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List:       ojb-user
Subject:    RE: Setup Question.
From:       "Philip Denno" <pdenno () tsi ! bc ! ca>
Date:       2005-03-31 0:09:30
Message-ID: D3F080A85F0191469382167C20CC79AB012694A8 () vtexchange ! tsi ! bc ! ca
[Download RAW message or body]

Actually, I found the jar file, but now I get NullPointerExceptions. I
traced this through to the QueryImpl class and a member variable
Collection which is never set. The offending member is the 
"imports" Collection which I assume is where the package names which are
to be instansiated and returned are stored.

The exact error is:

java.lang.NullPointerException
	at
org.apache.ojb.jdo.jdoql.QueryTreeResolver.checkImports(QueryTreeResolve
r.java:117)
	at
org.apache.ojb.jdo.jdoql.QueryTreeResolver.resolveAndCheck(QueryTreeReso
lver.java:86)
	at org.apache.ojb.jdo.QueryImpl.compile(QueryImpl.java:302)
	at org.apache.ojb.jdo.QueryImpl.execute(QueryImpl.java:323)
	at com.tsi.test.jdo.JDOTest.<init>(JDOTest.java:72)
	at com.tsi.test.jdo.JDOTest.main(JDOTest.java:79)
Exception in thread "main" 

The code which generates this problem is:

	public JDOTest(int garbage)
	{
		Properties props = new Properties();
		props.put("javax.jdo.PersistenceManagerFactoryClass",
"org.apache.ojb.jdo.PersistenceManagerFactoryImpl");
		
		// PersistenceManagerFactory pmf = new
PersistenceManagerFactoryImpl();
		PersistenceManagerFactory pmf =
JDOHelper.getPersistenceManagerFactory(props);
		pmf.setConnectionUserName("guest");
		pmf.setConnectionPassword("guest");
		pmf.setConnectionDriverName("com.mysql.jdbc.Driver");
		pmf.setConnectionURL("jdbc:mysql://localhost/tsi");
		PersistenceManager pm = pmf.getPersistenceManager();
		
		// 2. Build a query to look up product by the id
		int id = 1;
		Query query = pm.newQuery(Product.class);
		
		// 3. execute query
		Collection result = (Collection) query.execute();
		Product x = (Product) result.iterator().next();	
	} 

Is there another call I have to make in order to populate the "imports"
Collection?

Cheers,
Philip. 

-----Original Message-----
From: Philip Denno [mailto:pdenno@tsi.bc.ca] 
Sent: March 30, 2005 2:19 PM
To: OJB Users List
Subject: RE: Setup Question.


I have created a demo program which allows me to persist my data to
mysql but when I read the data back out I get the following error:

java.lang.NoClassDefFoundError: antlr/TokenStreamException
	at org.apache.ojb.jdo.QueryImpl.setFilter(QueryImpl.java:145)
	at
org.apache.ojb.jdo.PersistenceManagerImpl.newQuery(PersistenceManagerImp
l.java:364)
	at com.tsi.test.jdo.JDOTest.<init>(JDOTest.java:68)
	at com.tsi.test.jdo.JDOTest.main(JDOTest.java:78)
Exception in thread "main" 

Does anybody know which jar file this package is in?

Thanks for all your help so far.

Cheers,
Philip. 

-----Original Message-----
From: Philip Denno [mailto:pdenno@tsi.bc.ca] 
Sent: March 30, 2005 11:34 AM
To: OJB Users List; Thomas Dudziak
Subject: RE: Setup Question.


Thanks Thomas, changing the platform="mysql" to platform="MySQL" works.

Cheers,
Philip.

-----Original Message-----
From: Thomas Dudziak [mailto:tomdzk@gmail.com] 
Sent: March 30, 2005 11:13 AM
To: OJB Users List
Subject: Re: Setup Question.


On Wed, 30 Mar 2005 11:09:52 -0800, Philip Denno <pdenno@tsi.bc.ca>
wrote:
> Thanks, that makes sense.
> 
> I replaced the jar file to be 1.0.2 and it now loads fine. Now I get 
> the following problem when I launch related to the 
> repository_database.xml
> 
> Once again I took the defaults from the apache website and attempted 
> to customize them. The exact warning from OJB is:
> 
> [DEFAULT] WARN: [PlatformFactory] problems with platform
> org.apache.ojb.broker.platforms.PlatformMysqlImpl:
> org.apache.ojb.broker.platforms.PlatformMysqlImpl
> [DEFAULT] WARN: [PlatformFactory] OJB will use PlatformDefaultImpl 
> instead
> 
> I modified the default file so that it looks like the following:
> 
> <jdbc-connection-descriptor
>                 jcd-alias="default"
>                 default-connection="true"
>                 platform="mysql"
>                 jdbc-level="2.0"
>                 driver="com.mysql.jdbc.Driver"
>                 protocol="jdbc"
>                 subprotocol="mysql"
>                 dbalias="tsi"
>                 username="guest"
>                 password="guest"
>                 batch-mode="false"
>         useAutoCommit="1"
>         ignoreAutoCommitExceptions="false"
>      >
> 
> Are any of these settings incorrect? What exactly is wrong with the 
> mysql platform class?

The platform setting is case sensitive, if you use "MySQL" as the value,
then it should work.

Tom

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