SEAM: Entity Inheritance

I will make a comparison on how the SEAM (Hibernate) framework and Rails framework handles model inheritance.

This first article is about SEAM.

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Products in multiple categories. Find similar products.

This is a draft

– product model

– product can be inΒ  more than one categories, on multiple levels of the tree (i can attach the product anywhere i want); no restriction on this what so ever.

– categories are organized as a nested set (logical organized as a tree)

Problem: need to find similar products based on this taxonomy; sorting from ‘most similar’ to ‘least similar’
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Major sites developped in Rails

http://rails100.pbwiki.com/Compete+Rankings Enjoy πŸ™‚

Of course, as expected, the Rails stars are twitter, yellow pages, scribd. I only wonder why doesn’t LinkedIn appear on their top πŸ˜•