Answering my own question:
It can be done if the metaClass is an ExpandoMetaClass. Like this:
expandoMetaClass.registerInstanceMethod(
new TransformMetaMethod(originalMetaMethod) {
@Override
Object invoke(Object object, Object[] arguments) {
println "Done! Method overriden!"
super.invoke(object, arguments)
}
}
)
Anyway, in grails it didn't work (it kept calling the original method). Had
to use an AST.
Regards,
Douglas
Em qui, 23 de fev de 2017 às 16:12, Douglas Mendes <douglas.men...@gmail.com>
escreveu:
Hi.
How can I properly override a method given a java.lang.reflect.Method and
its respective MetaClass?
I know that can be achieved by overriding the MetaClass's *invokeMethod *but
I can't do that (even if I could, would like to avoid).
Pseudocode:
*void doAnOverride(MetaClass metaClass, Method method) {*
* metaClass."${method.name <http://method.name>}" = { args ->*
* println "done"*
* }*
*}*
Thanks,
Douglas
