Hi all.
I have pushed in the 'model' branch a proposal for the
velocity-tools-model submodule, which is a complete rewrite of my good
old Velosurf library.
The rationale is to be able to define and expose a model to the view layer:
- the model definition gathers entities and their attributes (which
are sql queries)
- you can start with an empty model and let it reverse enginer
all/specific tables, columns and joins in a schema
- attributes type is either scalar (string/number...), row or rowset
- the main idea is to be able to write thinks like:
$book.publisher.address.zip or #foreach($author.books)
- the Java API lets you write thinks like: Instance book =
model.getEntity("book").fetch(1); book.set("title", "foo"); book.update();
- you can provide your own POJOs for the instances of each entity,
whose getters and setters will automatically be called
- the VTL objects are wrappers around the Model, Entity and Instance
objects
- the way SQL objects and values are mapped is highly configurable
For those of you who would like to take a look at it, while waiting for
a more elaborate documentation, here are some links:
- example configuration : https://s.apache.org/AWmN
- example model definition : https://s.apache.org/Y14w
- source code in svn viewvc : https://s.apache.org/oFJY
- javadoc (still quite empty) :
https://velocity.apache.org/tools/model/apidocs/
There is still a lot of documentation and tests to write, but it is
already functional.
Of couse, every feedback is welcome.
Claude
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@velocity.apache.org
For additional commands, e-mail: dev-h...@velocity.apache.org
