product.setDescription( "My Product" );
product.setNumberAvailable( 10 );
product.setPrice( new BigDecimal( 123 ) );
product.setProductId( "1234" );
s.save( product );
li = order.generateLineItem( product, 10 );
s.save( li );
s.flush();
Query query = s.createQuery( "from LineItem l where l.id in (:idList)" );
List list = new ArrayList();