[Lift] Re: JPA and Record
I know what you mean, I have the same feelings about it. Spring can be
a big mess (it's pretty certainly making a mess of your classpath with
all those deps). On the other hand, I just tried to find out how big a
mess it actually would be. It's substantial but not frightening IMO.
Adding the spring dependencies (only the relevant ones) is adding
almost the same as the hibernate.jar alone.
aopalliance-1.0.jar
commons-logging-1.1.1.jar
spring-beans-2.5.6.jar
spring-context-2.5.6.jar
spring-core-2.5.6.jar
spring-orm-2.5.6.jar
spring-tx-2.5.6.jar
~= 1.8M
hibernate-3.2.6.ga.jar
~= 2.2M
I didn't include annotations and EM on the hibernate side, they add
together something like 200k, and I might have missed something on the
spring side (the rest of the deps are optional, some might be needed
though).
Not really arguing here, just trying to not get into FUD.
Daniel
PS: I just did that with downloading from the maven repo directly, but
if you have a working project you want to inspect the jars from: get
the executed commandline somehow, split in vi with :%s/:/^M/
g (that's CTRL-V CTRL-M), save to cp.txt, then cp `grep spring
cp.txt` . or whatever you like (du `grep spring cp.txt` | sort -
nr). Nice way to check your classpath.
On Dec 16, 5:32 am, Derek Chen-Becker dchenbec...@gmail.com wrote:
That may be workable but I have to recoil a little when we talk about
bringing Spring into the mix. It has its purpose but I would hate to make it
an implicit requirement of using Record with JPA; it's just huge.
Derek
On Mon, Dec 15, 2008 at 12:46 PM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
I never did it with JPA, that's why I mentioned that there might be
some problems to circumnavigate (my websearch turned up that it's not
possible, but I might have missed something). But on the actual
backend frameworks you can do things like that (or at least hibernate
can [1,2, also see 3 below]).
The best resource to describe what we want to do is Spring ORM [3].
They had the same problem and describe the caveats with it (see the
text box for loadtime weaving under the JPA section). If we would run
our generation through Spring ORM we should probably get away with a
Record-only setup, where Record boots Spring ORM with dynamic classes
(Maps) and configures the desired backend. The nice thing would be
that Spring is already aware of which backend you use and optimizes
accordingly.
I don't really like the fact that this adds a truckload of
dependencies to the stack (spring-{orm,beans,context,core,tx} are
required, couple more optional), but it's the easiest solution I can
think of in terms of integration and timerequirements, and it should
also be pretty stable and straightforward to use for the users (Spring
has nice documentation IMO). Oh, and just if you were wondering, this
is the supported frameworks list: Hibernate, JDO, Oracle TopLink,
iBATIS SQL Maps and JPA. The biggies are supported without even going
through JPA. Sweet.
Daniel
[1]http://forums.oracle.com/forums/message.jspa?messageID=2432779
[2]http://wiki.eclipse.org/Eclipselink/Examples/JPA/Dynamic
[3]http://static.springframework.org/spring/docs/2.5.x/reference/orm.html
On Dec 15, 9:41 pm, Derek Chen-Becker dchenbec...@gmail.com wrote:
I've been thinking a little about the XML path and there may be a
wrinkle.
No matter how you define the XML mappings, JPA expects persistable fields
to
either be real fields (var) on the instance or getter/setter pairs; using
an
object for field a la Record still isn't either of these. I have a busy
few
weeks ahead but I'm going to do some reading in the meantime and see if
we
can come up with something transparent but easy to use.
Derek
On Mon, Dec 15, 2008 at 12:39 AM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
(Reactivating discussion. I guess it's been discussed more on the
committer list, but here you have my 2 cents anyway)
For the sake of the Record-JPA discussion, people will fall into two
categories when they are using lift:
* The first group of people have an existing, working, tested JPA/OR
based data access library written in Java and are looking to integrate
that with a webapp written in lift. They will usually be coming from
an enterprise background, and will have some constraints on what they
can develop from scratch (no - we will not rewrite all the db access
code to support the new web framework).
* The second group doesn't have an existing data access library in
Java and would like to write all their new stuff with lift in Scala.
But maybe they have mapping/usage requirements that precludes using
mapper because it's too simple, or they just know their way around one
of the other JPA enabled OR libs and want to bank on that knowledge
(without writing the entire layer in Java).
* The third group also doesn't have an existing data
[Lift] Re: maven problem - can't make ToDo example work - or even get off the ground.
Unless you say otherwise, I'm assuming you guys are going to make the
changes in the boot and other files that have caused these
difficulties as part of your fixes.
On Dec 14, 8:25 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
Mike,
There was a recent breaking change to Lift (Marius and I are doing major
code cleanup and this means lots of breaks to the APIs... this will all end
by the end of the month.)
