How to register multiple handlers for a Verticle?

[boro...@gmail.com]

Hello,

I'm trying to figure out how to register multiple handlers for a single Verticle address? 

According to the documentation:

Publish / subscribe messaging
The event bus supports publishing messages.
Messages are published to an address. Publishing means delivering the message to all handlers that are registered at that address.

I tried the following, but when I call publish from another Verticle the last handler (3) is always executed. 

public void start() {
    MessageConsumer<String> consumer = vertx.eventBus().consumer("MYADDRESS");
   
    consumer.handler(message -> System.out.println("(1) received a message"));
    consumer.handler(message -> System.out.println("(2) received a message"));
    consumer.handler(message -> System.out.println("(3) received a message"));
}

I understand that each handler I set below is overriding the previous one, but I just can't find and example online of adding multiple handlers. I'm sure I'm doing something fundamentally wrong, just need an example please.

Thanks,

p.s. I'm running vert.x 3.3.3

[Mumuney Abdlquadri]

I believe if your create different consumer objects per handler that should suffice.

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[boro...@gmail.com]

I knew it would be something simple :) 

I tried and it worked. Would be useful to have a small example in the docs for others though. 

Thanks a lot Mumuney.

On Wednesday, October 26, 2016 at 10:21:51 PM UTC-7, Mumuney Abdlquadri wrote:

I believe if your create different consumer objects per handler that should suffice.

On Thu, Oct 27, 2016 at 5:21 AM, <boro...@gmail.com> wrote:

Hello,

I'm trying to figure out how to register multiple handlers for a single Verticle address? 

According to the documentation:

Publish / subscribe messaging
The event bus supports publishing messages.
Messages are published to an address. Publishing means delivering the message to all handlers that are registered at that address.

I tried the following, but when I call publish from another Verticle the last handler (3) is always executed. 

public void start() {
    MessageConsumer<String> consumer = vertx.eventBus().consumer("MYADDRESS");
   
    consumer.handler(message -> System.out.println("(1) received a message"));
    consumer.handler(message -> System.out.println("(2) received a message"));
    consumer.handler(message -> System.out.println("(3) received a message"));
}

I understand that each handler I set below is overriding the previous one, but I just can't find and example online of adding multiple handlers. I'm sure I'm doing something fundamentally wrong, just need an example please.

Thanks,

p.s. I'm running vert.x 3.3.3

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[Mumuney Abdlquadri]

you are welcome.

you might have a point. so I made pull request to the examples repo.

https://github.com/vert-x3/vertx-examples/pull/162

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