How do I get the underlying type of the field in the following example?

What I'm currently doing is something like this (condensed version)



then I match the column name I'm interested in ("portfoliotocustomers") against the propertyNames array, and pick up the equivalent "Type" entry from "propertyTypes" into "columnType"
columnType = blah();



Now for the basic columns (where the columns are not one-to-many), this returns the correct type (because the underlying type in the entity itself is returned, which is perfect for my purposes), but for a <one-to-many> type column represented in my case by a java.util.Set, I get returned a Set class, when in fact I would like to get hold of a "PortfolioToCustomer" class (as per the mapping file entry)

I suppose I could get the first Set entry, and use the class of that, but what if the Set is empty??? (Which, in my case, it will be, at least initially). I presume theres a way to do this using the Hibernate API.. I just haven't encountered it yet...

Any ideas (see code below)?

Java code



Mapping fragment

take a look at getCollectionMetadata

Do u mean the following (in which case, I need to set a role name in my mapping file, which is something I haven't been doing until now)?

I have never tried to work with getCollectionMetadata :)

I suppose you should use it like

Will bang a couple of tests at it.. will post back with whatever works..

As a by-note.. I'm not sure that XDoclet supports setting the role attribute on a Set... will check that as well.

I think all collections has rolename - it is classname.collectionname

Making Progress.. the following returns me the PortfolioToCustomer class,

(where I am looking for the type of the following: "portfoliotocustomers.customer")

CollectionMetadata cmd = sessionFactory.getCollectionMetadata ("com.kbcam.core.entity.Portfolio.portfoliotocustomers");
Type prefixColType =cmd.getElementType();
Class prefixclass = prefixColType.getReturnedClass();

then I need to recurse to get the type of "customer", using the prefixclass class as the basis.. this then returns the correct class: "Customer".. so i am in business! Many thanks for the info.

To clear up the loose ends:

1) the mapping I am using does NOT contain a "role='blah'" mapping (its the same as in my previous post)
2) XDoclet 1.2beta3 does not support the role="blah" attribute on @set (@set is still supported though). Note that this DOES seem to be supported in XDoclet 1.2-beta2 though.. although I see no mention of deprecation anywhere.