Any of the LiftRules stuff that contains append/prepend has a new form:
LiftRules.appendEarly(makeUtf8)
becomes:
LiftRules.early.append(makeUtf8)
Thanks,
David
On Sun, Dec 14, 2008 at 5:09 PM, mike beckerle mbecke...@gmail.com wrote:
Certainly there is nothing blocking java in any way.
However, just trying again, this time it is working better. Somebody
has fixed something on the server end I'm sure. I'm doing the exact
same thing, but it seems to be able to communicate properly with the
associated servers..
However, mvn jetty:run -U still fails
Downloading:
http://scala-tools.org/repo-snapshots/net/liftweb/lift-widgets/0.10-S...
243Khttp://scala-tools.org/repo-snapshots/net/liftweb/lift-widgets/0.10-S...downloaded
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [scala:compile {execution: default}]
[INFO] suggestion: remove the scalaVersion from pom.xml
[ERROR] /home/mbeckerle/todo/src/main/scala
[INFO] Compiling 3 source files to /home/mbeckerle/todo/target/classes
Downloading:
http://scala-tools.org/repo-releases/org/scala-lang/scala-compiler/2
6083Khttp://scala-tools.org/repo-releases/org/scala-lang/scala-compiler/2downloaded
[WARNING] /home/mbeckerle/todo/src/main/scala/bootstrap/liftweb/
Boot.scala:42: error: value appendEarly is not a member of object
net.liftweb.http.LiftRules
[WARNING] LiftRules.appendEarly(makeUtf8)
[WARNING] ^
[WARNING] one error found
[INFO]
[ERROR] BUILD FAILURE
[INFO] --
On Dec 14, 2:11 pm, Josh Suereth joshua.suer...@gmail.com wrote:
Is your firewall blocking java? This would cause maven to be unable
to download dependencies.
Sent from my iPhone
On Dec 14, 2008, at 1:13 PM, mike beckerle mbecke...@gmail.com wrote:
I can browse to the location just fine. There is no proxy or other
wierdness between me and the internet. Just the usual home firewall
(NAT) device.
On Dec 13, 1:45 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Sat, Dec 13, 2008 at 10:34 AM, mike beckerle
mbecke...@gmail.com wrote:
This did not work. Still failed.
There are disturbing messages in here about blacklisting sites due
to
errors and such.
becke...@ubuntu810desktop:~/todo$ mvn jetty:run -U
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'jetty'.
[INFO] org.apache.maven.plugins: checking for updates from scala-
tools.org
[WARNING] repository metadata for: 'org.apache.maven.plugins' could
not be retrieved from repository: scala-tools.org due to an error:
Error transferring file
[INFO] Repository 'scala-tools.org' will be blacklisted
This is the problem. For some reason, you're not able to connect to
scala-tools.org.
Are you behind an HTTP proxy?
Does the proxy have whitelist/blacklist of sites and/or IP addresses?
Can you browse tohttp://scala-tools.org/repo-snapshots/net/liftweb/
with
your web browser?
[INFO] org.apache.maven.plugins: checking for updates from central
[INFO] org.codehaus.mojo: checking for updates from central
[INFO] artifact org.scala-tools:maven-scala-plugin: checking for
updates from central
[INFO]
---
---
--
[ERROR] BUILD ERROR
[INFO]
---
---
--
[INFO] The plugin 'org.scala-tools:maven-scala-plugin' does not
exist
or no valid version could be found
[INFO]
---
---
--
[INFO] For more information, run Maven with the -e switch
[INFO]
---
---
--
[INFO] Total time: 26 seconds
[INFO] Finished at: Sat Dec 13 13:29:24 EST 2008
[INFO] Final Memory: 1M/4M
[INFO]
---
---
--
mbecke...@ubuntu810desktop:~/todo$
On Dec 11, 7:57 am, David Bernard david.bernard...@gmail.com
wrote:
The first time you run jetty :
mvn jetty:run -U
I learn a way to avoid this problem (for futur archetype, I'll
try it
next week-end)
/davidB
On Thu, Dec 11, 2008 at 13:31, Josh Suereth
[Lift] Re: maven problem - can't make ToDo example work - or even get off the ground.
On Tue, Dec 16, 2008 at 8:05 AM, mike beckerle mbecke...@gmail.com wrote:
Unless you say otherwise, I'm assuming you guys are going to make the
changes in the boot and other files that have caused these
difficulties as part of your fixes.
The changes are made in the Archetypes and any new projects created will
include the fixes. For any existing projects, you have to manually make the
changes.
For the next 2-3 weeks, it's important to watch the mailing list for
messages titled *Breaking Changes* as these will likely impact you.
On the other hand, we expect to have Lift 1.0-RC1 out on Jan 2, 2009 and the
break changes will be extremely rare.
