Apple WebObjects 3.5 Manual do Utilizador descarregar pdf (Página 73)

Designing the Main Page

If foreign key deﬁnitions aren’t speciﬁed in your database server’s schema

information (as with Microsoft Access), the wizard hasn’t created any

relationships at all, and it skips this step. You’ll add relationships to your

model using EOModeler later in this tutorial.

In the ﬁrst relationship conﬁguration page, the wizard asks you about

Movie’s relationship to MovieRole. The name of the relationship is

dependent on the adaptor you’re using.

1. Check the “Movie owns its MovieRole objects” box.

This option speciﬁes that a MovieRole can’t exist without its Movie.

Consequently, when a MovieRole is removed from its Movie’s vector

of MovieRoles, the MovieRole is deleted—deleted in memory and

deleted in the database.

In this example, the relationship

name is

movieRoleArray, but

the name is dependent on the

adaptor you’re using.

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Apple WebObjects 3.5 Manual do Utilizador Página 73