Scheme -> Clojure: multimethods with predicates in the methods?

I\'m converting some Scheme code to Clojure. The original uses a dispatching pattern that\'s very similar to multimethods, but with an inverted approach to the matching predicates.For example, there a

Looping through args of macro

I am trying to write a macro in Clojure that allows for evaluation of a series of simple \"def\" expressions. I am a n00b when it comes to macros. The idea is that

Clojure multimethod on class OR keyword

Suppose I have this multimethod (defmulti m (fn [v] [(:type v)])) (defmethod m [Object] [k] (prn \"Object\"))

Is a self-recursive clojure multimethod a good design for a nested classification problem?

I have a large sequence of data-maps and each map needs to be classified in a nested fashion. i.e. a given item may be an A or a B (as determined by a function), if it is a B then it may be a C or a

Any good multimethod implementation for Java?

I am wondering if there is any reasonably good multimethod implemen开发者_如何学Ctation/library for Java like Lisp has.

Can I use Clojure multimethods only on Java classes?

I am a bit confused about whether I can only use clojure multimethods on clojure structures represented by Java classes, or can I base mu开发者_JAVA技巧ltimethods to dispatch on structs or other prope

Can I use Clojure's derive to create a hierarchy of my defrecord class types?

I would l开发者_StackOverflowike to do something like: (defrecord Base []) (defrecord Person []) (defrecord Animal [])

Multiple dispatch and multi-methods

What are they, what\'s the different between them? Many sources, l开发者_StackOverflowike Wikipedia, claim they\'re the same thing, but others explicitly say the opposite, like sbi in this question:

Defining Clojure multimethods

I have 开发者_如何学Cthe following in one namespace say shapes: (derive ::rect ::shape) (derive ::square ::rect)

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