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POPersistence.xml and OSGi (Equinox)
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  1. POPersistence.xml and OSGi (Equinox)
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    copied!<p>I am currently testing out using OSGi. I am running this through Eclipse. I want to have my DAO layer as part of an OSGi solution, but my first stumbling block is this error:</p> <pre><code>Jun 29, 2009 6:12:37 PM org.hibernate.cfg.annotations.Version &lt;clinit&gt; INFO: Hibernate Annotations 3.3.0.GA Jun 29, 2009 6:12:37 PM org.hibernate.ejb.Version &lt;clinit&gt; INFO: Hibernate EntityManager 3.3.0.GA Jun 29, 2009 6:12:37 PM org.hibernate.ejb.Ejb3Configuration configure INFO: Could not find any META-INF/persistence.xml file in the classpath </code></pre> <p>I have tried putting the persistence.xml file in a lot of different places, to no avail. <strong>Any ideas on what I am doing wrong?</strong> </p> <p><strong>Is there a way to manually load the persistence.xml?</strong></p> <p>The <strong>activator</strong> looks like this:</p> <pre><code>package com.activator; public class PersistenceActivator implements BundleActivator { @Override public void start(BundleContext arg0) throws Exception { EntityManagerFactory emf = Persistence .createEntityManagerFactory("postgres"); EntityManager em = emf.createEntityManager(); SimpleDaoImpl dao = new SimpleDaoImpl(); dao.setEntityManager(em); } @Override public void stop(BundleContext arg0) throws Exception { // TODO Auto-generated method stub } } </code></pre> <p>Here is what my directory structure looks like:</p> <p><a href="http://www.freeimagehosting.net/uploads/7b7b7d2d30.jpg">alt text http://www.freeimagehosting.net/uploads/7b7b7d2d30.jpg</a></p> <p>Here is my <strong>Manifest.MF</strong></p> <pre><code>Manifest-Version: 1.0 Bundle-ManifestVersion: 2 Bundle-Name: Dao Plug-in Bundle-SymbolicName: Dao Bundle-Version: 1.0.0 Bundle-RequiredExecutionEnvironment: JavaSE-1.6 Import-Package: org.osgi.framework;version="1.4.0" Bundle-Activator: com.activator.PersistenceActivator Export-Package: com.dao.service Require-Bundle: HibernateBundle;bundle-version="1.0.0" </code></pre> <p><strong>HibernateBundle</strong> contains all of the Hibernate and Persistence Jars.</p> <p>Here is my <strong>Persistence.xml</strong></p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;persistence&gt; &lt;!-- Sample persistence using PostgreSQL. See postgres.txt. --&gt; &lt;persistence-unit name="postgres" transaction-type="RESOURCE_LOCAL"&gt; &lt;properties&gt; &lt;property name="hibernate.archive.autodetection" value="class" /&gt; &lt;!-- Comment out if schema exists &amp; you don't want the tables dropped. --&gt; &lt;property name="hibernate.hbm2ddl.auto" value="create-drop" /&gt; &lt;!-- drop/create tables @startup, drop tables @shutdown --&gt; &lt;!-- Database Connection Settings --&gt; &lt;property name="hibernate.connection.autocommit"&gt;true&lt;/property&gt; &lt;property name="hibernate.connection.driver_class" value="org.postgresql.Driver" /&gt; &lt;property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" /&gt; &lt;property name="hibernate.connection.username" value="postgres" /&gt; &lt;property name="hibernate.connection.password" value="postgres" /&gt; &lt;property name="hibernate.connection.url" value="jdbc:postgresql://localhost:5432/test" /&gt; &lt;!-- Not sure about these... --&gt; &lt;property name="hibernate.max_fetch_depth"&gt;16&lt;/property&gt; &lt;property name="hibernate.jdbc.batch_size"&gt;1000&lt;/property&gt; &lt;property name="hibernate.use_outer_join"&gt;true&lt;/property&gt; &lt;property name="hibernate.default_batch_fetch_size"&gt;500&lt;/property&gt; &lt;!-- Hibernate Query Language (HQL) parser. --&gt; &lt;property name="hibernate.query.factory_class"&gt; org.hibernate.hql.ast.ASTQueryTranslatorFactory&lt;/property&gt; &lt;!-- Echo all executed SQL to stdout --&gt; &lt;property name="hibernate.show_sql"&gt;true&lt;/property&gt; &lt;property name="hibernate.format_sql"&gt;false&lt;/property&gt; &lt;!-- Use c3p0 for the JDBC connection pool --&gt; &lt;property name="hibernate.c3p0.min_size"&gt;3&lt;/property&gt; &lt;property name="hibernate.c3p0.max_size"&gt;100&lt;/property&gt; &lt;property name="hibernate.c3p0.max_statements"&gt;100&lt;/property&gt; &lt;property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider" /&gt; &lt;/properties&gt; &lt;/persistence-unit&gt; &lt;/persistence&gt; </code></pre> <p>Things I have tried in the Manifest's Classpath with no luck: </p> <p><strong>Bundle-ClassPath: ., META-INF/persistence.xml</strong> </p> <p><strong>Bundle-ClassPath: ., ../META-INF/persistence.xml</strong></p> <p><strong>Bundle-ClassPath: ., /META-INF/persistence.xml</strong></p> <p><strong>Bundle-ClassPath: ., ./META-INF/persistence.xml</strong></p> <p><strong>Bundle-ClassPath: ., META-INF</strong></p> <p><strong>Bundle-ClassPath: ., ../META-INF</strong></p> <p><strong>Bundle-ClassPath: ., /META-INF</strong></p> <p><strong>Bundle-ClassPath: ., ./META-INF</strong></p> <p><strong>Bundle-ClassPath: ., C:\Workspaces\OSGiJPA\Dao\META-INF\persistence.xml</strong></p> <p><strong>Bundle-ClassPath: ., C:\Workspaces\OSGiJPA\Dao\META-INF</strong></p>
 

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