MessageSubscriberInterface
extends
MessageHandlerInterface
in
Handlers can implement this interface to handle multiple messages.
Tags
Table of Contents
Methods
- getHandledMessages() : iterable<string|int, mixed>
- Returns a list of messages to be handled.
Methods
getHandledMessages()
Returns a list of messages to be handled.
public
static getHandledMessages() : iterable<string|int, mixed>
It returns a list of messages like in the following example:
yield MyMessage::class;
It can also change the priority per classes.
yield FirstMessage::class => ['priority' => 0];
yield SecondMessage::class => ['priority' => -10];
It can also specify a method, a priority, a bus and/or a transport per message:
yield FirstMessage::class => ['method' => 'firstMessageMethod'];
yield SecondMessage::class => [
'method' => 'secondMessageMethod',
'priority' => 20,
'bus' => 'my_bus_name',
'from_transport' => 'your_transport_name',
];
The benefit of using yield instead of returning an array is that you can yield multiple times the
same key and therefore subscribe to the same message multiple times with different options.
The __invoke method of the handler will be called as usual with the message to handle.