On Dec 14, 8:25 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
Mike,
There was a recent breaking change to Lift (Marius and I are doing major
code cleanup and this means lots of breaks to the APIs... this will all
end
by the end of the month.)
Any of the LiftRules stuff that contains append/prepend has a new form:
LiftRules.appendEarly(makeUtf8)
becomes:
LiftRules.early.append(makeUtf8)
Thanks,
David
On Sun, Dec 14, 2008 at 5:09 PM, mike beckerle mbecke...@gmail.com
wrote:
Certainly there is nothing blocking java in any way.
However, just trying again, this time it is working better. Somebody
has fixed something on the server end I'm sure. I'm doing the exact
same thing, but it seems to be able to communicate properly with the
associated servers..
However, mvn jetty:run -U still fails
Downloading:
http://scala-tools.org/repo-snapshots/net/liftweb/lift-widgets/0.10-S.
..
243K
http://scala-tools.org/repo-snapshots/net/liftweb/lift-widgets/0.10-S..
.downloaded
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [scala:compile {execution: default}]
[INFO] suggestion: remove the scalaVersion from pom.xml
[ERROR] /home/mbeckerle/todo/src/main/scala
[INFO] Compiling 3 source files to /home/mbeckerle/todo/target/classes
Downloading:
http://scala-tools.org/repo-releases/org/scala-lang/scala-compiler/2..
..
6083K
http://scala-tools.org/repo-releases/org/scala-lang/scala-compiler/2...
.downloaded
[WARNING] /home/mbeckerle/todo/src/main/scala/bootstrap/liftweb/
Boot.scala:42: error: value appendEarly is not a member of object
net.liftweb.http.LiftRules
[WARNING] LiftRules.appendEarly(makeUtf8)
[WARNING] ^
[WARNING] one error found
[INFO]
[ERROR] BUILD FAILURE
[INFO] --
On Dec 14, 2:11 pm, Josh Suereth joshua.suer...@gmail.com wrote:
Is your firewall blocking java? This would cause maven to be unable
to download dependencies.
Sent from my iPhone
On Dec 14, 2008, at 1:13 PM, mike beckerle mbecke...@gmail.com
wrote:
I can browse to the location just fine. There is no proxy or other
wierdness between me and the internet. Just the usual home firewall
(NAT) device.
On Dec 13, 1:45 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Sat, Dec 13, 2008 at 10:34 AM, mike beckerle
mbecke...@gmail.com wrote:
This did not work. Still failed.
There are disturbing messages in here about blacklisting sites
due
to
errors and such.
becke...@ubuntu810desktop:~/todo$ mvn jetty:run -U
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'jetty'.
[INFO] org.apache.maven.plugins: checking for updates from scala-
tools.org
[WARNING] repository metadata for: 'org.apache.maven.plugins'
could
not be retrieved from repository: scala-tools.org due to an
error:
Error transferring file
[INFO] Repository 'scala-tools.org' will be blacklisted
This is the problem. For some reason, you're not able to connect
to
scala-tools.org.
Are you behind an HTTP proxy?
Does the proxy have whitelist/blacklist of sites and/or IP
addresses?
Can you browse tohttp://
scala-tools.org/repo-snapshots/net/liftweb/
with
your web browser?
[INFO] org.apache.maven.plugins: checking for updates from
central
[INFO] org.codehaus.mojo: checking for updates from central
[INFO] artifact org.scala-tools:maven-scala-plugin: checking for
updates from central
[INFO]
---
---
--
[ERROR] BUILD ERROR
[INFO]
---
---
--
[INFO] The plugin 'org.scala-tools:maven-scala-plugin' does not
exist
or no valid version could be found
[INFO]
---
---
--
[INFO] For more information, run Maven with the -e switch
[INFO]
---
---
[Lift] Re: JPA and Record
Don't get me wrong, I've used Spring before to great benefit. My biggest
concern is that it uses commons-logging, which complicates logging config a
bit.It also expands the POM via those dependencies. Bottom line: I'd like to
avoid it if we can, but I don't have a problem if it ends up being the best
way to do it.
Derek
On Mon, Dec 15, 2008 at 10:08 PM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
I know what you mean, I have the same feelings about it. Spring can be
a big mess (it's pretty certainly making a mess of your classpath with
all those deps). On the other hand, I just tried to find out how big a
mess it actually would be. It's substantial but not frightening IMO.
Adding the spring dependencies (only the relevant ones) is adding
almost the same as the hibernate.jar alone.
aopalliance-1.0.jar
commons-logging-1.1.1.jar
spring-beans-2.5.6.jar
spring-context-2.5.6.jar
spring-core-2.5.6.jar
spring-orm-2.5.6.jar
spring-tx-2.5.6.jar
~= 1.8M
hibernate-3.2.6.ga.jar
~= 2.2M
I didn't include annotations and EM on the hibernate side, they add
together something like 200k, and I might have missed something on the
spring side (the rest of the deps are optional, some might be needed
though).
