Cayenne POJO inheritance

From: Gilberto C. Andrade (gilbertoc..mail.com)
Date: Fri Aug 07 2009 - 14:57:18 EDT

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    Hi, sometime ago I've tried cayenne JPA [1] and that time I couldn't
    touch POJO source code.
    Now this is a personal learning and I want do the cayenne way.

    So trying Andrus advices:

    1 reverse engineer the DB in question with CayenneModeler
    2 manually tweak the model to match the property names in the existing
    POJO Java classes
    3 Run class generator to generate the _Xyz superclasses.
    4 Change the existing classes by hand to inherit from _Xyz counterpart.
    5 Remove existing persistence fields, and use superclass getters and
    setters to access them. * Change the API throughout the code to use
    Cayenne ObjectContext and Queries.

    I've stopped on 4 when I saw the source generated
    (osu-park/src/main/resources/codigo). The class inheritance looks a
    little odd.

    While testing my original code I do this
    (osu-park/src/test/java/park/model/party/PessoaTest.java):
    [code]
    public class PessoaTest {

    ..est
            public final void testPessoaFisica() {
                    Pessoa p;
                    p = new PessoaFisica(1, "Gilberto", "F", "Endereço",
    Date.valueOf("2009-01-01"), "RG", "CPF");
                    assertNotNull(p);
            }

    ..est
            public final void testPessoaJuridica() {
                    Pessoa p;
                    p = new PessoaJuridica(1, "Souza e cia", "J", "Endereço",
    Date.valueOf("2009-01-01"), "CNPJ");
                    assertNotNull(p);
            }
    }
    [/code]

    How would it be with the new generated code? I think I need a good reference!

    Thanks,

    Gilberto C. Andrade
    blog.gilbertoca.com

    [1]http://markmail.org/message/ijogqds67xhkri2u


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