Greetings:
I'm trying to implement Gateway and Factory objects which will, when
combined, manage my Business Objects. UserFactory will, naturally, create
for me a User object; UserGateway will handle the database integration
aspects for any and all User objects.
Should the UserFactory object utilize a (the?) UserGateway object when
creating for me a User object at, say, login or edit time?
pseudo:
class UserFactory {
function new() {
return CreateObject("user");
}
function new(UserGateway, userID) {
return CreateObject("user").init(UserGateway.retrieve(userID));
}
}
...or should I leave retrieval of a specific user record entirely to the
UserGateway?
more pseudo:
class UserGateway {
function select() {
return (queryObject);
}
function retrieve(userID) {
q = select from users where user_id = userID
return CreateObject("user").init(q);
}
functino update(user) {
try {
q = update users set ...
} catch {
return false;
}
return true;
}
...
}
How do you relate Gateways, Factories, and Business Objects to each other?
Thanks for your help and/or advice.
ecd.
--
Eric C. Davis
Programmer/Analyst I
Georgia Department of Transportation
Office of I.T. Applications
Web Applications Group
404.463.2860.199
[EMAIL PROTECTED]
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