Java Event mechansim

The project is to build event mechanism (From scratch or utilize existing open-source project) with the following functions:

* The events should be defined in a central place (i.e. central event list)

* Event should be raised from a class with a reference to relevant object (Event relevant data).

* Objects can listen on events (register on event). The registration should be either in the listener class or in central place, where all events & listeners are mapped.

* An object can listen to more than one event.

* The mechanism should be able to invoke the listeners with the corresponding event name + relevant data object.

* The listener should have a basic life-cycle, that indicates the listener completion status.

Each life cycle status is actually an Event the will trigger a corresponding action:

- OK (do nothing)

- Retry (Should re-invoke the listener up to 4 times)

- Failed (Log failure)

* Event invocation should be decoupled and asynchronous.

The solution should be *Simple*, scalable & robust.

The mechanism will be used in the following environment:

JDK 6, Ubuntu, Tomcat 6

Habilidades: J2EE, Java

Veja mais: failed registration, java event mechanism, mechanism, listener, java tomcat, java ee, Basic java, open source project java, basic project java, registration completion, java simple class, event project, event registration open source, java data project, java project class, project class register, events registration open source, listen ubuntu, tomcat log java, open source event registration, java tomcat log, event solution, basic java project, simple list java, java class project

Acerca do Empregador:
( 31 comentários ) Ramat Gan, Israel

ID do Projeto: #552848

Concedido a:


Hi! Please check you PMB.

$100 USD em 3 dias
(4 Comentários)

13 freelancers estão ofertando em média $175 para esse trabalho


Hi, I am Arnold, sales manager of distibuted development team. Most of the team is situated in Kaluga city, Russia. We're working on J2ee/Java for several years. We are familiar with Tomcat server and we are able to Mais

$200 USD in 7 dias
(26 Comentários)

Hello, I am sending you my bid details via PMB.

$250 USD in 10 dias
(9 Comentários)

Hello sir, I have over 3 years of experience in java.I did several projects under my academic course.I hope I can do this job [url removed, login to view] for your reply. Thanks.

$100 USD in 2 dias
(27 Comentários)

Hi, I can do this project. Please see PM for more details.

$100 USD in 4 dias
(5 Comentários)

I can do it now.

$100 USD in 3 dias
(4 Comentários)

I am a developer based in Calgary, Canada with over 5 years of Java development experience. I can give you a better time estimate of how long this would take me if once I have more of the specifics and have seen the co Mais

$250 USD in 10 dias
(0 Comentários)

Please see PM

$200 USD in 5 dias
(1 Comentário)

Hi, i can do this job. please see the pmb.

$200 USD in 10 dias
(0 Comentários)

Hi friend, analyzed the requirement and need details from you which are mentioned in the PM. Please check the PM.

$250 USD in 15 dias
(0 Comentários)

Hello,I have a good skill at Java and ready to do your work.

$150 USD in 10 dias
(0 Comentários)

Hi I'm an experienced java programmer.I work a lot in swing so I know the event java mechanism very well.I can do this in few [url removed, login to view] you have questions please write me.Thanks.

$200 USD in 13 dias
(0 Comentários)

[url removed, login to view] some more elaborate idea about exact requirment.

$175 USD in 12 dias
(0 Comentários)