Check the castor examples. you need to remove the sql element from the
collection mapping on hansen.playground.Media.
you can also add a method to the Media class setMoves(Collection c),
then you can use lazy loading too :)
cheers
db
--- Keld Helbig Hansen <[EMAIL PROTECTED]> wrote:
> I've got a very simple setup (only for testing Castor-JDO) with two
> objects "media" and "movie".
> "media" is implemented as a table with two rows having the values
> "DVD" and "VHS".
> "movie" represents a movie in either DVD or VHS format.
> I've got a one-to-many relation from object "media" to object
> "movie":
>
> <class name="hansen.playground.Media" identity="id">
> <map-to table="media" />
> <field name="id" type="integer">
> <sql name="id" type="integer"/>
> </field>
> <field name="type" type="string">
> <sql name="type" type="char" />
> </field>
> <field name="movies" type="hansen.playground.Movie"
> collection="arraylist">
> <sql many-key="id_media" />
> </field>
> </class>
>
> <class name="hansen.playground.Movie" identity="id">
> <map-to table="movie" />
> <field name="id" type="integer">
> <sql name="id" type="integer"/>
> </field>
> <field name="media" type="hansen.playground.Media"
> required="true">
> <sql name="id_media" />
> </field>
> . . . (more fields here)
> </class>
>
> In the Media class I have these methods:
>
> public void setMovies(ArrayList movies) { this.movies = movies; }
>
> public void addMovie(Movie movie) {
> movies.add(movie);
> }
>
> If I load say the "DVD" media object from the database (by a query) I
> can see that the "addMovie" method is called for every movie in DVD
> format.
>
> If I remove this method and repeat the exercise I can see that the
> "setMovies" method is now called (once).
>
> I understand that "setMovies" can be called since it's a normal
> "setter"-method for the "movies" property.
> But why is "addMovie" called at all?
>
> Is there something special about the name "addMovie" since it's
> called?
>
> Why has "addMovie" priority over "setMovies"?
>
> Thanx for your help!
>
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