Hi hibernators....


Trying to integrate Web Services in my Hibernate-Spring based project I meet a problem by using Apache Axis as Web Service framework. My intention is not to provide a DTO layer, just inject POJO's domain object to the client.

I'm using Java2WSDL to generate WSDL from hibernated POJO's. Then, I use WSDL2Java to provide se/deserializers to the POJO's in an ant task. This schema works well.

The problem is that custom SOAP spec not supports Set collections mapped in POJO's (in one-to-many relations), just only typed Arrays.

Have I to write DTO's with typed arrays??? they would be the same as POJO's domain objects with typed arrays instead Set collections!!!!

Other solutions?

Thanks in advance.....

Jose Manuel

why don't you map your to-many relationship as an array?
<array name="foos" table="BAR_FOOS" cascade="all">
<key column="BAR_ID"/>
<index column="I"/>
<many-to-many column="FOO_ID" class="org.hibernate.Foo"/>
</array>

thank you anthony

I have to look in hibernate documentation more frequently....
I didn't know the existence of array mapping type in hibernate...

Jose, I'm curious - how are you handling the disconnected state of the Hibernate POJOs once they are SOAPed across the wire? Have you left lazy instantiation turned off? I'm getting ready to implement a SOAP transport on top of a Hibernate-fronted persistence store next month and could use any tips you have to share. TIA,
Scott

smccrory,

I believe that we are forced not to use lazy loading when implement the Web services layer mapping collections with "array". If you inspect hibernate mapping dtd, you can see that
array mapping collection hasn't "lazy" attribute supported.

In my project I send and receive all the graph object on request. I not have implement any "request data on demand" strategy.

I hope this help you....

Jose Manuel

PD: sorry by this delayed response

Thanks for the reply! Yea, I think we're going to go that route as well.
Scott