[X] Require the jdo implementation to return a read-only reference to
the underlying implementation that will continue to track
modifications made to the Set of groups.
+ requires the Set to be the same reference after clearGroups()
Quoting Craig L Russell <[EMAIL PROTECTED]>:
> Javadogs,
>
> During testing of FetchPlan, Ilan Kirsh discovered that the jdo
> specification doesn't specify whether getGroups returns a read-only
> copy of the set of fetch groups or can return a read-only reference
> to the actual set of fetch groups. [The specification does require
> returning a read-only Set.]
>
> The TCK as it was written requires a read-only reference, not a copy.
>
> This can result in non-portable behavior, if the application code
> expects a "live" reference instead of a copy. The TCK currently has
> the following code, which depends on the jdo implementation returning
> a "live" reference:
>
> public void checkRemoveGroup() {
> Set expectedGroups = new HashSet();
> FetchPlan fp = getPM().getFetchPlan();
> Collection groups = fp.getGroups(); // this assumes that
> groups is updated by the following line
> fp.removeGroup("default");
> if (!setEquals(expectedGroups, groups)) {
> failCompare(
> "checkRemoveGroup(): wrong getGroups() " +
> "after removeGroup.",
> expectedGroups, groups);
> }
> cleanupPM();
> }
>
> Please advise:
>
> [ ] Leave it alone.
>
> [ ] Update the specification to note that getGroups returns a Set
> that might change if the underlying Set of groups changes (via
> addGroup, addGroups, removeGroup, removeGroups, clearGroups).
>
> [ ] Require the jdo implementation to return a read-only reference to
> the underlying implementation that will continue to track
> modifications made to the Set of groups.
>
> [ ] Require the jdo implementation to return a read-only copy of the
> underlying Set of groups as it exists at the time of the call.
>
> Thanks,
>
> Craig
>
> Craig Russell
> Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
> 408 276-5638 mailto:[EMAIL PROTECTED]
> P.S. A good JDO? O, Gasp!
>
>
