which maven gwt plugin are you using -- is it the codehaus gwt plugin?
to be honest, this sounds like it is not so much a gwt thing as it is a
hibernate/spring thing.
i've used hibernate/spring a lot with jpa, and never had to specify a weaver
via an extra JVM argument. it seems a bit odd. i'm not trying to dodge the
question, but typically i solve these issues with google searches.
something in your project setup is not right -- narrow it down.
On Tue, Nov 3, 2009 at 4:57 PM, Yaakov <yaakov.chai...@gmail.com> wrote:
>
> Thanks for point that out... Now, it does pick up the persistence
> unit...
>
> However, I am still not able to start up pre-bundled with Eclipse GWT
> Jetty server.
>
> First, it complained that I didn't specify a persistence provider. I
> did that by changing my entityManagerFactory to this:
>
> <bean id="entityManagerFactory"
>
> class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
> <property name="persistenceUnitName" value="testUnit">
> <property name="jpaDialect"
> value="org.springframework.orm.jpa.vendor.TopLinkJpaDialect" />
> <property name="jpaVendorAdapter"
> value="org.springframework.orm.jpa.vendor.TopLinkJpaVendorAdapter" />
> </bean>
>
> After I did this, it started complaining that I "Cannot apply class
> transformer without LoadTimeWeaver specified".
>
> Well, I tried specifying the load time weaver:
> <bean id="entityManagerFactory"
>
> class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
> <property name="loadTimeWeaver">
> <bean
> class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"
> /
> >
> </property>
> <property name="persistenceUnitName" value="testUnit">
> <property name="jpaDialect"
> value="org.springframework.orm.jpa.vendor.TopLinkJpaDialect" />
> <property name="jpaVendorAdapter"
> value="org.springframework.orm.jpa.vendor.TopLinkJpaVendorAdapter" />
> </bean>
>
>
> When I specify that, it complains that in order to use that particular
> weaver, I need to start with a Java agent... From Spring
> documentation, that would be spring-agent-2.5.5.jar...
>
> I opened "Run Configurations" in Eclipse and chose my GWT web app run
> configuration. Then, I switched to the Arguments tab and put this in
> VM arguments:
> "-javaagent:c:\spring-agent-2.5.5.jar"
>
> This is the exact same configuration (in my spring config and in my
> run configuration) that I use to run JPA DAO tests without requiring a
> server and it runs just fine within Eclipse and within maven...
>
> However, even after specifying the Java agent the way I just
> described, I still get the same error... It's as if GWT Hosted mode
> server doesn't see that I am asking it to start with a specific Java
> agent (specified in the Arguments-vm arguments in Eclipse)...
>
> Any ideas as to how to get this to work?
>
> Thanks,
> Yaakov.
>
>
>
> On Nov 3, 3:33 pm, Davis Ford <davisf...@zenoconsulting.biz> wrote:
> > don't put persistence.xml in war folder, put it here:
> >
> > ${basedir}/src/main/resources/META-INF/persistence.xml
> >
> > When you build, maven will make sure it goes in the classes dir of your
> > webapp (i.e. app.war!/WEB-INF/classes/persistence.xml)
> >
> > On Tue, Nov 3, 2009 at 3:03 PM, Yaakov Chaikin <yaakov.chai...@gmail.com
> >wrote:
> >
> >
> >
> >
> >
> > > Hi,
> >
> > > I am trying to get hosted mode to work in Eclipse 3.4 with GWT plugin
> > > 1.7 on Windows...
> >
> > > Here is what I have:
> >
> > > 1) Maven folder structure, as I use maven to compile/deploy the whole
> > > thing.
> > > 2) 3 separate modules (eclipse projects): Persistence, Model, and Web
> > > (this is the GWT project).
