Let's say you have a Profile entity with an id of 123. The easiest
way to retrieve it is to use DatastoreService.get(), not a query.
Construct a Key and pass that to get():
DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
Key key = KeyFactory.createKey(Profile, 123L);
Entity
Can students install Eclipse and run Hello, World on GAE in 3.5 hours?
Almost certainly. How much more sophisticated can the sample project
get? This is a hard thing to judge without knowing your students.
Back when I was a CSc student, data structures was a 200-level class
and few (if any)
That's not quite correct - in the low-level datastore, this isn't an
issue because absent properties will simply be missing from the
Entity.
In Objectify, absent properties are ignored. You can add fields of
primitive types without ill effect - they will simply have their
default values. This
Have you tried using appstats?
(isn't this group supposed to be readonly?)
Jeff
On Sun, Mar 11, 2012 at 12:28 PM, n3phele n3ph...@gmail.com wrote:
Hi
Im trying to understand the performance of my GAE app, which appears
to be declining over time.
Here is a log from my Java app .. please
I find that you're either one of those people who lives on
StackOverflow or you're one of those people who only visits when
they're searching for something specific. I'm the later myself; I
can't follow SO the way I follow an email list. Truth be told, I
have the google-appengine list and the
I also see a few entries like this in my logs. My site is still up,
however.
(this mailing list is about to go read-only - further discussion should go
on the regular google-appeng...@googlegroups.com mailing list)
Jeff
On Tue, Mar 6, 2012 at 2:38 PM, Zappa kbhdk1...@gmail.com wrote:
idea, and I think that will work. My doubt was
about the use of the resource...
I think that using task queue (as suggested by Ian Marshall) is less
expansive than a cron job...
Are you agree?
Thanks
Alessandro
On Monday, March 5, 2012 4:19:04 PM UTC+1, Jeff Schnitzer wrote:
When you set
This. Please. This has been killing me for years.
GWT adds a little restart button on the console. I want that button for
non-GWT apps - and specifically a hotkey that will press it.
For some apps you can effectively get this by executing touch
war/WEB-INF/appengine-web.xml. However,
Time to migrate to Git! :-)
Jeff
On Thu, Mar 1, 2012 at 9:25 AM, Rick Mangi r...@broadcastr.com wrote:
Dilbert, see my reply on the ticket.
Max - that comment about svn being writable is nonsense. I wish you guys
would talk to your own support engineers. I tried that solution with my
There's been a lot of discussion of the scheduler behavior in Pythonland,
but not much about it's eccentricities in Javaland.
I have a threadsafe=true Java app. Let's say every request completes in
exactly 1s. Settings are: idle instances min 1 max 1, latency auto/auto.
Here is what I
just a bit scared now to get over my daily quotas.
François
On Tuesday, February 28, 2012 5:34:36 PM UTC+1, Jeff Schnitzer wrote:
There's been a lot of discussion of the scheduler behavior in Pythonland,
but not much about it's eccentricities in Javaland.
I have a threadsafe=true Java app
I just realized I sent this to the wrong (java-specific, deprecated) Google
Group. For those of you on both the google-appengine list and this one, I
apologize in advance for the duplicate thread I'm about to start :-(
Jeff
On Tue, Feb 28, 2012 at 12:25 PM, Jeff Schnitzer j
You are overthinking this. To the point of lunacy.
Jeff
On Wed, Feb 22, 2012 at 5:07 PM, Kesava Neeli nke...@gmail.com wrote:
We would like to have a map of all users in datastore in mem cache so that
we can look up for any username/email/number to verify if he is already an
user of our
Your requirement appears to be able to look up user by email. The
datastore does exactly this for you. The idea of loading your entire
datastore into memcache just so you can do lookups is totally absurd.
Jeff
On Wed, Feb 22, 2012 at 6:05 PM, Kesava Neeli nke...@gmail.com wrote:
Jeff,
If
Are all of these 1-2 million users going to be active at the same time? If
not, why do you care if it all fits in memcache?
