On 13 October 2010 11:36, Simone Tripodi <simone.trip...@gmail.com> wrote: > Hi guys, > and sorry I'm late but there's always the timezone/working time delay :P > > The mix with T/E is explained because CursorableLinkedList implements > List, where there are 2 different signatures of toArray() method, the > one that uses Object[] and the other one that interests us[1]. That's > why I didn't use T directly.
I see, so E must be convertible from T. > The mix with T/Object is my fault, it will be fixed ASAP. > Agreed that since the interface declares List<E>, we should use E as > well, it will be fixed ASAP too. > > Thanks a lot for reviewing it, It was Eclipse that pointed out the unchecked casts. I was trying to understand how to fix them. But I now see from j.u.List Javadoc that runtime problems are expected - if you create a List<Integer> and call toArray(new String[0]) you will get an ArrayStoreException. > Simo > > [1] > http://download.oracle.com/javase/6/docs/api/java/util/List.html#toArray(T[]) > > http://people.apache.org/~simonetripodi/ > http://www.99soft.org/ > > > > On Wed, Oct 13, 2010 at 2:54 AM, sebb <seb...@gmail.com> wrote: >> On 13 October 2010 01:15, Paul Benedict <pbened...@apache.org> wrote: >>> The whole <E> convention comes from java.util where there are >>> "elements" of a collection. >> >> Yes, I know. >> >>> I don't like to mix things. I think type T >>> would be find everywhere unless you have multiple types and need a >>> memorable letter. >> >> As far as I can tell, the collection only supports a single type, >> similar to List<E>, and one would not expect to see other types used >> in such a List class. >> >> But I could be wrong which is why I was asking. >> >> Since j.u.List uses <E>, I think it would make sense use <E> here as well. >> >>> On Tue, Oct 12, 2010 at 6:21 PM, sebb <seb...@gmail.com> wrote: >>>> CursorableLinkedList is based on the type T, and removeFirst() returns >>>> T, yet getFirst() returns Object. >>>> >>>> Also, toArray() returns Object[] or E[]. >>>> >>>> Not sure I follow why there is this mixture? >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org >>>> For additional commands, e-mail: dev-h...@commons.apache.org >>>> >>>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org >>> For additional commands, e-mail: dev-h...@commons.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org >> For additional commands, e-mail: dev-h...@commons.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
