anchor.diff:      {
         setTransactionIsolation( transactionIsolationLevel );
       }
  +<% end -%>
     }
   
     @java.lang.SuppressWarnings( "ConstantConditions" )
  
positive.code:     {
        throw new javax.persistence.PersistenceException( "Failed to set Transaction Isolation Level", e );
      }
    }
  }
  
negative.code: 
    protected int getTransactionIsolation()
    {
  <% unless data_module.repository.pgsql? -%>
      try
      {
        return getEntityManager().unwrap( java.sql.Connection.class ).getTransactionIsolation();
  