On the other hand, if they *are* all going to be active at once, I would be
very curious to know what happens...
Jeff
On Tue, Feb 21, 2012 at 2:07 PM, Kesava Neeli
The biggest question is why would you want to do this?
From the low-level api perspective, you can't have a list property with
more than 5k items. But maybe JDO models this list as a proxy to a query.
When you try to load that proxy it's going to load all 5m items out of the
datastore and you
You can schedule tasks to execute in the future. It doesn't guarantee that
the task will be executed then, however. You might find the queue backed
up, in which case you'll get a long delay then all the tasks executing
rapidly.
Alternatively, you can throttle the task queue to execute once per
On Fri, Feb 17, 2012 at 10:22 PM, meric mivi...@gmail.com wrote:
Can i use the remote api on standalone applications that users, other than
the admin, can download and use ?
Can the users see the username/password of my GAE account that i have to
put in my app to access the api ?
Just
From my experiments, writing large #s of entities to a single EG in a
batch put is quite fast and does not cause the throughput problem.
Jeff
On Tue, Feb 7, 2012 at 4:43 PM, Andrew Myers am2...@gmail.com wrote:
I'm sure this is a FAQ but I haven't been able to find the answer so far.
I have
This is a blast from the past. There are now official tools for unit
testing deferred tasks:
http://code.google.com/appengine/docs/java/tools/localunittesting.html#Writing_Deferred_Task_Tests
However, ignore the latch stuff - it works erratically, and if you
have an even slightly complicated
A appreciate the out-of-the-box suggestion, but this strikes me as an
extraordinarily invasive change just to get logging to render the way
it is supposed to.
Presumably there is something in the GAE stack that monkeys with
java.util.logging. I just want to know what it is and how to beat it
Does anyone have logging working when using the local unit testing
system (ie LocalServiceTestHelper)?
For the life of me I cannot get any log output. System.out works, but
the jdk logger does not. I'm running my (TestNG) tests through the
eclipse plugin. I'm pretty certain this isn't a TestNG
You must store the TZ as a separate field.
Alternatively, if you don't need the date to be indexed, you can
convert it back and forth to a String that preserves TZ info (eg, the
ISO-8601 format).
Jeff
On Wed, Jan 25, 2012 at 12:53 PM, Kesava Neeli nke...@gmail.com wrote:
Hi,
I have a
Taking a step back, I should say that if you're using java.util.Date
with timezone info, you're doing it wrong. java.util.Date is a
trainwreck, and any methods that affect an internal notion of a TZ
have been deprecated. If you care about timezones, using Date is a
mistake - it's best to think
I store DateTime, LocalDate, LocalDateTime, and DateTimeZone quite a
lot, but I use Objectify (disclosure: I'm the lead author) which
handles the translation for you (if you enable it). ReadableInstant
objects (eg DateTime) are stored natively as java.util.Date and Local
objects (LocalDate,
On Tue, Jan 24, 2012 at 4:21 PM, John Goche johngoch...@googlemail.com wrote:
The main reason I ask is that loading two entities is about twice as
expensive as loading one twice the size.
Tough. I cannot sacrifice code readability here.
This is an intriguing attitude.
You have arrived with
I use Resteasy with Jackson. It works great. Uses the standard
JAX-RS annotations.
http://docs.jboss.org/resteasy/docs/2.3.0.GA/userguide/html_single/index.html
Jeff
On Mon, Jan 16, 2012 at 11:51 PM, angstrom348 linux.mod...@gmail.com wrote:
I am trying to allow for app engine interaction
As a bonus, you can also use Resteasy for webpage rendering using this
thin framework on top:
http://code.google.com/p/htmleasy/
(I wrote it originally, although another guy maintains it now. I
still use it, and - if I may say so - it's great)
Jeff
On Wed, Jan 18, 2012 at 12:38 AM, Jeff
, Wilson MacGyver wmacgy...@gmail.com wrote:
I'm curious if you could share why you picked resteasy over jersey of other
jax-rs implementations?
