[OJB-developers] Re: OJB enhancements to 07.343

[Eric B. <EBi...@sa...>]

Is this supported patch? If so, will it be integrated into future versions
of OJB?

- Eric


----- Original Message -----
From: "Jakob Braeuchi" <jbr...@ho...>
To: <obj...@li...>
Date: Sun, 17 Feb 2002 10:55:20 +0100
Subject: [OJB-developers] OJB enhancements to 07.343

hi,

the attached zip contains several enhancements to version 07.343:

- deferred loading (lazy) for 1:1 relationships
- wasNull when reading from ResultSet
- platform cacheing
- platform functions for setObject(), setNull()
- a MySql platform to fix setObject for Types.BIT
- StatementManager bindInsert and bindUpdate use platform functions now

the most important feature is deferred loading for 1:1 relationships. it's
based on DynamicProxies and thus requires you to implement an interface for
the target side of the relationship (referenced.class). to enable it, use
<proxyReference>true</proxyReference> in ReferenceDescriptor:

<ReferenceDescriptor id="1">
    <rdfield.name>partner</rdfield.name>
    <referenced.class>brj.ojb.Person</referenced.class>
    <fk_descriptor_ids>9</fk_descriptor_ids>
    <proxyReference>true</proxyReference>
</ReferenceDescriptor>

for consistency i also renamed <proxy> to <proxyCollection> for
CollectionDescriptor.

jakob