Groovy property iteration

I haven’t yet found a good approach for excluding the read-only properties (i.e., metaClass, class), but if you want to set the value of all properties in the Foo instance that are also in the Foo2 instance you could do the following.

class Foo {
    def feck = "fe"
    def arse = "ar"
    def drink = "dr"    
}

class Foo2 {

    def feck = "fe2"
    def arse = "ar2"
    def drink = "dr2"
}


def f = new Foo()
def f2 = new Foo2()


f2.properties.each { prop, val ->
    if(prop in ["metaClass","class"]) return
    if(f.hasProperty(prop)) f[prop] = val
}

assert f.feck == "fe2"
assert f.arse == "ar2"
assert f.drink == "dr2"