[Glass] GsQuery and message sends ...

[Dale Henrichs via Glass]

No documentation for the selector pathterm and no docs for modification 
tracking.

We are planning to improve the modification tracking support so that it 
isn't necessary to build a custom tracker as is done in the example ... 
and then write documentation.

I think that for simple dependencies as illustrated in the example you 
can manage the updates, but if the selector is is subject to complex 
calculations it can be a challenge to to ensure that the index is 
updated correctly ..

Dale

On 05/24/2016 01:21 PM, Marten Feldtmann wrote:
>
> Thats fine ! Is this anywhere documented (at least in the Programming 
> Guide ?).
>
> Marten
>
>> Dale Henrichs via Glass <glass at lists.gemtalksystems.com> hat am 24. 
>> Mai 2016 um 20:15 geschrieben:
>>
>> Marten,
>>
>> We do have selector-based path terms that can be used in a query:
>>
>>   'each.#foo < 1'
>>
>> where #foo indicates that a message should be sent instead of 
>> directly accessing an instance variable. The drawback of a 
>> selector-based path term is that GemStone cannot do automatic index 
>> maintenance.
>
>

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