ExpandoMetaClass - Borrowing Methods from other classes
With ExpandoMetaClass you can also use Groovy's method pointer syntax to borrow methods from other classes. For example:
class Person {
String name
}
class MortgageLender {
def borrowMoney() {
"buy house"
}
}
def lender = new MortgageLender()
Person.metaClass.buyHouse = lender.&borrowMoney
def p = new Person()
assert "buy house" == p.buyHouse()