Not really arguing here, just trying to not get into FUD.
Daniel
PS: I just did that with downloading from the maven repo directly, but
if you have a working project you want to inspect the jars from: get
the executed commandline somehow, split in vi with :%s/:/^M/
g (that's CTRL-V CTRL-M), save to cp.txt, then cp `grep spring
cp.txt` . or whatever you like (du `grep spring cp.txt` | sort -
nr). Nice way to check your classpath.
On Dec 16, 5:32 am, Derek Chen-Becker dchenbec...@gmail.com wrote:
That may be workable but I have to recoil a little when we talk about
bringing Spring into the mix. It has its purpose but I would hate to make
it
an implicit requirement of using Record with JPA; it's just huge.
Derek
On Mon, Dec 15, 2008 at 12:46 PM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
I never did it with JPA, that's why I mentioned that there might be
some problems to circumnavigate (my websearch turned up that it's not
possible, but I might have missed something). But on the actual
backend frameworks you can do things like that (or at least hibernate
can [1,2, also see 3 below]).
The best resource to describe what we want to do is Spring ORM [3].
They had the same problem and describe the caveats with it (see the
text box for loadtime weaving under the JPA section). If we would run
our generation through Spring ORM we should probably get away with a
Record-only setup, where Record boots Spring ORM with dynamic classes
(Maps) and configures the desired backend. The nice thing would be
that Spring is already aware of which backend you use and optimizes
accordingly.
I don't really like the fact that this adds a truckload of
dependencies to the stack (spring-{orm,beans,context,core,tx} are
required, couple more optional), but it's the easiest solution I can
think of in terms of integration and timerequirements, and it should
also be pretty stable and straightforward to use for the users (Spring
has nice documentation IMO). Oh, and just if you were wondering, this
is the supported frameworks list: Hibernate, JDO, Oracle TopLink,
iBATIS SQL Maps and JPA. The biggies are supported without even going
through JPA. Sweet.
Daniel
[1]http://forums.oracle.com/forums/message.jspa?messageID=2432779
[2]http://wiki.eclipse.org/Eclipselink/Examples/JPA/Dynamic
[3]
http://static.springframework.org/spring/docs/2.5.x/reference/orm.html
On Dec 15, 9:41 pm, Derek Chen-Becker dchenbec...@gmail.com wrote:
I've been thinking a little about the XML path and there may be a
wrinkle.
No matter how you define the XML mappings, JPA expects persistable
fields
to
either be real fields (var) on the instance or getter/setter pairs;
using
an
object for field a la Record still isn't either of these. I have a
busy
few
weeks ahead but I'm going to do some reading in the meantime and see
if
we
can come up with something transparent but easy to use.
Derek
On Mon, Dec 15, 2008 at 12:39 AM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
(Reactivating discussion. I guess it's been discussed more on the
committer list, but here you have my 2 cents anyway)
For the sake of the Record-JPA discussion, people will fall into
two
categories when they are using lift:
* The first group of people have an existing, working, tested
JPA/OR
based data access library written in Java and are looking to
integrate
that with a webapp written in lift. They will usually be coming
from
an enterprise background, and will have some constraints on what
they
can develop from scratch (no - we will not rewrite all the db
[Lift] Re: error message tag
On 16/12/2008, at 3:30 PM, Charles F. Munat wrote: I copied and pasted the error message code into my own error message utility and then changed the blank output to Text(). I also wanted to rewrite other parts of it. Im trying to get a html programmer to come up with a css fix before I put in my own fix, but its certainly a option to use, if necessary. It seems there is always a trade-off between convenience and configuration. My coding style is very different from David's (at least where HTML is concerned), so I find myself rewriting (modifying, really) lots of stuff to make it work the way I need it to. But it sure saves time to have a base of code to modify, rather than having to write it all from scratch. I've been guilty of modifying a few things myself, so I certainly understand where you are coming from here. It makes me wonder how many lifters are working with an unadulterated version of the code-base. My own code style is also probably different from others and is likely going to diverge as I have a mentor pushing me to adopt a much more functional/immutable style of programming. Chas. Oliver wrote: I have the following to output an error message against lift:msg id=errMsg type=msgs/ When I have an error its all fine, but when I don't have an error I get the following html span id=errMsg/ Is there any way of getting rid of the empty span? cheers Oliver --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: maven problem - can't make ToDo example work - or even get off the ground.
To avoid the breaking changes for the time being, I just downloaded
the latest 'todo.tgz' today from here:
http://groups.google.com/group/liftweb/t/4b305ab81019df3a
and did:
mvn jetty:run
For the moment I'll just run Maven *offline* from now on, eg:
mvn -o jetty:run
so it won't grab any changes (which might be breaking changes) off the
web.
