[lyo-dev] Fwd: Dynamic Model

[Gunther Bachmann <gunther.bachmann@xxxxxxxxx>]

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Hi,

I'm currently working on a piece of code that needs to dynamically build
resources (e.g. requirements) during runtime. That is, during compile
time I do not have the knowledge of what resources there are and how
they are typed. Thus I do not have the possibility to create java
classes with the appropriate annotations (except through runtime
generation, which I want to avoid).

Now, is there any possibility to make use of (parts of) the lyo
libraries without resource classes that are annotated? Is it conceivable
to extend the library in a few spots to allow working on (dynamic)
resources, which are not based on annotated pojos (and if so could you
point them out?), or is this concept of retrieving and using annotations
spread too widely within the library to actually support that use case?

I got at least some small example working implementing IExtendedResource
using the extended properties, but that does not go very far (writing
rdf with jena did work to some extent, but reading that rdf did not work
because of missing annotations on the target class).

Kind regards and thanks in advance
Gunther Bachmann


PS: To give an impression of what I want to do, some non working java
code that defines e.g. a requirement with properties which are unknown
on compile time and are dynamically constructed during runtime ...

class MyResource{
  URI uri; // resource identification
}
class Requirement extends MyResource{
  List<Property> properties // list is filled during runtime
}
class Property{
  QName qname; // names are set during runtime
}
class StringProperty extends Property{
  String value;
}
class RelationProperty extends Property{ // e.g. rdf:type
  MyResource target;
  List<Property> values; // relations may have describing values
themselves (reification)
}


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