On Jan 17, 2012, at 7:38 PM, Jeff Schnitzer j...@infohazard.org wrote:
I use Resteasy with Jackson. It works great. Uses the standard
JAX-RS
One thing that would make this helpful would be the ability to
automatically delete old versions. The current limit of 10 versions
means I have to manually go through and delete old ones before I can
deploy new ones. It would be nice to automate a scrolling window of
versions.
Of course, not
Google has said in the past that there is no negative performance
effect from enabling XG transactions if you only use a single entity
group. The rational thing to do is always enable XG transactions all
the time, but be aware when you span multiple entity groups in a
transaction.
I think it was
On Mon, Jan 2, 2012 at 12:22 PM, Arjan arjan.br...@gmail.com wrote:
I keep getting errors of the hibernate configuration that can not read
'public static' properties. It's due to some reflection limitation on the
GAE. So there may be a more fitting OR mapper to use in GAE.
Are you absolutely
If you are using cloud sql, what's wrong with hibernate?
Jeff
On Sat, Dec 31, 2011 at 4:24 AM, Arjan arjan.br...@gmail.com wrote:
Hi all,
When google announced cloud sql i was realy happy to port my web application
from the nosql datastore to the MySQL instance. I'm a bit used to hibernate,
It won't be a problem with the Low-Level API. It works just fine with
exotic unicode strings.
Your problem is somewhere else in your app, probably somewhere that
you are generating the string or rendering it.
Jeff
On Wed, Dec 28, 2011 at 10:59 AM, Doug douganderson...@gmail.com wrote:
Those
I don't think very many people are using backends... and since a lot
of the support here comes from the community, your question is a
little esoteric.
Try disabling appstats on the backend. Maybe appstats is incompatible
with backends.
Jeff
On Thu, Dec 22, 2011 at 3:53 AM, Rick Mangi
Yeah, if you're doing a delete by previously-known key I would expect
constant time operation. I have no idea what might be causing your
issue, sorry.
Jeff
On Sun, Dec 11, 2011 at 4:26 PM, Michael michael.ol...@gmail.com wrote:
By what you wrote, I assume you're referring to the query speed,
I haven't looked too closely at your problem, but one thing that has come
up before on this list is that it's a bad idea to do things like this:
repeat {
delete N items;
}
Basically, deleting items just flags them as deleted in the underlying
store. They are vacuumed up later. So if you
On Thu, Dec 8, 2011 at 5:11 AM, datanucleus andy_jeffer...@yahoo.comwrote:
Well, it sounds so. But does (or can/will) Datanucleus support at least
some of the features Jeff has mentioned?
Yes, several actually. And nothing is dog slow, ... though why dogs
get such a bad reputation I've no
On Thu, Dec 8, 2011 at 10:32 AM, Jeff Schnitzer j...@infohazard.org wrote:
I'm sorry, but you clearly haven't actually used this cache in the real
world. I've looked at DataNucleus' Level2Cache interface and noticed that
it serializes requests entity-by-entity. This means that every single
On Wed, Dec 7, 2011 at 7:03 AM, datanucleus andy_jeffer...@yahoo.comwrote:
*Does anybody know whether it's as simpletransparent as with Objectify
to
use GAE's caching in JPA2Datanucleus on GAE?*
Assuming you're using v2 of the datanucleus-appengine plugin, just
define the persistence
Alfred made this comment, which sheds a lot of light on it:
On Sat, Nov 19, 2011 at 8:56 PM, Alfred Fuller
arfuller+appeng...@google.com wrote:
if you set chunkSize and not prefetchSize every call will try to return
chuckSize results (even the first call)
if you set prefetchSize and
My favored stack right now:
Objectify (I'm the lead developer, so this one was easy)
Resteasy + Htmleasy + Guice, tightly integrated
Cambridge templates (with JEXL)
Coffeescript + jQuery + Handlebars.js on the frontend
Heavy use of Jackson to jsonify objects, including embedded in the page
html
Occasionally eclipse gets stupid like this. Some combination of Project
Clean, closing/opening the project, and closing/opening eclipse eventually
sets it right.
