[Zope3-dev] Index integration

[Dieter Maurer]

Jim Fulton wrote at 2005-2-14 10:20 -0500:
>Dieter Maurer wrote:
> ...
>> I propose as alternative a new concept "DependentObject", represented
>> by the interface "IDependentObject". A "dependent object"
>> is part of a primary object and is indexed under this primary
>> object. Thus, a "dependent object" can provide values for
>> the indexing of its primary object but is not itself indexed.
>> 
>> "IDependentObject" has a single method (or attribute, if you prefer):
>> 'getPrimaryObject' returning the primary.
>> The catalog determines the uid for an indexing request for "o"
>> from its primary object, if "o" is a dependent object.
>> However, the set of indexes that need an update is determined
>> from "o"'s interfaces and "o" provides the values for the reindexing.
>> 
>> This way, there is no need for interface specific "Changed" events.
>
>I'm not sure I follow this.  Are you saying that you'd generate
>an ObjectModified event for the dependent object and then decide the
>indexes to update according to the type of the dependent object?

Indeed.

But the object for which the indexes are updated is
is not the dependent object but its primary object.

Dependent objects are not catalogued (indexed) by themselves.
With respect to cataloguing they behave as part of their
primary object.

-- 
Dieter