Update. I think I have this figured out. The problem I encountered was
caused by forgotten to add in code to initialize my Vector upon creation and
was receiving a nullPointerException during use.
Dah!
Jeff
On Thursday 27 February 2003 01:41 pm, you wrote:
> Hi,
>
> I've setup a non-decomposed M:N relationship in my datastore so now how do
> I CRUD (create, read, update and delete) records that participate in this
> relationship? An example provided by the OJB website for adding records to
> datastore does exist but doesn't reflect any type of advanced relationship
> between tables. How would one modify this example to reflect a M:N
> relationship? What I'm really looking for CRUD!!! I want CRUD! Yummy
> CRUD! Okay, I'm being silly... Any help would be appreciated.
>
> *** Simple example CUT FROM PersistenceBroker API documentation ***
> public void apply()
> {
> // this will be our new object
> Product newProduct = new Product();
> // now read in all relevant information and fill the new object:
> System.out.println("please enter a new product");
> String in = readLineWithMessage("enter name:");
> newProduct.setName(in);
> in = readLineWithMessage("enter price:");
> newProduct.setPrice(Double.parseDouble(in));
> in = readLineWithMessage("enter available stock:");
> newProduct.setStock(Integer.parseInt(in));
>
> // now perform persistence operations
> try
> {
> // 1. open transaction
> broker.beginTransaction();
>
> // 2. make the new object persistent
> broker.store(newProduct);
> broker.commitTransaction();
> }
> catch (PersistenceBrokerException ex)
> {
> // if something went wrong: rollback
> broker.abortTransaction();
> System.out.println(ex.getMessage());
> ex.printStackTrace();
> }
> }
>
>
> Thanks in advance,
>
> Jeff
>
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