Groovy: Overloading [] and dot .

class Konf {

    // Initializing overloader
    static {

        // . read
        Konf.metaClass.getProperty = { String prop ->
            println "getProp $prop"

            this."${prop}"        

        }

        // . assignment
        Konf.metaClass.setProperty = { String prop, val ->
            println "setProp $prop $val"            

            this.metaClass."${prop}" = val
        }
    }

    // [] read
    def getAt( String key ) {
        println 'getAt'
        this."${key}"    

    }

    // [] set
    def putAt( String key, val ) {
        println "putAt $key $val" 

        this.metaClass."${key}" = val
    }

    def clear() {

    }
}