AppGen

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By default, AppGen will generate only Actions/Controllers, Action/Controller Tests, test data, i18n keys and JSPs. It will also configure Actions/Controllers for you. It uses the generic BaseManager and BaseDaoHibernate classes (configured as "manager" and "dao") to reduce the number of files that are generated. However, I realize that sometimes you will want to generate all the DAO and Manager classes (as well as their tests), so I've added that option too.

To see what AppGen does and how it works, see the AppGen Screencast.

To use the AppGen tool (after installing your web framework), perform the following steps:

1. Configure the mapping file for your POJO in applicationContext-hibernate.xml. AppGen will add the PersonDao, you just need to add the mapping file to the sessionFactory bean's mappingResources property.
2. cd into the extras/appgen directory and run ant. You will be prompted to generate from a POJO or a Table. If you choose pojo, the .java file should already exist in your model package. If you choose table, Middlegen will be used to create a POJO from an existing database table. This generates all the files you create in the tutorials on this site (for your chosen web framework).
3. To install the generated files, run ant install. You can run ant install -Dmodel.name=Person if you want to do everything in one fell swoop. WARNING: You might want to backup your project before you do this - or at least make sure it's checked into a source code repository. I've tested this code, and I think it works well - but it is modifying your source tree for you.

After generating the view layer, it's up to you to modify the *Form.jsp (*Form.html for Tapestry) and make it look pretty. This is covered in Step 5 of each respective web framework's "Create Action/Controller" tutorial: Struts, Spring, WebWork, JSF and Tapestry.

I encourage you to read the tutorials before using AppGen. That way you'll understand what's being generated for you and you'll only need to mailing list for asking smart questions. ;-) Hopefully this tool will remove the pain of writing simple CRUD code and let you concentrate on developing your business logic and fancy UIs!

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