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one-to-one

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juanchito

Post subject: one-to-one

Posted: Thu Jan 27, 2005 2:58 pm

Newbie

Joined: Tue Jan 25, 2005 11:53 am
Posts: 8

hi,

i have a one-to-one association:

Code:

<class name="ambar.modelo.cuenta.CuentaPeriodo" table="cuenta_periodo">
    <id name="id" column="id" unsaved-value="-1">
   <generator class="sequence">
            <param name="sequence">sc_cuenta_periodo</param>
        </generator>
    </id>
.....
<one-to-one name="liquidacion" class="ambar.modelo.cuenta.LiquidacionConsumo"/>
...</class>

and in CuentaPeriodo.java i have an object liquidacion of type ambar.modelo.cuenta.LiquidacionConsumo

but i don´t want to have in LiquidacionConsumo.java an object cuentaPeriodo

so this mapping doesn´t work:

Code:

   <class name="ambar.modelo.cuenta.LiquidacionConsumo" table="liquidacion_consumo">
    <id name="id" column="id">
   <generator class="foreign">
            <param name="property">id</param>
        </generator>
    </id>
.....
    <one-to-one name="id" class="ambar.modelo.cuenta.CuentaPeriodo" property-ref="liquidacion"/>
...</class>

i don´t know if i´m clear enough if i´m not please let me know.

thanks everyone for any help,

Juan Gabriel Romero Silva

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juanchito

Post subject: one-to-one generator "assigned"

Posted: Fri Jan 28, 2005 1:19 pm

Newbie

Joined: Tue Jan 25, 2005 11:53 am
Posts: 8

Searching at the reference documentation i found the Author/Work Example(18.2). There is an one-to-one association like i need:

Code:

<class name="Author" table="authors">
  <id name="id" column="id">
  <!-- The Author must have the same identifier as the Person -->
    <generator class="assigned"/>
  </id>
..</class>

But here is used the generator "assigned".

I´ve read about it and i understand i have to use programmatic means to assigned a value to id. I´m wrong?. In any case, where do i assign a value to this id??

thanks, thanks

Juan Gabriel Romero Silva

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