Vertx best practices?

gal.ch...@web-pick.com

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Oct 13, 2016, 3:49:27 AM10/13/16

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Hello,

I have a Vertx java application consisting of 7 Verticles.

I need to access the event bus from all of the Verticles, a lot of the times from a static function.

to do so, today, when a Verticle starts, we call a static function which stores the Vertx object in a static field,

because of the class loader isolation, we do this in all 7 verticles.

It works, but it looks awful, every time we want to access the event bus, we use VertxStatic.getVertx().eventBus().

I wanted to ask if there is a more elegant solution you guys are using.

Thanks,

Gal.

Clement Escoffier

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Oct 13, 2016, 4:19:14 AM10/13/16

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Hi,

It’s probably a stupid idea but what about passing the vertx object or the eventbus object as parameter of your static function ?

Clement

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Jochen Mader

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Oct 13, 2016, 4:30:35 AM10/13/16

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I don't really get the problem.

Why do you have to access the eventbus in that way?

Do you have a code sample for us so we can see what you are doing?

2016-10-13 10:19 GMT+02:00 Clement Escoffier <clement....@gmail.com>:

Hi,

It’s probably a stupid idea but what about passing the vertx object or the eventbus object as parameter of your static function ?

Clement

On 13 Oct 2016, at 09:49, gal.ch...@web-pick.com wrote:

Hello,

I have a Vertx java application consisting of 7 Verticles.

I need to access the event bus from all of the Verticles, a lot of the times from a static function.

to do so, today, when a Verticle starts, we call a static function which stores the Vertx object in a static field,
because of the class loader isolation, we do this in all 7 verticles.

It works, but it looks awful, every time we want to access the event bus, we use VertxStatic.getVertx().eventBus().

I wanted to ask if there is a more elegant solution you guys are using.

Thanks,
Gal.

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Jez P

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Oct 13, 2016, 5:37:42 AM10/13/16

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Every verticle has a reference to the vertx object anyway, so why not just use that?

Jez P

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Oct 13, 2016, 5:39:05 AM10/13/16

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Ah wait, you're using a static function? In which case I would either make the vertx or the eventbus a parameter of that function. The point of making a function static is surely to avoid using state.

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