<quote> (From the JDO 2.0 kick off meeting)
Use Cases or Fetch Groups
This is a fairly open idea right now, however the idea is that a developer
can setup different "use cases", which can encapsulate performance
characteristics. For example, if you are in one use case, use a particular
fetch group (as you know that in this case you will need X, Y, and Z), a
certain locking strategy, etc. This could be really powerful, so look out
for this concept in the future!
</quote>
So ,as I understand I will can write things like this without any subsequent
queries in getters:
<code>
List users = queryByCriteria(User.class,..., new String[]
{"user.userGroup.*", "user.userSettings.pagesSettings.*"});
Iterator i = users.iterator();
while(i.hasNext()) {
User user = (USer)users.next();
serletResponseStream.prinln("<tr>");
serletResponseStream.prinln("<td>"+user.getUserGroup().getName()+"</td>");
serletResponseStream.prinln("<td>"+user.getUserGroup().getId()+"</td>");
serletResponseStream.prinln("<td>"+((PageSettings)user.getUserSettings().get
PageSettings.get(0)).getParamName()+"</td>");
And so on and blah blah...
}
</code>
What do you all think about?
-
Dmitriy Kiriy
OILspace, 4, B. Spasskaya str. room 01, 107078 Moscow, Russia
P:+7 095 787 4700 F:+7 095 787 4701 E:[EMAIL PROTECTED]
OILspace - The resource enriched - www.oilspace.com
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