Jeff
On Sat, Nov 19, 2011 at 10:23 PM, Mauricio Porras P
mauricio.porra...@gmail.com wrote:
I'm having this same issue, did you
Look at the source code. BlobInfoFactory only has one piece of member
data, a DatastoreService. So if DS is thread-safe, so is BIF. I don't
know if DS is thread-safe though.
Jeff
On Sat, Nov 19, 2011 at 9:20 AM, Marcel Overdijk
marceloverd...@gmail.comwrote:
Is BlobInfoFactory thread safe?
Would someone explain the exact differences between prefetchSize and
chunkSize and how these interact? The documentation doesn't really help.
I presume chunkSize is the number of items that get fetched on each RPC to
the datastore backend, equivalent to a fetch() call in python-land. Is
This is going to sound really weird but I've had issues like this before
and switching browsers seemed to fix it. Try Firefox.
Jeff
On Tue, Nov 15, 2011 at 2:49 PM, MH zvi.schrei...@gmail.com wrote:
Hi there. I am trying to add a custom domain from the GAE Application
Settings.
It
On Tue, Nov 15, 2011 at 10:30 PM, Gerald Tan woefulwab...@gmail.com wrote:
Only Serializable objects can be used as properties, and Cipher isn't
serializable. The solution is to store the algorithm as a String, then
reinstantiating the Cipher from the algorithm string after retrieving it
from
I've used many different Java templating systems over the years and been
terribly disappointed with all of them... until recently. I started using
Cambridge Templates:
http://code.google.com/p/cambridge/
Here's a good intro document:
http://blog.erdincyilmazel.com/
The docs are a little rough
On Fri, Nov 4, 2011 at 3:56 PM, Ikai Lan (Google) ika...@google.com wrote:
If all 4000 entites are in a single entity group, in theory you can do this
because it counts as a single transactional write. There's a maximum RPC
size of 11mb (implementation detail) so if you trip this, you're in
FWIW you can declare a field @Embedded MapString, anything in
Objectify and this will create a series of native properties in the
low level entity. Ie:
class MyEntity {
@Id Long id;
@Embedded MapString, Long strings;
}
If the map contained { prop1 : 12 } then you could filter by:
There's this:
https://groups.google.com/d/msg/google-appengine/NdUAY0crVjg/3fJX3Gn3cOYJ
Some thoughts:
* I don't think there's really anything to save you from eventuality
except careful consideration during the design of your data model. Pick
your entity groups carefully and use XG
You shouldn't see any significant performance difference between the various
java datastore APIs during normal operation. The JDO's classpath scanning
may have a significant startup cost, but during execution the costs of RPCs
and protocol buffer manipulation tend to dominate over any
Wild guess:
If you load an entity in JDO and set a property to be exactly what it was
before, this won't actually flag the entity as dirty. It won't be written
when you commit the session. I don't know how you would force a write
using JDO.
Jeff
On Thu, Oct 13, 2011 at 6:23 AM, markabrucey
The local dev database frequently gets invalidated at SDK upgrades. It
should not be considered a reliable store.
No data is trashed in the production database.
Jeff
On Fri, Oct 21, 2011 at 10:28 AM, Tommy Fannon tfan...@gmail.com wrote:
It seems to need to be deleted and re-created.
I
Implicit transactions are a separate issue (and a terrible idea).
When the low-level api starts a transaction, it stores this txn as a thread
local. The get()/put()/etc methods that don't have a transaction are
effectively this logic:
Entity get(Key key) {
if (there is a thread local txn)
Ugh. Is this a correct further paraphrase?
* You wanted users to get exceptions which would force them to go to
the manual to figure out why they are getting exceptions.
There are less intrusive ways to force users into reading the manual!
I really hate software like this; it's a bozo bit that
On Tue, Oct 18, 2011 at 9:07 AM, David Gay (Google) d...@google.com wrote:
One other consideration: XG transactions do not work on master/slave.
While the default could be different depending on whether HRD is used,
that definitely has drawbacks.
