> On 23 Mar 2020, at 12:52, William Brown <[email protected]> wrote:
> 
> 
> 
>> On 21 Mar 2020, at 01:37, thierry bordaz <[email protected]> wrote:
>> 
>> Hi William,
>> 
>> I only have a vague knowledge of syntaxes/MR.
>> 
>> Each syntax is a plugin. Its init function registers for a given set of OIDs 
>> the matching rules (compare, order, substring) than handle that syntax 
>> (calls slapi_matchingrule_register).
>> There is a special collation plugin that does the same for supported 
>> language.
>> So a entryUUID syntax should define its matching rules callbacks and 
>> register them for supported OID.
>> 
>> The MR are called during filter evaluation, both at candidate list built and 
>> at filter match.
>> On write path, they are called to generate the index keys.
>> 
>> I think there is a slight difference between syntaxes plugins and collation 
>> plugin in the way they are selected to apply for a given attribute.
>> syntaxes provide the set of supported OIDs while for collation you need to 
>> call the index to know if it supports the OID.
>> 
>> All of this are general ideas around syntax/MR and I think they are quite 
>> correct.
> 
> AHhhh, some of these things have helped me make sense of some of the plugin 
> handle names and such. Thank you! I might put in a work-in-progress PR later 
> of my work on entryuuid. :) 
> 
> Thanks Thierry! 

As a follow up, thanks for the advice - I can now register a stub syntax plugin 
into the server (in rust) :D 

So I'll be doing more to get this working in the coming days. Thanks again for 
your advice! 


> 
> 
> 
>> 
>> best regards
>> thierry
>> 
>> 
>> On 3/20/20 4:37 AM, William Brown wrote:
>>> Hi there,
>>> 
>>> I'm looking to add the syntaxes to handle entryUUID properly, because they 
>>> have a different format to nsUniqueId. Thinking that I need to look at the 
>>> plugins under ldap/servers/plugins/syntaxes/, but it would be good to have 
>>> some extra insight about the plugin hooks. Should I look at the old plugin 
>>> guide? Or is there some extra info I can get from somewhere?
>>> 
>>> Thanks!
>>> 
>>> —
>>> Sincerely,
>>> 
>>> William Brown
>>> 
>>> Senior Software Engineer, 389 Directory Server
>>> SUSE Labs
>>> _______________________________________________
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>> 
> 
> —
> Sincerely,
> 
> William Brown
> 
> Senior Software Engineer, 389 Directory Server
> SUSE Labs
> _______________________________________________
> 389-devel mailing list -- [email protected]
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> Fedora Code of Conduct: 
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—
Sincerely,

William Brown

Senior Software Engineer, 389 Directory Server
SUSE Labs
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