Positive. The DAO classes and the persistence.xml are all packaged in a jar file. I can use these DAO classes to query the database from a a desktop Java application which has a dependency on this jar.
The issue is when I attempt to use the same jar as an eclipse plugin and call the query methods. Also, I've verified the existence of persistence.xml in the META-INF folder by unjarring the jar file. -sud Patrick Linskey wrote: > Are you sure that the jar contains the right file at META-INF/persistence.xml? > > -Patrick > > On 9/17/07, sudhakar <[EMAIL PROTECTED]> wrote: > >> I realize this is more of an eclipse related question. But was hoping >> someone here has already tackled this. >> >> I have some DAO classes that user OpenJPA. This is packaged as a jar and >> I can use the jar in a regular Java application to connect and query the >> database. I then created an Eclipse RCP plugin frmo this jar file. When >> I launch the plugin inside an RCP application I get a >> >> Caused by: <openjpa-1.0.0-r420667:568756 fatal user error> >> org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or >> DataSource class name must be specified in the ConnectionDriverName >> property. >> at >> org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:72) >> at >> org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:803) >> at >> org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:568) >> >> >> Looks like OpenJPA cannot locate the persistence.xml file. Seems like >> eclipse class loading issues. If someone's already figured out how to >> get this to work I'd appreciate any pointers. >> >> Thanks >> >> > > >