This way, if I make a change to my code and it breaks, I can be 100%
certain it was because of my change and not someone else's.
I also made a backup copy of the directory containing my local Maven
2.0.9 repository:
~/.m2
(eg, on Windows XP the home directory ~ is C:\Documents and Settings
\MyWindowsLoginID)
so if I accidentally run maven *online* and it overwrites stuff in
this directory, I can just restore it by copying in Windows.
I'm not sure if using Maven offline like this is recommended - it's
just my approach.
On Dec 16, 2:49 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Tue, Dec 16, 2008 at 8:05 AM, mike beckerle mbecke...@gmail.com wrote:
Unless you say otherwise, I'm assuming you guys are going to make the
changes in the boot and other files that have caused these
difficulties as part of your fixes.
The changes are made in the Archetypes and any new projects created will
include the fixes. For any existing projects, you have to manually make the
changes.
For the next 2-3 weeks, it's important to watch the mailing list for
messages titled *Breaking Changes* as these will likely impact you.
On the other hand, we expect to have Lift 1.0-RC1 out on Jan 2, 2009 and the
break changes will be extremely rare.
On Dec 14, 8:25 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
Mike,
There was a recent breaking change to Lift (Marius and I are doing major
code cleanup and this means lots of breaks to the APIs... this will all
end
by the end of the month.)
Any of the LiftRules stuff that contains append/prepend has a new form:
LiftRules.appendEarly(makeUtf8)
becomes:
LiftRules.early.append(makeUtf8)
Thanks,
David
On Sun, Dec 14, 2008 at 5:09 PM, mike beckerle mbecke...@gmail.com
wrote:
Certainly there is nothing blocking java in any way.
However, just trying again, this time it is working better. Somebody
has fixed something on the server end I'm sure. I'm doing the exact
same thing, but it seems to be able to communicate properly with the
associated servers..
However, mvn jetty:run -U still fails
Downloading:
http://scala-tools.org/repo-snapshots/net/liftweb/lift-widgets/0.10-S.
..
243K
http://scala-tools.org/repo-snapshots/net/liftweb/lift-widgets/0.10-S..
.downloaded
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [scala:compile {execution: default}]
[INFO] suggestion: remove the scalaVersion from pom.xml
[ERROR] /home/mbeckerle/todo/src/main/scala
[INFO] Compiling 3 source files to /home/mbeckerle/todo/target/classes
Downloading:
http://scala-tools.org/repo-releases/org/scala-lang/scala-compiler/2..
..
6083K
http://scala-tools.org/repo-releases/org/scala-lang/scala-compiler/2...
.downloaded
[WARNING] /home/mbeckerle/todo/src/main/scala/bootstrap/liftweb/
Boot.scala:42: error: value appendEarly is not a member of object
net.liftweb.http.LiftRules
[WARNING] LiftRules.appendEarly(makeUtf8)
[WARNING] ^
[WARNING] one error found
[INFO]
[ERROR] BUILD FAILURE
[INFO] --
On Dec 14, 2:11 pm, Josh Suereth joshua.suer...@gmail.com wrote:
Is your firewall blocking java? This would cause maven to be unable
to download dependencies.
Sent from my iPhone
On Dec 14, 2008, at 1:13 PM, mike beckerle mbecke...@gmail.com
wrote:
I can browse to the location just fine. There is no proxy or other
wierdness between me and the internet. Just the usual home firewall
(NAT) device.
On Dec 13, 1:45 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Sat, Dec 13, 2008 at 10:34 AM, mike beckerle
mbecke...@gmail.com wrote:
This did not work. Still failed.
There are disturbing messages in here about blacklisting sites
due
to
errors and such.
becke...@ubuntu810desktop:~/todo$ mvn jetty:run -U
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'jetty'.
[INFO] org.apache.maven.plugins: checking for updates from scala-
tools.org
[WARNING] repository metadata for: 'org.apache.maven.plugins'
could
not be retrieved from repository: scala-tools.org due to an
error:
Error transferring file
[INFO] Repository 'scala-tools.org' will be blacklisted
This is the problem. For some reason, you're not able to connect
to
[Lift] Re: JPA and Record
Mmh, the commons-logging problem you can neatly circumnavigate with
SLF4J and the appropriate bridges. And I absolutely agree with you,
this is not the preferred solution, nor the one that will win you the
style award, but it's probably the one that you can get up and running
with the least effort and reinventing the wheel portion. Might also be
just an intermediate solution or something that is in a contrib folder
somewhere (same status as your current non-Record JPA efforts
probably).
Aye, anyway, I think we agree on what the advantages and disadvantages
are and can look around for solutions that are neater. If I come up
with something I'll post it.
