is there a reason you are not using the store shoppingcart service?
Daniel Rosowski sent the following on 6/11/2008 9:16 AM:
> Hello list,
>
> I have some rather disturbing issues when reading a stored shoppingcart
> object from the database. First of all, here is the entity definition:
>
> <entity entity-name="ShoppingSession"
> package-name="de.comp.order"
> title="Shopping Session Store">
> <field name="userLoginId" type="id-vlong-ne"></field>
> <field name="shoppingSession" type="blob"></field>
> <field name="isValid" type="indicator"></field>
> <prim-key field="userLoginId"/>
> <relation type="one" rel-entity-name="UserLogin">
> <key-map field-name="userLoginId"/>
> </relation>
> </entity>
>
> As you can see, I'm storing the shoppingcart as a blob. Here's how I write
> the object to the database:
> ...
> shoppingSession.set("shoppingSession", UtilObject.getBytes(cart));
> shoppingSession.set("isValid", "Y");
> delegator.createOrStore(shoppingSession);
>
> Next, I try to read the shoppingcart from the database:
> ShoppingCart savedCart = (ShoppingCart) shoppingSession.get(
> "shoppingSession");
>
> On my windows development machine everything works fine. The shoppingcart
> object is created properly and everybody's happy :-)
> On my linux server machine on the other hand the above line throws a
> ClassCastException saying that it cannot cast a SerialBlob to a
> ShoppingCart.
>
> I did a bit of research and found something that confused me. In the
> getValue() method in SqlJdbcUtil there's a call to deserializeField() on
> line 576. The call in.readObject() in line 683 in this method returns a
> WebShoppingCart on my development machine, but it returns null on my
> server. What is happening here? Any help is greatly appreciated.
>
> Cheers,
> Daniel
>
>
> Daniel Rosowski
> Consultant AEW
> Agrenon GmbH
> Johanniskirchplatz 6
> 33615 Bielefeld
> Deutschland
> Fon: +49 521 5247-413
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>
>
> Company and Management Headquarters:
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>
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