Hi Howard I appreciate that :-) thanks
TIA Leo On Tue, Jul 9, 2013 at 3:37 PM, Howard W. Smith, Jr. <[email protected]> wrote: > forgot to add... i am using TomEE/ActiveMQ to do JMS (1.0) stuff (learned > the code via Tomee's 'simple MDB' example), and the 'stuff' works great! > > my app is doing simple MDB stuff, triggered by @Schedule methods on > @Singleton @Lock(WRITE) bean, which references @ApplicationScoped CDI bean > to update application-scope/wide properties/variables, etc... > > and as I learned from David Blevins, I can make the @Schedule more > 'aggressive' (@Schedule ever 2 minutes and/or less). i have @Schedule > running every 1 or 2 minutes, and @Schedule running every 30 seconds (I > think) to check @ApplicationScoped or @Singleton bean; I forgot the details > (you know how we developers forget some stuff in the app/implementation > until we look at the code). > > just sharing that tidbit though... > > > > On Tue, Jul 9, 2013 at 2:29 PM, Leonardo K. Shikida <[email protected]>wrote: > >> Thanks Howard, I think you're right. >> >> I'll take that 2 cents :-) >> >> TIA >> >> Leo >> >> >> On Tue, Jul 9, 2013 at 3:25 PM, Howard W. Smith, Jr. >> <[email protected]> wrote: >> > Leonardo, you may want to revisit Java EE 6 tutorial. almost 2 years ago >> > (summer 2011), before I began coding Java EE, I studied Java EE 6 >> tutorial, >> > and since I been doing (minimal) Java EE 6 ever since, by looking at your >> > code, I will respond as follows (based on my learning): >> > >> > 1. I would never add @Startup on @Stateless, even though I've seen others >> > add @startup on@Singleton, and from what I thought/learned/read, >> @Singleton >> > is @Stateless, but I could be wrong. :) >> > >> > 2. I would never add or 'assume' that @PostConstruct should be added to >> > @Stateless. per my Java EE 6 tutorial learning-and-understanding of >> > @PostConstruct, I should only add @PostConstruct on managed beans >> > (@RequestScoped, @SessionScoped, etc...) >> > >> > my 'two' cents... >> > >> > Oh, I have learned from TomEE committers that I can/should use @Singleton >> > @Lock(Read or Write), and I can add @Schedule methods to @Singleton >> > bean(s). I am doing (all of) this in my app, using TomEE 1.6.0, and I am >> > very satisfied with the performance of the app. But I am not using >> > @Startup; i have an @ApplicationScoped CDI bean that is global to entire >> > app, all sessions, the @Singleton beans, etc... when TomEE starts my app, >> > @ApplicationScoped bean will be instantiated and I can add @PostConstruct >> > to this CDI @ApplicationScoped bean to do whatever I want to do when my >> app >> > 'starts'...so why do I need @Startup? don't need it and I don't use it. >> > >> > >> > >> > >> > On Tue, Jul 9, 2013 at 1:19 PM, Leonardo K. Shikida <[email protected] >> >wrote: >> > >> >> learning something new everyday ;-) >> >> >> >> [] >> >> >> >> Leo >> >> >> >> >> >> On Tue, Jul 9, 2013 at 2:06 PM, Romain Manni-Bucau >> >> <[email protected]> wrote: >> >> > @Startup on stateless doesnt mean anything in the spec IIRC ;) >> >> > Le 9 juil. 2013 19:04, "Leonardo K. Shikida" <[email protected]> a >> >> écrit : >> >> > >> >> >> No, it's a regular @Stateless >> >> >> >> >> >> @Stateless >> >> >> @Startup >> >> >> public class JmsWorkerEJB {...