Daniel
On Dec 16, 9:28 pm, Derek Chen-Becker dchenbec...@gmail.com wrote:
Don't get me wrong, I've used Spring before to great benefit. My biggest
concern is that it uses commons-logging, which complicates logging config a
bit.It also expands the POM via those dependencies. Bottom line: I'd like to
avoid it if we can, but I don't have a problem if it ends up being the best
way to do it.
Derek
On Mon, Dec 15, 2008 at 10:08 PM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
I know what you mean, I have the same feelings about it. Spring can be
a big mess (it's pretty certainly making a mess of your classpath with
all those deps). On the other hand, I just tried to find out how big a
mess it actually would be. It's substantial but not frightening IMO.
Adding the spring dependencies (only the relevant ones) is adding
almost the same as the hibernate.jar alone.
aopalliance-1.0.jar
commons-logging-1.1.1.jar
spring-beans-2.5.6.jar
spring-context-2.5.6.jar
spring-core-2.5.6.jar
spring-orm-2.5.6.jar
spring-tx-2.5.6.jar
~= 1.8M
hibernate-3.2.6.ga.jar
~= 2.2M
I didn't include annotations and EM on the hibernate side, they add
together something like 200k, and I might have missed something on the
spring side (the rest of the deps are optional, some might be needed
though).
Not really arguing here, just trying to not get into FUD.
Daniel
PS: I just did that with downloading from the maven repo directly, but
if you have a working project you want to inspect the jars from: get
the executed commandline somehow, split in vi with :%s/:/^M/
g (that's CTRL-V CTRL-M), save to cp.txt, then cp `grep spring
cp.txt` . or whatever you like (du `grep spring cp.txt` | sort -
nr). Nice way to check your classpath.
On Dec 16, 5:32 am, Derek Chen-Becker dchenbec...@gmail.com wrote:
That may be workable but I have to recoil a little when we talk about
bringing Spring into the mix. It has its purpose but I would hate to make
it
an implicit requirement of using Record with JPA; it's just huge.
Derek
On Mon, Dec 15, 2008 at 12:46 PM, Daniel Mueller
dan.in.a.bot...@gmail.comwrote:
I never did it with JPA, that's why I mentioned that there might be
some problems to circumnavigate (my websearch turned up that it's not
possible, but I might have missed something). But on the actual
backend frameworks you can do things like that (or at least hibernate
can [1,2, also see 3 below]).
The best resource to describe what we want to do is Spring ORM [3].
They had the same problem and describe the caveats with it (see the
text box for loadtime weaving under the JPA section). If we would run
our generation through Spring ORM we should probably get away with a
Record-only setup, where Record boots Spring ORM with dynamic classes
(Maps) and configures the desired backend. The nice thing would be
that Spring is already aware of which backend you use and optimizes
accordingly.
I don't really like the fact that this adds a truckload of
dependencies to the stack (spring-{orm,beans,context,core,tx} are
required, couple more optional), but it's the easiest solution I can
think of in terms of integration and timerequirements, and it should
also be pretty stable and straightforward to use for the users (Spring
has nice documentation IMO). Oh, and just if you were wondering, this
is the supported frameworks list: Hibernate, JDO, Oracle TopLink,
iBATIS SQL Maps and JPA. The biggies are supported without even going
through JPA. Sweet.
Daniel
[1]http://forums.oracle.com/forums/message.jspa?messageID=2432779
[2]http://wiki.eclipse.org/Eclipselink/Examples/JPA/Dynamic
[3]
http://static.springframework.org/spring/docs/2.5.x/reference/orm.html
On Dec 15, 9:41 pm, Derek Chen-Becker dchenbec...@gmail.com wrote:
I've been thinking a little about the XML path and there may be a
wrinkle.
No matter how you define the XML mappings, JPA expects persistable
fields
to
either be real fields (var) on the instance or getter/setter pairs;
using
an
object for field a la Record still isn't either of these. I have a
busy
few
weeks ahead but I'm going to do some reading in the
[Lift] NPE with SHtml.text
Hi, I'm getting a NPE after calling SHtml.text() I'm calling that method from an actor. That's probably the reason for that, I guess. Is there any way to call SHtml methods from actors? java.lang.NullPointerException at net.liftweb.http.S$.addFunctionMap(S.scala:706) at net.liftweb.http.S$.mapFunc(S.scala:911) at net.liftweb.http.S$.mapFunc(S.scala:905) at net.liftweb.http.SHtml$.makeFormElement(SHtml.scala:217) at net.liftweb.http.SHtml$.text(SHtml.scala:231) Thanks, Joachim --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: NPE with SHtml.text
Are you using Lift 0.10-SNAPSHOT or 0.9? If it's 0.10-SNAPSHOT, it should work. If it doesn't, please post sample code and I'll fix the bug. On Tue, Dec 16, 2008 at 12:13 PM, Joachim A. wallaby.po...@googlemail.comwrote: Hi, I'm getting a NPE after calling SHtml.text() I'm calling that method from an actor. That's probably the reason for that, I guess. Is there any way to call SHtml methods from actors? java.lang.NullPointerException at net.liftweb.http.S$.addFunctionMap(S.scala:706) at net.liftweb.http.S$.mapFunc(S.scala:911) at net.liftweb.http.S$.mapFunc(S.scala:905) at net.liftweb.http.SHtml$.makeFormElement(SHtml.scala:217) at net.liftweb.http.SHtml$.text(SHtml.scala:231) Thanks, Joachim -- Lift, the simply functional web framework http://liftweb.net Collaborative Task Management http://much4.us Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Revised to-do tutorial
does anybody know what causes an error like value util is not a
member of package net.liftweb?
