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Message-ID: <2abb614a0704060614p30280cb5xa3471ecf036358b5@mail.gmail.com>
Date: Fri, 6 Apr 2007 15:14:17 +0200
From: "r1 Corporation" <r1.corporation@gmail.com>
To: open-jpa-dev@incubator.apache.org
Subject: Programmatical EntityManagerFactory init
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Messieurs-dames,

As I could not find much clues about the right way to do it, here I come:
I'm trying to get an EntityManagerFactory properly setup from the
Persistence class, but I cannot get further than the following exception

javax.persistence.PersistenceException: No Persistence provider for
EntityManager named teamplay_test
    at javax.persistence.Persistence.createEntityManagerFactory(
Persistence.java:89)
    at com.gdteam.teamplay.domain.manager.TeamplayEMFactoryManager.get (
TeamplayEMFactoryManager.java:60)
    at com.gdteam.teamplay.test.persistence.PersistenceUtilTest.setUp(
PersistenceUtilTest.java:19)
    at junit.framework.TestCase.runBare(TestCase.java:125)
    at junit.framework.TestResult$1.protect (TestResult.java:106)
    at junit.framework.TestResult.runProtected(TestResult.java:124)
    at junit.framework.TestResult.run(TestResult.java:109)
    at junit.framework.TestCase.run(TestCase.java:118)
    at junit.framework.TestSuite.runTest(TestSuite.java:208)
    at junit.framework.TestSuite.run(TestSuite.java:203)

Here is the code part that leads to the exception:

public class TeamplayEMFactoryManager  {
...
    private final Map<String, String> props = new HashMap<String, String>();
    private final Map<String, EntityManagerFactory> map = new
HashMap<String, EntityManagerFactory>();
...
    private TeamplayEMFactoryManager() {
        props.put("openjpa.ConnectionDriverName", "org.hsqldb.jdbcDriver");
        props.put("openjpa.ConnectionUserName", "sa");
        props.put("openjpa.ConnectionPassword", "");
        props.put("openjpa.Log", "DefaultLevel=WARN, Tool=INFO");
        props.put("openjpa.MetaDataFactory", "jpa(Types="+buildTypes()+")");

    }

..

public EntityManagerFactory get(String url) {

        EntityManagerFactory factory = null;

        if (null == url || url.length() == 0 ) {
            url = "default";
        }

        factory = this.map.get(url);

        if (null == factory) {
            if ( "default".equals(url)) {
 1-               factory = Persistence.createEntityManagerFactory(null);
            } else {
                Map<String , String> map = new HashMap<String,
String>(props);
                map.put("openjpa.ConnectionURL ", buildUrl(url));
 2-              factory = Persistence.createEntityManagerFactory(url,map);
            }
            this.map.put(url, factory);
        }
        return factory;
    }
...
}


Note :
I'm using a persistence.xml for single persitence unit creation, and this
test works fine. I've had a dive into the source code, and found the
provider is lookuped and found by the glassfish persistence implementation
class. The exception is raised on the open jpa side, and I know I'm missing
some configuration elements, but I cannot guess what's missing?
any hint?

thank you guys

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