Re: [Phptmapi-discuss] Construct::equals() and Construct::hashCode()

[Johannes S. <top...@fr...>]

Hi there,
there is also the idea of Lars Heuer to just abolish equals() and 
hashCode(). Comparison of TM constructs as well as comparison of objects 
is then delegated to implementors.

Johannes

Johannes Schmidt schrieb:
> Hi all,
> as PHPTMAPI is aligned to TMAPI I now wanted to update 
> Construct::equals() and Construct::hashCode() according to updated 
> semantics of equals() and hashCode() in final RC of TMAPI 2.0 [1]. Well, 
> I am not really satisfied with this changing but missed the discussion 
> on TMAPI mailing list. In final RC the semantics of equals() has changed 
> from comparing the identity of TM CONSTRUCTS towards comparing the 
> identity of (Java) OBJECTS. This is significantly different. Identity of 
> TM constructs is "materialized" by TM system specific arbitrary 
> identifiers [2]. IMO in federation of different topic maps from 
> different TM systems processing of such construct identifiers must be 
> omitted; focus is on processing the identity of subjects.
> To be honest: I'd like to preserve current semantics of PHPTMAPI 
> equals(). Implementors will know how to identify PHP objects [3]. Thoughts?
>
> Best regards,
> Johannes
>
>
> [1] 
> http://sourceforge.net/mailarchive/forum.php?thread_name=1521353800.20100113175400%40semagia.com&forum_name=tmapi-discuss
> [2] http://phptmapi.sourceforge.net/2.0/docs/core/Construct.html#getId
> [3] http://www.php.net/manual/en/language.oop5.object-comparison.php
>
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