when I try to install this, I get the following errors/warnings.
note that I did not use the tar'd zip but used maven and the
instructions in the pdf.
maybe I will try that next.
When I create and run things using archetypeVersion 0.9 (like the
ChoreWheel stub) they seem to work fine. But actually when I tried
to use my older copy of todo, it seems to be broken, now, too.
---Paul O
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/bootstrap/
liftweb/Boot.scala:3: error: value util is not a member of package
net.liftweb
[WARNING] import _root_.net.liftweb.util._
[WARNING] ^
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/bootstrap/
liftweb/Boot.scala:8: error: value mapper is not a member of package
net.liftweb
[WARNING] import _root_.net.liftweb.mapper.{DB, ConnectionManager,
Schemifier, DefaultConnectionIdentifier, ConnectionIdentifier}
[WARNING] ^
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/com/
liftworkshop/model/User.scala:3: error: value mapper is not a member
of package net.liftweb
[WARNING] import _root_.net.liftweb.mapper._
[WARNING] ^
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/com/
liftworkshop/model/User.scala:4: error: value util is not a member of
package net.liftweb
[WARNING] import _root_.net.liftweb.util._
[WARNING] ^
[WARNING] Exception in thread main java.lang.RuntimeException:
malformed Scala signature of Loc at 3992; reference value util of
package liftweb refers to nonexisting symbol.
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler
$UnPickle.errorBadSignature(UnPickler.scala:762)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbol
(UnPickler.scala:172)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readSymbolRef$1.apply(UnPickler.scala:714)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readSymbolRef$1.apply(UnPickler.scala:714)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:
139)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbolRef
(UnPickler.scala:714)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType
(UnPickler.scala:247)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:
139)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef
(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType
(UnPickler.scala:253)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:
139)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef
(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at scala.tools.nsc.symtab.classfile.PickleBuffer.until
(PickleBuffer.scala:127)
[WARNING] at scala.tools.nsc.symtab.classfile.PickleBuffer.until
(PickleBuffer.scala:127)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType
(UnPickler.scala:255)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING]
[Lift] Re: Revised to-do tutorial
Paul,
It looks like the various Lift packages are not up to date in your Maven
repository.
Please do a mvn -U clean install and see if that works any better.
Thanks,
David
On Tue, Dec 16, 2008 at 3:06 PM, Paul O'Rorke p...@ororke.com wrote:
does anybody know what causes an error like value util is not a
member of package net.liftweb?
when I try to install this, I get the following errors/warnings.
note that I did not use the tar'd zip but used maven and the
instructions in the pdf.
maybe I will try that next.
When I create and run things using archetypeVersion 0.9 (like the
ChoreWheel stub) they seem to work fine. But actually when I tried
to use my older copy of todo, it seems to be broken, now, too.
---Paul O
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/bootstrap/
liftweb/Boot.scala:3: error: value util is not a member of package
net.liftweb
[WARNING] import _root_.net.liftweb.util._
[WARNING] ^
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/bootstrap/
liftweb/Boot.scala:8: error: value mapper is not a member of package
net.liftweb
[WARNING] import _root_.net.liftweb.mapper.{DB, ConnectionManager,
Schemifier, DefaultConnectionIdentifier, ConnectionIdentifier}
[WARNING] ^
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/com/
liftworkshop/model/User.scala:3: error: value mapper is not a member
of package net.liftweb
[WARNING] import _root_.net.liftweb.mapper._
[WARNING] ^
[WARNING] /Users/Paul/dev/workspace/todo/src/main/scala/com/
liftworkshop/model/User.scala:4: error: value util is not a member of
package net.liftweb
[WARNING] import _root_.net.liftweb.util._
[WARNING] ^
[WARNING] Exception in thread main java.lang.RuntimeException:
malformed Scala signature of Loc at 3992; reference value util of
package liftweb refers to nonexisting symbol.
