* The lookup is done one by one, that is: a primary key based lookup is used.
*/
protected void readArticles() throws Exception
{
Implementation odmg = OJB.getInstance();
Database db = odmg.newDatabase();
long start = System.currentTimeMillis();
db.open(databaseName, Database.OPEN_READ_ONLY);
Transaction tx = odmg.newTransaction();
tx.begin();
for (int i = 0; i < articleCount; i++)