CODEWITHSUNDEEP
inheritancegrailsservice
pri_dev
pri_dev

Reputation: 11645

extending a plugin service in grails


I am extending the MarkupSanitizerService from the sanitizer plugin. Can I just override one of the functions - getSanitizer() which has my custome implementation or do I need to copy over the other functions in my service class from the MarkupSanitizerService ?

Thanks in advance..

Upvotes: 0

Views: 938

Answers (2)

Daniel Bower
Daniel Bower

Reputation: 749

Another route to take would be to extend the Service, and then override the name of the sanitizer service in your grails-app/config/spring/resources.groovy That should have the desired effect.

Upvotes: 1

nate_weldon
nate_weldon

Reputation: 2349

grail inheritance works the same as java inheritance. You just need to supply your new function with the custom implementation

or you can get fancy and use metaprogramming.

a good article on metaprogramming in groovy

http://www.ibm.com/developerworks/java/library/j-pg06239/index.html

Metaprogramming is the writing of computer programs that write or manipulate other programs (or themselves) as their data, or that do part of the work at compile time that would otherwise be done at runtime. In many cases, this allows programmers to get more done in the same amount of time as they would take to write all the code manually, or it gives programs greater flexibility to efficiently handle new situations without recompilation

groovy supplies 2 types of metaprogramming techniques: compile time metaprogramming, and runtime metaprogramming.

you can do something like the following in boot strap calls that should work

def grailsApplication

def init = { servletContext ->
    soSomethingWithAService()
}

def destroy = {
}

private def doSomethingWithAService() {
grailsApplication.serviceClasses.each { serviceClass ->
       // do something
        def result 
        return result

    }
    }
}
}

Upvotes: 1

Related Questions