Hello again.

One more simple question (I guess): how does nhibernate decides if a collection of components should be mapped to a table? for instance, suppose the following example:

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping
xmlns="urn:nhibernate-mapping-2.2"
schema="dbo"
assembly="SRA.Mercados.Facturacao"
namespace="SRA.Mercados.Facturacao">
<class name="ItemFactura"
table="ItemFactura" lazy="false">
<id name="Id" column="IdItemFactura" unsaved-value="0">
<generator class="identity" />
</id>
<version name="Version" column="Version"
type="int"/>
<property name="Desconto" column="Descontos" />
<bag name="_entradasAssociadas" table="OrigemEntradaFactura"
cascade="all"
access="field" lazy="false">
<key column="IdItemFactura" />
<composite-element class="OrigemEntradaFactura">
<property name="IdGuia" column="IdGuia" />
<property name="IdLote" column="IdLote" />
<property name="IdProduto" column="IdProduto" />
<property name="Preco" column="Preco" />
<property name="Quantidade" column="Quantidade" />
<property name="NifVendedor" column="NIFVendedor" />
<property name="NifComprador" column="NIFComprador" />
<property name="Guid" column="Guid" />
</composite-element>
</bag>
</class>
</hibernate-mapping>

saving an entity of type ItemFactura is not beeing cascaded to the OrigemEntradaFactura table. Is there anything wrong with this code?

Maybe your composite object wasn't changed in memory and Hibernate was smart enough to realize a post to the database wasn't necessary?

Hello.
well, that is what I'm thinking but the thing is that we're talking about an insert. if it's an insert operation, how can the component collection already be persisted on the database?

My understanding of a collection of components is that NH would automatically persist those elements when its "parent" element gets persisted. It looks like I'm wrong. can anyone give me any tips on this?

thanks again.

How about this: OrigemEntrada existed previously from some other ItemFactura, and Hibernate just reused it?

The main question here is: does the OrigemEntrada ends being reflected correctly in your database?

Hello again.

well, that is what I'm trying to say: all the tables are empty and all the objects were created for the 1st time. that's why I'm having some trouble understanding how NH works in this scenarios...

hello again...


damn, I think I've seen what's wrong: WCF serialization. if I use the same code without going through SCF, everything works out correctly...

Solved it with this cool post:

http://lunaverse.wordpress.com/2007/05/ ... hibernate/