Hi Yes you need to provide a scheduler if you want it to automatic purge and timeout entries.
I have improved the source code to mandate a scheduler in the next release. https://issues.apache.org/jira/browse/CAMEL-3416 On Thu, Dec 9, 2010 at 12:51 AM, yli <yiminglearnca...@gmail.com> wrote: > > Hi All, > Recently I have this problem, which really making me confused. > In my code, I try to have a map where the items would expire after > sometime and be deleted automatically, so I decided to use > DefualtTimeoutMap. Here is how I initialize it: > "TimeoutMap myMap = new DefaultTimeoutMap(null, 1*60*1000L);" > As you can see I didn't passed in an instance of > ScheduledExecutorService class(the first argument is null), because I > thought since we have such a constructor, the ScheduledExecutorService > should be taken care of behind the scene... > However, as it turned out, the "run" and "purge" methods didn't get > executed, and the items in the map didn't get deleted after expired. > Then I looked at the source code of DefaultTimeoutMap class, I found: > ... > public DefaultTimeoutMap(ScheduledExecutorService executor, long > requestMapPollTimeMillis, boolean useLock) { > this.executor = executor; > this.purgePollTime = requestMapPollTimeMillis; > this.useLock = useLock; > schedulePoll(); > } > > protected void schedulePoll() { > if (executor != null) { > executor.scheduleWithFixedDelay(this, initialDelay, > purgePollTime, TimeUnit.MILLISECONDS); > } > } > ... > It looks like if executor is null, the scheduling won't start, in other > words, we have to have a scheduler, is that right? If so, why do we have a > constructor that allows null as scheduler? > > Please correct me if there is anything I misunderstood. Thank you very > much. > > > -- > View this message in context: > http://camel.465427.n5.nabble.com/Do-I-have-to-give-a-ScheduledExecutorService-instance-when-initializing-DefualtTimeoutMap-tp3298252p3298252.html > Sent from the Camel - Users mailing list archive at Nabble.com. > -- Claus Ibsen ----------------- FuseSource Email: cib...@fusesource.com Web: http://fusesource.com Twitter: davsclaus Blog: http://davsclaus.blogspot.com/ Author of Camel in Action: http://www.manning.com/ibsen/
