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Re: Re: Discover data patterns or Create data patterns?

  • From: "Dimitre Novatchev" <dnovatchev@g...>
  • To: "Rick Jelliffe" <rjelliffe@a...>
  • Date: Mon, 22 Sep 2008 09:53:11 -0700

Re:  Re: Discover data patterns or Create data patterns?
Thank you for the pointer. It is an interesting read.

I couldn't see any mention of implementing generics type constraints
in Java. In addition to type nesting, I also used type constraints in
my C# implementation. Of course, a more weakly-typed implementation
should be possible.


On Mon, Sep 22, 2008 at 7:36 AM, Rick Jelliffe <rjelliffe@a...> wrote:
> Dimitre Novatchev wrote:
>> e achieved with C++ generics, which is
>> supported entirely at compile time. As for Java, I am not even aware
>> if it has any generics support at all.
> Java has had generics since 2004.
> However, they work with type erasure, so the <T> parameter information is
> not available at runtime directly from the code: i.e. generics really are
> type-safe macros. There is only one version of the compiled class generated,
> not a separate version for each <T>.  However, of course,  types can be
>  ascertained by reflection on actual objects at runtime.  And you can have
> wildcard references.
> Good article at
> http://www.ibm.com/developerworks/java/library/j-jtp01255.html
> Cheers
> Rick

Dimitre Novatchev
Truly great madness cannot be achieved without significant intelligence.
To invent, you need a good imagination and a pile of junk
Never fight an inanimate object
You've achieved success in your field when you don't know whether what
you're doing is work or play

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