} >> >> >> >> >> >> It has a method annotated with @Schedule that reads from a JMS queue. >> >> >> >> >> >> In the worst case, since @PostConstruct is being called, I could >> >> >> schedule from there instead, but does not seems an elegant way to >> deal >> >> >> with that :-) >> >> >> >> >> >> [] >> >> >> >> >> >> Leo >> >> >> >> >> >> >> >> >> On Tue, Jul 9, 2013 at 1:56 PM, Romain Manni-Bucau >> >> >> <[email protected]> wrote: >> >> >> > Found in code this time ;) >> >> >> > >> >> >> > Is your ejb a singleton? Did you set @lock(read)? >> >> >> > >> >> >> > Working thread can be done with @Asynchronous in javaee 6 >> >> >> > Le 9 juil. 2013 18:52, "Leonardo K. Shikida" <[email protected]> a >> >> >> écrit : >> >> >> > >> >> >> >> MinSize does instantiate these :-) >> >> >> >> >> >> >> >> Where did you find this parameter? >> >> >> >> >> >> >> >> But the method annotated with @Schedule is run only for one >> instance >> >> >> >> at a time. I thought it should run for all of them. >> >> >> >> >> >> >> >> How people usually implement the concept of working threads in >> EJB? >> >> >> >> Maybe I am trying to do this in the wrong way. >> >> >> >> >> >> >> >> TIA >> >> >> >> >> >> >> >> Leo >> >> >> >> >> >> >> >> >> >> >> >> On Tue, Jul 9, 2013 at 1:37 PM, Romain Manni-Bucau >> >> >> >> <[email protected]> wrote: >> >> >> >> > Did you try MinSize? >> >> >> >> > Le 9 juil. 2013 18:16, "Leonardo K. Shikida" <[email protected]> >> a >> >> >> >> écrit : >> >> >> >> > >> >> >> >> >> Hi Romain >> >> >> >> >> >> >> >> >> >> I've added to tomee.xml >> >> >> >> >> >> >> >> >> >> <Container id="foo" type="STATELESS"> >> >> >> >> >> PoolSize=10 >> >> >> >> >> </Container> >> >> >> >> >> >> >> >> >> >> but it didn't worked as I was expecting. >> >> >> >> >> >> >> >> >> >> I thought it would instantiate 10 instances. >> >> >> >> >> >> >> >> >> >> I've also added a sysout in the >> >> >> >> >> >> >> >> >> >> @PostConstruct >> >> >> >> >> public void init() { >> >> >> >> >> System.out.println("Hello "+this); >> >> >> >> >> >> >> >> >> >> I thought I'd have 10 lines in the first service, but there was >> >> only >> >> >> >> one. >> >> >> >> >> >> >> >> >> >> Do I have to set somewhere (somehow) that my bean is using this >> >> >> >> >> container or tomee assumes it's the default configuration for >> all >> >> >> >> >> stateless beans? >> >> >> >> >> >> >> >> >> >> TIA >> >> >> >> >> >> >> >> >> >> Leo >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> On Tue, Jul 9, 2013 at 12:29 PM, Romain Manni-Bucau >> >> >> >> >> <[email protected]> wrote: >> >> >> >> >> > Hi >> >> >> >> >> > >> >> >> >> >> > The basic conf is here >> >> >> >> >> http://tomee.apache.org/containers-and-resources.html >> >> >> >> >> > >> >> >> >> >> > You can set PoolSize (MaxSize) but MinSize too >> >> >> >> >> > Le 9 juil. 2013 14:45, "Leonardo K. Shikida" < >> [email protected]> >> >> a >> >> >> >> >> écrit : >> >> >> >> >> > >> >> >> >> >> >> Hi >> >> >> >> >> >> >> >> >> >> >> >> I am using a stateless bean to consume from a jms queue >> >> >> periodically >> >> >> >> >> >> (@Schedule). It's started with the container (@Startup). Is >> >> there >> >> >> any >> >> >> >> >> >> way to configure somewhere the initial number of instances >> for >> >> >> this >> >> >> >> >> >> specific bean? >> >> >> >> >> >> >> >> >> >> >> >> TIA >> >> >> >> >> >> >> >> >> >> >> >> Leo >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>