How can I detect if running on HRD vs M/S? I
/DatastoreService.java#388
On Tue, Oct 18, 2011 at 2:02 PM, Jeff Schnitzer j...@infohazard.org wrote:
Dunno about production, but the developer mode takes issue with it.
Even a simple single-entity transaction commit fails in M/S mode with
the test harness - ie, without calling this method
On Mon, Oct 17, 2011 at 9:38 AM, David Gay (Google) d...@google.com wrote:
Just enable it for the whole app: an XG transaction that touches only
a single entity group has exactly the same performance as a non-XG
transaction.
In that case, why is this a configurable setting?
Jeff
--
You
Facebook recently (as in, a couple weeks ago) made it possible to
associate multiple domains with your application. Add
my-appid.appspot.com as well as aggenda.com.
Jeff
On Thu, Oct 13, 2011 at 3:09 AM, marco marco.m.al...@gmail.com wrote:
Hi guys. (i'm newbie)
I'm trying to make an existing
It's in the Basic Info section in the upper part of the page (which
you scrolled past). Look for App Domain - you can put multiple
entries there.
Jeff
On Thu, Oct 13, 2011 at 4:01 AM, marco marco.m.al...@gmail.com wrote:
Hi Jeff. Thanks for the quick reply.
I'm looking in Apps Aggenda Basic
Are you typing in a field called App Domain? It lets you type in
multiple domains, one next to the other.
Jeff
On Thu, Oct 13, 2011 at 4:39 PM, marco marco.m.al...@gmail.com wrote:
Hi Jeff.
I've tried out what you suggest but it gives an error:
my-app-id.appspot.com must be derived from your
It really isn't a big deal. Store two floats if you want. The
reasons I use GeoPt a lot:
* GeoPt shows up nicely in the datastore viewer
* You can store arrays of GeoPt
* The storage cost should be slightly less than two floats because
there is metadata only for one field.
* Maybe some day
Keep in mind you only get 10 versions, so you'll have to delete old
ones as you add new ones. I don't see any way to automate that.
Jeff
On Tue, Oct 4, 2011 at 2:09 AM, Manilal libreg...@gmail.com wrote:
I'm using the commandline version of appcfg command to deploy Java
application. I would
That doesn't sound right. You should have no trouble POSTing 20k to
GAE. I wouldn't be surprised if GETs choked though.
Jeff
On Tue, Oct 4, 2011 at 9:47 AM, Gerald Tan woefulwab...@gmail.com wrote:
You'll have to use the Blobstore API and allow the user to upload the xml
into the blobstore
On Mon, Oct 3, 2011 at 9:24 AM, Mat Jaggard matjagg...@gmail.com wrote:
Jeff - I'm a bit confused. I thought that the whole idea of the
datastore was that you could read or write as much as you want, as
fast as you want as long as they are not related? So one datastore
write per vote (and
Assuming the goal is massive write throughput, you don't want to do 1
write per vote. You need to aggregate writes into a batch - you can
do that with pull queues, but then you're limited to the maximum
throughput of a pull queue. And the biggest batch size is 1,000
which might actually be
It's hard to say here if we're talking about the same thing, but
here's how I would do it:
* Updates go through to the backend, which stores write deltas in ram
(not the total).
* Reads read-through memcache into the datastore.
* The backend writes deltas to the datastore in batch, updating
A month or so ago Google posted a request for trusted testers for this
feature. It helps to read the mailing lists :-)
Jeff
On Thu, Sep 29, 2011 at 2:05 AM, Cyrille Vincey cvin...@qunb.com wrote:
SERIOUSLY???
(why don't you give any visibility on this key feature, like you did
with FTS?)
Have you looked into using pull queues combined with sharded counters?
If you lease 1,000 tasks at a time you can probably condense writes
considerably. There are several different sharding strategies you
could take, even just one master set of shards each of which covers
all items. 100 shards
Yeah, messy.
I'd use a backend for this. Possibly a set of backends if you need to
shard the data for write volume. I'd use Memcache only to cache the
count reads.
