CODEWITHSUNDEEP
grails
Dónal
Dónal

Reputation: 187399

usage of GrailsApplicationAware

According to the docs the GrailsApplicationAware interface is a

Convenience interface that can be implemented by classes that are registered by plugins.

So presumably a Spring bean that implements this interface can use it to get an instance of GrailsApplication. But can other objects implement this interface for the same purpose? It's not clear to me what is meant by

classes that are registered by plugins

Upvotes: 0

Views: 800

Answers (1)

Ian Roberts
Ian Roberts

Reputation: 122414

It works the same as standard Spring interfaces such as ApplicationContextAware - any bean (whether implicitly registered as an artefact or explicitly registered in resources.xml, resources.groovy or a plugin's doWithSpring) that implements the interface will have its setGrailsApplication(GrailsApplication ga) method called automatically by the framework without needing to explicitly name it as a property or turn on autowiring.

For beans that are set up to do autowiring (e.g. Grails services) you don't need to implement GrailsApplicationAware, you only need to provide a setGrailsApplication method (which a Groovy property definition def grailsApplication will create for you) and it will be autowired because the GrailsApplication is registered as a bean named grailsApplication. Or of course you can inject the bean explicitly

doWithSpring = {
  myPluginBean(MyPluginBean) {
    grailsApplication = ref('grailsApplication')
  }
}

Upvotes: 4

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