embedded database.
J.Ganesan
www.DataStoreGwt.com
On Jul 20, 2:41 am, Peter Murray yarrumre...@gmail.com wrote:
Greetings Java Appengine folks,
I've just released the first
I am curious to know the persistence engine used by Google +. Is it
not Google App Engine ?
J.Ganesan
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To post to this group, send email to google-appengine-java@googlegroups.com
DataStoreGwt provides an alternative to JPA itself. Please see whether
it suits your project.
J.Ganesan
www.DataStoreGwt.com
On Jun 19, 6:55 pm, Paolo temph...@googlemail.com wrote:
Nobody?
--
You received this message because you are subscribed to the Google Groups
Google App Engine
in-memory data structures, is one example
immediately coming to my mind.
J.Ganesan
www.DataStoreGwt.com
On Jun 19, 8:06 am, Ikai Lan (Google) ika...@google.com wrote:
App Engine sessions are backed by Memcache and Datastore, so these will be
available to all your instances.
Ikai Lan
Developer
Why not call memcacheService.delete( keyObject ) ?
J.Ganesan
On Jun 14, 8:25 pm, tempy fay...@gmail.com wrote:
Hello all,
I'm wondering if its possible to design a cache using data in static
variables. I have certain pieces of small and unchanging data, such
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