11.3.1 Consuming Events 3.2.3

(Quick Reference) # 11.3.1 Consuming Events Version: 3.2.3 ## 11.3.1 Consuming Events There are several ways to consume an event. As mentioned previously services and controllers implement the Events trait. The `Events` trait provides several methods to register event consumers. For example:
    on("myEvent") {
        println "Event fired!"
    }
Note that if you wish a class (other than a controller or service) to be an event consumer you simply have to implement the `Events` trait and ensure the class is registered as a Spring bean. For example given the following class:
    import grails.events.*
    import javax.annotation.*

    class MyClass implements Events {

            @PostConstruct
            void init() {
                    on("myEvent") {
                        println "Event fired!"
                    }
            }
    }
You can override `doWithSpring` in your `Application` class to register it as a Spring bean (or annotate it with `Component`):
    Closure doWithSpring() {
            {->
                        myClass(MyClass)
            }
        }
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