> > > 3) Model has JPA annotated POJOs
> > > 4) Persistence has Spring annotated DAOs like this:
> > > @Service
> > > @Transactional
> > > public UserDAOImpl implements UserDAO
> > > {
> > > @PersistenceContext(unitName="testUnit")
> > > private EntityManager manager;
> >
> > > public User getUser(String userName)
> > > {
> > > // some JPA code
> > > }
> > > }
> >
> > > 5) The Persistence module has persistence.xml in
> > > src/main/resource/META-INF which looks like this:
> > > <.... standard header stuff...>
> > > <persistence-unit name="testUnit" transaction-type="RESOURCE_LOCAL">
> > > <class>test.User</class>
> > > <properties>
> > > <property name="toplink.jdbc.driver"
> > > value="oracle.jdbc.driver.OracleDriver" />
> > > <property name="toplink.jdbc.url" value="oracle URL" />
> > > <property name="toplink.jdbc.user" value="user" />
> > > <property name="toplink.jdbc.password" value="password" />
> > > </properties>
> > > </persistence-unit>
> >
> > > 6) In my Web module, I load this Spring configuration:
> >
> > > <... standard header stuff....>
> > > <bean id="entityManagerFactory"
> > >
> class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
> > > <property name="persistenceUnitName" value="testUnit">
> > > </bean>
> > > .....
> > > there are other things defined here
> > > .....
> >
> > > I think it is #6 where things are getting stuck... When I try to start
> > > Eclipse GWT in Hosted mode, the console spits out "error creating bean
> > > with name 'entityManagerFactory' defined in class path resource
> > > test-context.xml: Invocation of init method failed; nested exception
> > > is java.lang.IllegalArgumentException: No persistence unit with name
> > > 'testUnit' found
> >
> > > I have no idea why this is happening... I already tried to create a
> > > directory under my 'war' directory in the Web module called META-INF
> > > and place the persistence.xml there, but it still says it can't find
> > > the persistence unit with name 'testUnit'...
> >
> > > My maven dependencies bring the following into classpath (besides the
> > > other 2 modules this one depends on and besides the usual gwt ones):
> > > <dependency>
> > > <groupId>java.persistence</groupId>
> > > <artifactId>persistence-api</artifactId>
> > > <version>1.0</version>
> > > </dependency>
> > > <dependency>
> > > <groupId>oracle</groupId>
> > > <artifactId>jdbc</artifactId>
> > > <version>1.4</version>
> > > </dependency>
> > > <dependency>
> > > <groupId>oracle</groupId>
> > > <artifactId>oracle.toplink.essentials</artifactId>
> > > <version>2.1-b60e-fcs</version>
> > > </dependency>
> > > <dependency>
> > > <groupId>commons-dbcp</groupId>
> > > <artifactId>commons-dbcp</artifactId>
> > > <version>1.2.2</version>
> > > </dependency>
> >
> > > Obviously, there is more, but the bottom line is, for some reason, it
> > > refuses to recognize my persistence unit... This is very frustrating
> > > as I can't imagine having to redeploy every time I need to make GUI
> > > update... One of the biggest points of GWT basically is out the
> > > window.
> >
> > > I tried following what this blog pointed out (which is basically what
> > > I've described above, but still have the same issues):
> >
> > >http://codetrips.blogspot.com/2009/05/gwt-spring-and-jpa-not-really-f.
> ..
> >
> > > I can't imagine no one has used GWT with Spring and JPA and I am the
> > > first one, so whoever knows the magic solution for this, please help
> > > me out. I'd really appreciate it.
> >
> > > Thanks,
> > > Yaakov.
> >
> > --
> > Zeno Consulting, Inc.
> > home:http://www.zenoconsulting.biz
> > blog:http://zenoconsulting.wikidot.com
> > p: 248.894.4922
> > f: 313.884.2977
> >
>
--
Zeno Consulting, Inc.
home: http://www.zenoconsulting.biz
blog: http://zenoconsulting.wikidot.com
p: 248.894.4922
f: 313.884.2977
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