Firstly before I start, openjpa is a great piece of software; I'm
particularly fond of the documentation and in particular the query language
parts. The CSS for the site is also awesome :)
However compared to hibernate, openjpa is still pretty painful to use from
an end users perspective and I
Hi James,
I don't know how easy this is to do with IDEA, but what I've done in Eclipse
is to create the project via mvn eclipse:eclipse then create a run
definition for org.apache.openjpa.enhance.PCEnhancer. With no other
classpath tweaking it enhances the entities in the output directory and
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https://issues.apache.org/jira/browse/OPENJPA-206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12496554
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Matt Anderson commented on OPENJPA-206:
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Just to clarify, by later, do you mean in another transaction? Can
Hello,
We are trying to understand the meaning of Enhancing the DTO object
to Persistence capabilities as observed in the trace of the exception.
OpenJPA needs to enhance the Java classes to be stored in a database.
Enhancement means modification of original Java class bytecode with
special
Hi Eddie,
Thanks to you for your guidance through the incubator.
I'll certainly ask you for help during the transition.
Craig
On May 17, 2007, at 5:44 AM, Eddie O'Neil wrote:
Craig--
It went very well -- the Board unanimously passed the resolution to
create an OpenJPA TLP with you as the
How hard is it to add a reflection/cglib type alternative to the upfront
bytecode generation (like hibernate does) to save us from the
development-time pain?
Not particularly hard. There are a few APIs that would break for some
cases, but it's even pretty straightforward to do a subclassing
Patrick also mentioned writing an IDEA plug-in (not sure if that's the right
name) that would do the enhancement. I believe he ran into a few snags
getting access to IntelliJ jars. This or something similar might be a good
solution for you. Ideally we'll have Eclipse, IDEA and NetBeans plugins
On 5/17/07, Murali [EMAIL PROTECTED] wrote:
and the following error is getting displayed. Persistence.xml file is
available in the META-INF folder.
Okay, and is this META-INF folder available to your build environment? The
classpath that is referenced via your classpathref=dao.classpath
I think this is a very worthwhile project. James and a few others
excoriated me about this issue over beers after JavaOne last week,
and, while the bruises from their rhetorical assault are still
healing, their observations about the comparative out of the box
ease of use OpenJPA
I recall Patrick was looking into replacing some of our slower Map
plumbing recently. If he is still working on that, it would be
interesting to see if these could be dropped in to see what the
performance differences were.
On May 16, 2007, at 9:21 PM, Craig L Russell wrote:
Don't
On May 17, 2007, at 3:41 PM, Marc Prud'hommeaux wrote:
I recall Patrick was looking into replacing some of our slower Map
plumbing recently. If he is still working on that, it would be
interesting to see if these could be dropped in to see what the
performance differences were.
From
James,
Could extract from this verbiage the scenarios you'd like supported?
Do you need to run tests inside IDEA and have you classes enhanced
after IDEA compiles them for you?
Do you need to run in a separate jvm, e.g. from maven, and have the
classes enhanced as they are loaded?
I
I think that the issues raised are best solved with tools,
documentation, and examples.
Of course, if one has been coding to Hibernate for years, it's unlikely
that any combination of tools, documentation, and examples will make
OpenJPA easier to use for that person, but that's not the
Hi Craig,
Another ConcurrentHashMap implementation that is available for JDK 1.4
comes from Emory University's Distributed Computing Lab.
(http://harness2.org/util/backport-util-concurrent/dist/) One of their
goals to make the source easily upgraded to java.util.concurrent once
JDK 1.4 is
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