The basic entity is just an id and a count. An increment request goes
to a backend, which simply tracks the change. A batch
Amazon does something like this for its excess capacity:
http://aws.amazon.com/ec2/spot-instances/
...but it's just for excess capacity. I wouldn't want this kind of
behavior for my core usage because it would make my bill highly
unpredictable. And it does not incentivize Google to add more
Specifically, it's the difference between calling Entity.setProperty()
or Entity.setUnindexedProperty() on the low level API.
Objectify interacts with the datastore through the low level API, so
there is always underlying support for features. Not necessarily in a
convenient form, however.
Jeff
I'm pretty happy with Resteasy:
http://www.jboss.org/resteasy
There was a minor trick to getting Guice integrated nicely (see my
recent post on the resteasy-developers list). Other than that it
works great, and you can use it to render HTML pages with a little
extension:
On Fri, Aug 5, 2011 at 11:45 AM, William Levesque
billleves...@gmail.com wrote:
But is Google's position that all data should be denormalized?
I don't think anyone would say that. I wrote up my thoughts around
this subject here:
It's actually much simpler than you realize. Assuming that your ListLong
is an indexed property named 'friends', you just need to filter entities for
'friends' equal to your id.
This is how list indexes work - if you filter on the property, the entity
matches if any value in the list matches the
Shrug. Given that any domain chosen cannot have google as part of it (G
doesn't want to convey any kind of public endorsement of our applications),
appspot seems about as good as any. Sure cloud.com would be nice but I'm
pretty sure the people already using cloud.com have other ideas on the
On Thu, Jul 14, 2011 at 10:59 PM, George Moschovitis
george.moschovi...@gmail.com wrote:
Thanks for the release, but why don't you use Future?
The Future? interface is fundamentally defective because it uses checked
exceptions.
Checked exceptions are one of the handful of gross design flaws
The public/private/protected/package status of java fields is 100%
irrelevant from a security perspective. It's just there to help keep your
code clean. The data is still being passed across the wire in a simple,
easily-decoded protocol that any sniffer can translate.
If you're passing
This is the first time I've announced this opensource project in this forum
because until now there wasn't anything GAE-specific about it. You can
still use BatchFB outside of GAE, but now BatchFB will use asynchronous
fetching on App Engine to issue multiple batches to Facebook in parallel.
If you're just looking for an MVC framework, here are two that I wrote:
Tagonist: http://www.tagonist.org/
This is about as simple as it can possibly get. Less than 500 lines
of code, no classpath scanning, zero (as in nada, none, zip) effect on
startup time. It just plays clever with JSP.
Google geocoding.
Jeff
On Wed, Jul 6, 2011 at 10:14 AM, oceandrive rams...@gmail.com wrote:
Can anyone tell me if there is a way to get latitude/longitude values for a
given address
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java
On Wed, Jul 6, 2011 at 11:50 AM, jMotta jayrmo...@gmail.com wrote:
Jamie,
I don't know if get it right, but if it's part of the key it is not
possible to change.
It sounds like the id is being stored as a field/property of an entity -
it's basically a foreign key.
If this property is not
This is an interesting issue. Hopefully someone at Google has considered
this when making changes to the scheduler.
Instance death after 9k requests is a known behavior of GAE (well, known
if you read these forums - I don't think there is any official
documentation). As a wild guess on my part,
I think John has the right idea... but since you probably don't need
dynamic form fields, I would probably do it like this:
class MyEntity {
@Id String uid;
@Embedded FormField field1;
@Embedded FormField field2;
...etc
}
(No doubt for Twig you just substitute @Embed for Objectify's
That's what I tend to do. Since I write consumer apps, passing my raw
entities across the wire usually isn't an option in the first place -
there's usually too much security-sensitive stuff, or at the very
least data I would rather not disclose to a potential attacker.
Also... using entities
To be honest, whenever I start to have a less-than-perfect match
between my entities and the content rendered in my client, I usually
create DTOs. It's mildly annoying, but it results in a clean
interface without a lot of extra payload (some of which might be
security-sensitive) sent across the
The problem with using the Channel API this way is not quota usage, it's the
rather significant amount of work required on the client server to make
this work.
