Hibernate Relationships in DataSources

[farmer]

I'm currently using one of the GWT-RPC DataSources to provide data
I also successfully used REST using XStream to automatically transform my objects to xml.

The issue I have is ridiculous: too much information!
For the SmartClient I only need the primary/foreign keys to links multiple datasources, but using Hibernate i get the whole object tree.

example:

class Person{
	int id;
	int name;
	Address address;
	
	// etc...
}

class Address{
	int id;
	String city;
	// etc...
}

so using Hibernate i get a Person with an Address inside!
To link the Person and Address Datasources, i only need the addess_fk and the address_id.

When i get the object tree and only take the foreign key, presentation works fine (despite wasting a lot of traffic)
but then, when changing an relationship, hibernate requires the object, not just the foreign_key.
I might fix that on serverside manually by loading the object from the db and put it in, but then i need to write the REST Transformer myself or provide a nearly-identical dublicate class to do it with xstream

Any idea, how i might fix that without writing a lot of server side transformers or dublicating value objects?
I can't use smartgwtee :(

[Isomorphic]

The "nearly identical object" you're stuck with creating is commonly called a "DTO" (data transfer object) and the way to avoid this redundant object is SmartGwt Pro / EE. Why is it that you say you can't use it?

[farmer]

it's not that I can't - I don't want to :)

it sounds really stupid to load the whole tree just to get IDs that are on my table anyway (at least in the many-to-one relationships) and I don't like to create and fill DTOs just because of the reference-ids.

for now i decupled all relationships and let the client manage it, which is not nice but should have the best performance.... when i add two references, hosted mode does not respond anymore...
do i have to much records for clientside referencing?
3900 products referencing one of 420 categories and 40 distributors

[farmer]

for the records: what messed up the performance of my ListGrid was this:
setShowAllRecords(true);

that's really no wonder since the grid had to load 4000 records and the lazy fetching was not used. So it's really not SmartGWT's fault :)