CODEWITHSUNDEEP
groovymetaclass
Phil
Phil

Reputation: 909

How do I reference the GroovyObject instance from MetaClass methods in Groovy?

This is a contrived example of what I want to do, but minimally expresses the behavior desired. I want to reference the instance of the object on which the property access is being invoked. I tried 'this' first, but that refers to the enclosing class rather than either the MetaClass or the String instance. 

String.metaClass.propertyMissing = { String name ->
    'I do not exist, but my name is ' + <the String instance> + '.' + $name
}

Upvotes: 14

Views: 1640

Answers (1)

chanwit
chanwit

Reputation: 3214

You can refer to the object with "delegate":

String.metaClass.propertyMissing = { String name ->
    "I do not exist, but my name is $delegate.$name"
}


println "a".me

Upvotes: 19

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