Please excuse me if you think the question shouldn't be on this forum
I have a situation where i am passing an java object from presentation layer
( JSF/Facelets) to business layer(Spring/Hibernate)
Here is the model
public Class A{
public B b; //refers to other class B
}
I am implementing a business rule which states "an object A reference
object B value cannot be changed."
To enforce this rule, coding is done in the Business Layer method as
follows:
public void assertRule(A a)
{
// get the value of object B from object A from presentation Layer. Please
note it may contain modified value of object B
B b = a.getB();
if(a.getId() != 0)
{
//load the persistent object A from database and then
retrieve the value for object B for comparision with the value passed from
presentation layer to check if its really changed
A persistentA = xxxManager.getA(a.getId());
B persistentB = persistentA.getB();
if(!persistentB.getName().equals(b.getName()))
{
throw new ServiceException("The object A reference
object B value cannot be changed ");
}
}
}
The problem with the the above code snippet is
A persistentA = xxxManager.getA(a.getId());
Loads the object from database , but it refers to the object passed from
presentation layer and hence i am unable to check if the value of object B
has really changed or not
Any pointers/suggestions will be greatly appreciated
--
View this message in context:
http://www.nabble.com/Object-reference-%21%21%21-tp20310599p20310599.html
Sent from the MyFaces - Users mailing list archive at Nabble.com.