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler
$UnPickle.errorBadSignature(UnPickler.scala:762)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbol
(UnPickler.scala:172)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readSymbolRef$1.apply(UnPickler.scala:714)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readSymbolRef$1.apply(UnPickler.scala:714)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:
139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readSymbolRef
(UnPickler.scala:714)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType
(UnPickler.scala:247)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:
139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef
(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readType
(UnPickler.scala:253)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$scala$tools$nsc$symtab$classfile$UnPickler$UnPickle$
$readTypeRef$1.apply(UnPickler.scala:715)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$at(UnPickler.scala:
139)
[WARNING] at
scala.tools.nsc.symtab.classfile.UnPickler$UnPickle.scala
$tools$nsc$symtab$classfile$UnPickler$UnPickle$$readTypeRef
(UnPickler.scala:715)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at scala.tools.nsc.symtab.classfile.UnPickler$UnPickle$
$anonfun$3.apply(UnPickler.scala:255)
[WARNING] at scala.tools.nsc.symtab.classfile.PickleBuffer.until
(PickleBuffer.scala:127)
[WARNING] at scala.tools.nsc.symtab.classfile.PickleBuffer.until
(PickleBuffer.scala:127)
[Lift] Websites and apps that are using Lift?
I'm putting together a structured wiki that documents what languages, frameworks, and libraries are behind various websites webapps. One of the goals of the project is to highlight the diverse set of languages and other components that people use to power their sites and raise the visibility of up-and-coming packages like Lift. Currently, I'm in the process of looking for and adding Lift based webapps. I've found a few sites so far like http://buyafeature.com/ , http://www.esme.us/esme/ , and the demo at http://demo.liftweb.net/ (down?). But, it would be nice to have a much more comprehensive list. Does anyone here have any public Lift powered webapps? If so, would you mind sharing the URL and what other support components you are using (e.g. which servlet container Tomcat, Jetty; database; etc.) Thanks, Dan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Snapshot documentation not current any more
Any news about the 0.10-SNAPSHOT Scaladocs issue? ---Matt On Dec 7, 6:17 am, David Bernard david.bernard...@gmail.com wrote: Generating + deploying the api for snapshots is disabled temporary. I'll fixe it ASAP On Thu, Dec 4, 2008 at 23:43, Joachim A. wallaby.po...@googlemail.com wrote: Hi, I use the generated API documentation almost every day - thanks a lot for that! The documentation (http://scala-tools.org/mvnsites-snapshots/liftweb/lift- webkit/scaladocs/index.html) used to be updated from trunk (I think :). The current pages are not current, newly added things like SHtml.autocomplet and the Join/Prefect are missing. Would be great to have documentation updated from trunk again :) Regards, Joachim --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] behind the scenes with Maven?
A few times over the past week, I've had something of a ghost in the machine with Maven. I haven't spent the time to track things down and have just blown away my repository and things resolve themselves. However, the next time Maven acts up I want to really figure things out. It'd help if I knew more about what happens behind the scenes with 0.10-SNAPSHOT. Here's a guess: 1.) Committers upload to github.org 2.) A machine (named hudson maybe?) builds 0.10-SNAPSHOT from the github source (how often?) 3.) The compiled artifacts such as lift-mapper are transfered to scala-tools.org 4.) Scaladocs are built from step 3 by scala-tools.org 5.) The lift archetypes get updated Let's say that breaking changes are made in step 1. That will only affect me if I run mvn -U, right? ---Matt --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: behind the scenes with Maven?
Yup, you've about got it right. As I understand it, Hudson uses Maven to fetch the latest code from Github, compile, test, and deploy it. (By 'deploy' I mean: put jars, scaladocs, and archetypes on scala-tools.org) When commits are made to Github, it takes about an hour for changes to appear on scala-tools.org mvn -U forces an update. mvn (without -U) will also periodically check for updates anyway. mvn -o forces offline (no updates) mode. --j On Tue, Dec 16, 2008 at 9:24 PM, Matt Harrington mbh.li...@gmail.comwrote: A few times over the past week, I've had something of a ghost in the machine with Maven. I haven't spent the time to track things down and have just blown away my repository and things resolve themselves. However, the next time Maven acts up I want to really figure things out. It'd help if I knew more about what happens behind the scenes with 0.10-SNAPSHOT. Here's a guess: 1.) Committers upload to github.org 2.) A machine (named hudson maybe?) builds 0.10-SNAPSHOT from the github source (how often?) 3.) The compiled artifacts such as lift-mapper are transfered to scala-tools.org 4.) Scaladocs are built from step 3 by scala-tools.org 5.) The lift archetypes get updated Let's say that breaking changes are made in step 1. That will only affect me if I run mvn -U, right? ---Matt --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] liftweb xml schema location
I have a client doesn't want an external link like xmlns:lift=http://liftweb.net/; Can I store the schema locally? How do I get it? cheers Oliver --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
