The "split map" concept is that of an object that implements the Put and Get interfaces, with differing generic types. This is like a pre-generics Map whose input key/value constraints are different than its output key/value constraints. While it would be possible to declare a "split map" with matching input/output key/value constraints, this would be a Map and would therefore make little sense (any Commons Collections Map implementation will also implement Put and Get with matching generic parameters).

The following decorators are provided:

• Transformed - transforms each element added