Making an ajax call from client javascript is trivial. Making an ajax call
PLUS setting up, tearing down, and processing messages from
Sounds like you could just keep it around for 30 minutes or an hour,
refreshing it after it expires.
What would be nice is to be able to perform the refresh asynchronously. Say
it takes 5s to build a piece of data that every appserver uses for
practically every request. Instead of relying on
One case is when you need to save several different entities that all
reference each other. Let's say A has a reference to B, and B has a
reference to A. If you relied on key autogeneration you would need 3 puts:
* Put A (which initializes the id)
* Set B.a to the id of A, put B
* Set A.b to
On Thu, Jun 9, 2011 at 10:17 AM, Jeff Schnitzer j...@infohazard.org wrote:
Thank you for fixing the benchmark.
I am very curious. According to this new benchmark - it's hard to
tell without pushing the buttons a lot of times, but there seems to be
a trend - Slim3 is somewhat faster than
://slim3demo.appspot.com/performance/
As a result, LL is as fast as slim3 (^^;
Yasuo Higa
On Thu, Jun 9, 2011 at 10:17 AM, Jeff Schnitzer j...@infohazard.org wrote:
Thank you for fixing the benchmark.
I am very curious. According to this new benchmark - it's hard to
tell without pushing
On Thu, Jun 9, 2011 at 1:32 AM, Gal Dolber gal.dol...@gmail.com wrote:
I am not comparing reflexion vs byte-code generation or anything like that,
apt generates code, is not a runtime technology.
Like or not reflexion is known to be slower than actually writing the code.
This is entirely
in the
SDK and submit a patch.
Jeff
On Thu, Jun 9, 2011 at 5:16 AM, Jeff Schnitzer j...@infohazard.org wrote:
Ok - so what you're saying is that the extra call to list.size()
before iterating through the list makes list iteration faster? Oddly
enough, this does seem to make a difference
/Harry_Potter_and_the_Methods_of_Rationality
Until Google makes a change, maybe the other frameworks should try the
same trick?
On Thu, Jun 9, 2011 at 8:31 AM, Jeff Schnitzer j...@infohazard.org
wrote:
On Thu, Jun 9, 2011 at 1:32 AM, Gal Dolber gal.dol...@gmail.com wrote:
I am not comparing
On Tue, Jun 7, 2011 at 11:07 PM, Giorgio Riccardi giorgio...@gmail.com wrote:
Hi Jeff,
1) Polishing the navigation, as you said, it kind thought with GWT,
but I absolutely agree with you that it needs to be improved...
already some changes have been done, but going back at the same
position
the most confusing ...
Ikai Lan
Developer Programs Engineer, Google App Engine
Blog: http://googleappengine.blogspot.com
Twitter: http://twitter.com/app_engine
Reddit: http://www.reddit.com/r/appengine
On Wed, Jun 8, 2011 at 1:50 PM, Jeff Schnitzer j...@infohazard.org wrote
You are wrong.
Try adding getProperty() calls to your LL performance test, and the
speed advantage of the LL API goes away. I don't know what to say
about Slim3, but here's my test case:
http://code.google.com/p/scratchmonkey/source/browse/#svn%2Fappengine%2Fperformance-test
I created 10,000
Unfortunately GAE does not support Servlet 3.0.
Please star: http://code.google.com/p/googleappengine/issues/detail?id=3091
Jeff
On Wed, Jun 8, 2011 at 11:45 AM, Marcel Overdijk
marceloverd...@gmail.com wrote:
Does AppEngine support Servlet 3.0 ServletContainerInitializer for
code-based
, Gal Dolber gal.dol...@gmail.com wrote:
Slim3 is not only fast, the api is completely awesome. It has been my choice
for a year now for all gae projects.
It includes name safety and and amazing querying utils.
Very recommendable!
On Wed, Jun 8, 2011 at 3:41 PM, Jeff Schnitzer j...@infohazard.org
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