2.0 RC2

[Nobody/Anonymous]

You say:
3. One-to-Many associations can be stored in any IList based collection

dim clientes as CPersistentCollection  (old)

and now

dim clientes as ArrayList (new)

Any of the two ?

Saludos

Victor  (Madrid - Spain)

it is correct ???

[Richard Banks]

That's right.

Obviously the CPersistentCollection includes a number of other features beyond an arraylist, but either is acceptable.

[Nobody/Anonymous]

Hi,

I have an associate manyToMany, now I am Trying use automaticretrive="lazy", it is correct. But my association has a relation OneToOne with other class.
When I get a collection the object, because the objects associate a this collection don't recovery. I have retriveautomatic="true" in the OneToOne relation.

Saludos

Victor (Madrid - Spain)

[Richard Banks]

For any association that is marked as retrieveAutomatic="lazy" proxy objects will be returned, and any associations from that object will not be processed.

If you retieve an object using associations like this:

A --(lazy)--> B --(auto)--> C

When you retrieve A, you will get A, and proxy versions of B, but no C's.

- Richard.

[Nobody/Anonymous]

Hi,
How can I  retrive object B and C ?????

In property:
if B is nothing then
   b.retrive()
       or
   b.find()
endif

and the same to C object.

Why don't lazy  option to association OneToOne doesn't run. ??????

Thanksss!!!

[Richard Banks]

In the property you actually want something like this:

Class A
  ...
  Property B() as B
    Get
       If _B.IsProxy then
          _B.Retrieve()
       End If
       Return _B
    End Get
   ....
End Class

Class B
  ...
  Property C() as C
    Get
      If Me.IsProxy then
        Me.Retrieve()
      End If
      Return _C
    End Get
    ...
End Class

So now if your code is

A.Retrieve()
Console.Writeline(A.B.C.ToString)

The first line will retrieve A, and a proxy copy of B.
The second line will cause B to be retrieved (from within the A class).  C will also be retrieved at this time since C is fully retrieved when B is retrieved.

The only time the lazy load option returns full objects is when one-to-one associations of the superclass are retrieved.  In all other cases you should have proxy objects being returned (unless they are retrieved from the cache).

- Richard.

[Nobody/Anonymous]

I have the following code in XML:
<class name="Cliente" table="cliente" database="erp" namespace="Ventas">
        <attribute name="CodigoCliente" column="codigocliente" find="true" key="primary" />
        <attribute name="Nombre" column="nombre" />
        <attribute name="Apellidos" column="apellidos" />
        <attribute name="Nif" column="nif" />
        <attribute name="RazonSocial" column="razonsocial" />
        <attribute name="FechaAlta" column="fechaalta" />
        <attribute name="FormaPago" />
        <attribute name="CodigoFormaPago" column="CodigoFormaPago" />
        <attribute name="FormaEnvio" />
        <attribute name="CodigoFormaEnvio" column="CodigoFormaEnvio" />
        <attribute name="ClienteDirecciones"/>
        <attribute name="CreatedDate" column="CreatedDate" timestamp="true" />
        <attribute name="ModifiedDate" column="ModifiedDate" timestamp="true" />
    </class>

<class name="Direccion" table="direccion" database="erp" namespace="ERP">
        <attribute name="CodigoDireccion" column="codigodireccion" find="true" key="primary" />
        <attribute name="TipoDireccion" column="tipodireccion" />
        <attribute name="Calle" column="calle" />
        <attribute name="Numero" column="numero" />
        <attribute name="Piso" column="piso" />
        <attribute name="Letra" column="letra" />
        <attribute name="Poblacion" column="poblacion" />
        <attribute name="Cp" column="cp" />
        <attribute name="Provincia" column="provincia" />
        <attribute name="Telefono" column="telefono" />
        <attribute name="Telefonomovil" column="telefonomovil" />
        <attribute name="Fax" column="fax" />
        <attribute name="Email" column="email" />
        <attribute name="Contacto" column="contacto" />
        <attribute name="CreatedDate" column="CreatedDate" timestamp="true" />
        <attribute name="ModifiedDate" column="ModifiedDate" timestamp="true" />
    </class>
<class name="ClienteDireccion" table="ClienteDireccion" database="erp" namespace="Ventas">
    <attribute name="CodigoCliente" column="CodigoCliente" find="true" key="primary"></attribute>
    <attribute name="CodigoDireccion" column="CodigoDireccion" find="true" key="primary"></attribute>
    <attribute name="Direccion" proxy="true" />
    <attribute name="Cliente" />
    <attribute name="CreatedDate" column="CreatedDate" timestamp="true" />
    <attribute name="ModifiedDate" column="ModifiedDate" timestamp="true" />
    </class>
   
    <association fromClass="Ventas.Cliente" toClass="Ventas.ClienteDireccion" cardinality="oneToMany" target="ClienteDirecciones"
        retrieveAutomatic="lazy" deleteAutomatic="true" saveAutomatic="true" inverse="false">           
        <entry fromAttribute="CodigoCliente" toAttribute="CodigoCliente" />       
    </association>

        <association fromClass="Ventas.ClienteDireccion" toClass="ERP.Direccion" cardinality="oneToOne" target="Direccion"
        retrieveAutomatic="true" deleteAutomatic="false" saveAutomatic="true" inverse="false">           
        <entry fromAttribute="CodigoDireccion" toAttribute="CodigoDireccion" />       
    </association>

How can I implement a lazy load ?????