On Thu, 2004-12-02 at 08:59, Kevin J. Menard, Jr. wrote:
> Hi,
>
> As some of you know, I'm working on an implementation of the
> WOXMLCoder/Decoder system for Cayenne. Work has been progressing
> along fairly well as I have time. I am running into a bit of a
> logical issue with regards to the model file though that I'm hoping
> someone more familiar with the system might be able to answer.
>
> The first entity block is for the object being encoded, and each
> subsequent one for helper objects. Are the property items specified
> in these subsequent entities referring to the base object or the
> helper one?
>
> E.g., in the mapping file below:
>
> <model>
> <entity name="Test" xmlTag="Test">
> <property name="name" xmlTag="statusId"/>
> <property name="address" xmlTag="itemIdentifier"/>
> <property name="phone" xmlTag="PriorityId"/>
> <property name="map.key" xmlTag="embedded"/>
> <property name="user" xmlTag="ownedBy"/>
> </entity>
> <entity name="User" xmlTag="ownedBy">
> <property name="user.name" xmlTag="ownerName"/>
> <property name="user.password" xmlTag="clearance"/>
> </entity>
> </model>
>
I havent used WOXMLCoder/Decoder for ages, but I think it should look
like the following,
<model>
<entity name="Test" xmlTag="Test">
<property name="name" xmlTag="statusId"/>
<property name="address" xmlTag="itemIdentifier"/>
<property name="phone" xmlTag="PriorityId"/>
<property name="map.key" xmlTag="embedded"/>
<property name="user" xmlTag="ownedBy"/>
</entity>
<entity name="User" xmlTag="ownedBy">
<property name="name" xmlTag="ownerName"/>
<property name="password" xmlTag="clearance"/>
</entity>
</model>
this would encode to,
<Test>
<ownedBy>
<ownerName>kevin</ownerName>
<clearance>secret</clearance>
</ownedBy>
</Test>
That would make sense to me... but then again some may say I'm not very
sensible. :)
>
> "user", a property of the Test object, is of type User, which has
> properties "name" and "password". Should the second entity be using
> properties "name" and "password" that reference a User object that
> links to the "user" property in the first entity block, or should they
> be written as they are, referencing the nested "user.name" and
> "user.password" properties of the Test object?
>
> And is it assumed that all properties are initialized in the
> constructor? E.g., with "map.key" above, which is a HashMap, if it is
> only valid after a "set" operation, I have to watch out for null
> values. If it can be assumed to be initialized, then it's not a
> problem.
>
> Thanks,
> Kevin
cheers,
-- shaun
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