Re: Is Double Dispatch really object-oriented?

"robb" <robb@xxxxxxx> writes:
I'm preparing a paper on this topic (I believe it isn't - that it
breaks encapsulation, for example). I thought I'd see if anyone has
any thoughts on this.

Double dispatch is just a technique to work around the
limitations of languages that don't support multimethods. Object
orientation does not require dispatching solely on a single type. The
first standardized OO language was Common Lisp and its object system,
CLOS, supports multiple dispatch directly.

Regards,

Patrick

------------------------------------------------------------------------
S P Engineering, Inc. | Large scale, mission-critical, distributed OO
| systems design and implementation.
pjm@xxxxxxx | (C++, Java, Common Lisp, Jini, middleware, SOA)
.

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