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-friendly.html
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.
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