[ALL] let's think about Query Language for 2.0

[Ruslan Zasukhin]

on 5/23/03 1:52 PM, Andreas Grosam at agrosam at computerworks.ch wrote:

> Predicate
> A Predicate is a function object which return type is a boolean. (see
> also description above)
> The predicate is realized as a tree structure, enabling it to compose
> complex predicates. Class Predicate
> is a non-abstract but is not a concrete predicate - it serves as a base
> class for predicates and building the
> tree structure.
> There are several concrete predicates: equal, less_than, greater_than,
> etc. For class Predicate there are
> global operator defined: && and ||.

Correct,

We have had this in 1.x
And very improve for 2.0.

In  fact we have hundreds of small Node classes for each operation.


-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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