On Feb 13, 2010, at 10:00 AM, Alexandros Karypidis wrote:
Hello David,
Thanks for helping out. Following yout e-mail:
1) I've fixed the problem by using "SystemDatasource" (not
SystemDatabse) as the name.
2) I don't really care whether Geronimo uses JNDI or not internally.
I need to register the JPA persistence context in my web
application's JNDI context, as I am using Spring which expects to be
able to look it up via JNDI (using <jee:jndi-lookup .../> if you're
familiar with Spring). So I need the reference in web.xml for my own
purposes. Anyway, it works now so this has been resolved.
Getting the persistence unit into jndi is different from getting the
datasource it uses in jndi.
3) I don't really intend to use Derby; I was just taking things step-
by-step. Having said that, how do I define my own datasource in
Geronimo? For example, in JBoss you use a "somename-ds.xml" file to
register a datasource.
Easy way to get started is to use the wizard...
http://cwiki.apache.org/GMOxDOC22/configuring-datasource.html
I prefer to build all my apps as geronimo plugins and assemble a
custom server around them, but using the wizard to get the initial
plan is very convenient.
hope this helps
david jencks
On 12/2/2010 8:20 μμ, David Jencks wrote:
Geronimo doesn't use jndi for the datasources in persistence.xml.
You don't need to configure resource-refs for the datasources. You
do need to make sure they are in ancestor plugins to the app and
that you use the name from the datasource configuration. In this
case I think that would be
<jta-data-source>SystemDatabase</jta-data-source>
In my experience, at least with derby, you need both jta and non-
jta datasource. I guess if you aren't using jta transactions at
all you might be able to use just a non-jta-data-source, but I
haven't tried this.
thanks
david jencks
On Feb 12, 2010, at 6:53 AM, Alexandros Karypidis wrote:
Hello,
My scenario is this:
I have a library with entities (as in @Entity objects) containing
my domain model. I want to declare a container-managed persistence
unit in a standalone WAR (not EAR), using that library (the
persistence.xml must NOT be in the library, but the WAR). So, I
proceed as follows (this is valid as far as I know, base on J2EE5
specs):
1) I have declared a data source in geronimo-web.xml and web.xml
(see below for file contents).
2) I put my library (as a jar) in my WAR's WEB-INF/lib and added a
WEB-INF/classes/META-INF/persistence.xml in the WAR (see below for
file contents).
Deployment after performing step (1) worked and I could see the
data source registered in the console.
Deployment after performing step (2) fails; from what I understand
from the error (see below), geronimo claims the data-source from
step (1) does not exist. I assume that geronimo tries to create
the persistence context prior to registering the data source?
(i.e. it processes persistence.xml prior to apply the
configuration from web.xml and geronimo-web.xml).
What do I need to configure this properly. My deployment
descriptors and the error trace follow:
persistence.xml
-------------------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="appPersistenceUnit" transaction-type="JTA">
<jta-data-source>jdbc/AppDataSource</jta-data-source>
<jar-file>app-entities.jar</jar-file>
</persistence-unit>
</persistence>
web.xml
-------------------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<web-app
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
version="2.4">
<display-name>App</display-name>
<!-- Unrelated Spring contextListener and Wicket filter
configuration here
have been supresed -->
<resource-ref>
<res-ref-name>jdbc/AppDataSource</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
<!--
Ultimately I want to do this, but I can't get persistence.xml to
work...
<persistence-unit-ref>
<persistence-unit-ref-name>persistence/appPersistenceUnit</
persistence-unit-ref-name>
<persistence-unit-name>appPersistenceUnit</persistence-unit-name>
</persistence-unit-ref>
-->
</web-app>
geronimo-web.xml
-------------------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1"
xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.2"
xmlns:sec="http://geronimo.apache.org/xml/ns/security-2.0"
xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
<sys:environment>
<sys:moduleId>
<sys:groupId>app</sys:groupId>
<sys:artifactId>app-frontend</sys:artifactId>
<sys:version>0.0.1</sys:version>
<sys:type>car</sys:type>
</sys:moduleId>
<sys:dependencies>
<!-- Need the embedded Derby -->
<sys:dependency>
<sys:groupId>org.apache.geronimo.configs</sys:groupId>
<sys:artifactId>
system-database
</sys:artifactId>
</sys:dependency>
</sys:dependencies>
</sys:environment>
<context-root>/app</context-root>
<!-- Ultimately, I want to register the PU in JNDI,
but persistence.xml does not work
<naming:persistence-unit-ref>
<naming:persistence-unit-ref-name>persistence/appPersistenceUnit</
naming:persistence-unit-ref-name>
<naming:persistence-unit-name>persistence/appPersistenceUnit</
naming:persistence-unit-name>
</naming:persistence-unit-ref>
-->
<naming:resource-ref>
<naming:ref-name>jdbc/AppDataSource</naming:ref-name>
<naming:resource-link>SystemDatasource</naming:resource-link>
</naming:resource-ref>
</web-app>
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