Why NHibernate fires an update on firstOrder when saving secondOrder
in the code below? I'm using optimistic locking on Order. Is there a
way to tell NHibernate to update firstOrder when saving secondOrder
only if firstOrder was modified? If I don't add order lines to first
order then everything works as expected.
// Configure
var cfg = new Configuration();
var configFile = Path.Combine(
AppDomain.CurrentDomain.BaseDirectory,
"NHibernate.MySQL.config");
cfg.Configure(configFile);
// Create session factory
var sessionFactory = cfg.BuildSessionFactory();
// Create session
var session = sessionFactory.OpenSession();
// Set session to flush on transaction commit
session.FlushMode = FlushMode.Commit;
// Create first order
var firstOrder = new Order();
var firstOrder_OrderLine = new OrderLine
{
ProductName = "Bicycle",
ProductPrice = 120.00M,
Quantity = 1
};
firstOrder.Add(firstOrder_OrderLine);
// Save first order
using (var tx = session.BeginTransaction())
{
try
{
session.Save(firstOrder);
tx.Commit();
}
catch
{
tx.Rollback();
}
}
// Create second order
var secondOrder = new Order();
var secondOrder_OrderLine = new OrderLine
{
ProductName = "Hat",
ProductPrice = 12.00M,
Quantity = 1
};
secondOrder.Add(secondOrder_OrderLine);
// Save second order
using (var tx = session.BeginTransaction())
{
try
{
session.Save(secondOrder);
tx.Commit();
}
catch
{
tx.Rollback();
}
}
session.Close();
sessionFactory.Close();
Here is the mapping:
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="Teste" namespace="Teste.Core">
<class name="Order" table="Orders" optimistic-lock="version"
dynamic-update="true" dynamic-insert="true">
<id name="id" column="Id" access="field" type="Guid">
<generator class="guid.comb"/>
</id>
<version name="version" column="Version" access="field"
type="Int64" />
<property name="approved" column="Approved" access="field"
type="Boolean" not-null="true"/>
<set name="orderLines" table="OrderLines" access="field"
lazy="true"
optimistic-lock="true">
<key column="OrderId" foreign-key="fk_Order_OrderLine"/>
<composite-element class="OrderLine">
<property name="productName" column="ProductName"
access="field"
type="String"/>
<property name="productPrice" column="ProductPrice"
access="field"
type="Decimal"/>
<property name="quantity" column="Quantity"
access="field"
type="Int32"/>
</composite-element>
</set>
</class>
</hibernate-mapping>
--
You received this message because you are subscribed to the Google Groups
"nhusers" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/nhusers?hl=en.
