Groovy: Set dynamic nested method using string as path - dynamic

Question

I have a path for an object within an object within an object and I want to set it using Groovy's dynamic abilities. Usually you can do so just by doing the following:
class Foo {
String bar
}
Foo foo = new Foo
foo."bar" = 'foobar'
That works OK. But what if you have nested objects? Something like:
class Foo {
Bar bar
}
class Bar {
String setMe
}
Now I want to use the dynamic setting, but
Foo foo = new Foo()
foo."bar.setMe" = 'This is the string I set into Bar'
Returns a MissingFieldException.
Any hints?
UPDATE: Thanks to Tim for pointing me in the right direction, the initial code on there works great at retrieving a property, but I need to set the value using the path string.
Here's what I came up with from the page Tim suggested:
def getProperty(object, String propertyPath) {
propertyPath.tokenize('.').inject object, {obj, prop ->
obj[prop]
}
}
void setProperty(Object object, String propertyPath, Object value) {
def pathElements = propertyPath.tokenize('.')
Object parent = getProperty(object, pathElements[0..-2].join('.'))
parent[pathElements[-1]] = value
}

Answer 1

Following works correctly.
foo."bar"."setMe" = 'This is the string I set into Bar';
Without getProperty overriding you can achieve the same result using "${}" syntax for GString as the below code demonstrates
class Baz {
String something
}
class Bar {
Baz baz
}
class Foo {
Bar bar
}
def foo = new Foo()
foo.bar = new Bar()
foo.bar.baz = new Baz()
def target = foo
def path = ["bar", "baz"]
for (value in path) {
target = target."${value}"
}
target."something" = "someValue"
println foo.bar.baz.something
final println prints "someValue" as expected