[hibernate-dev] BoostStrategy issues

[Sanne Grinovero]

Ah yes thanks I found it.
It's only being used by the String2FieldBridgeAdaptor ? So boosting on
other types is ignored?

Yes embedding the functonality in existing @Boost was something we had
proposed on mailing list, but it probably didn't got much attention.

What I recall is something like this:

@Boost(float staticBoost, BoostStrategy dynamicStrategy)
and have a default implementation for dynamicStrategy to say "return 1".

should also be backwards compatible that way.
WDYT?

2009/12/4 Emmanuel Bernard <emmanuel at hibernate.org>:
> The altered boost is passed to the bridge as one of the LuceneOptions.
>
> On 4 déc. 09, at 16:36, Sanne Grinovero wrote:
>
>> Hardy,
>> I don't think setting @DynamicBoost on a field will affect the score
>> of that field, but rather receive that object as a parameter for the
>> function and affect the whole document scoring.
>> That's about the current implementation; I'm still unsure that's
>> possible to do differently.
>>
>> 2009/12/4 Hardy Ferentschik <hibernate at ferentschik.de>:
>>>
>>> Hi,
>>>
>>> I am not quite sure I follow. Why fieldname? And do you mean Lucene
>>> Document field name or
>>> a entity field name?
>>>
>>> I think originally we discussed defineBoost(String fieldName, Object
>>> value), but decided that
>>> the fieldName parameter was not needed.
>>>
>>> You can place the @DynamicBoost annotation on class or field level. On
>>> class level you define a
>>> dynamic boost for the whole entity and on field level just for this
>>> field.
>>> Do you want to be able
>>> to place a @DynamicBoost on class level and call for each indexed field
>>> defineBoost(String fieldName, Object value),
>>> where fieldName would be the current index field name and value the
>>> indexed entity?
>>>
>>> One thing we have not done though is to add @DynamicBoost to @Field.
>>> Right
>>> now you can only
>>> specify @DynamicBoost directly on a field and the dynamic boost will
>>> apply
>>> to all @Field annotations defined
>>> on this field.
>>>
>>> --Hardy
>>>
>>> On Fri, 04 Dec 2009 09:44:30 -0300, Emmanuel Bernard
>>> <emmanuel at hibernate.org> wrote:
>>>
>>>> I think the BoostStrategy interface is not right.
>>>> You can't adjust the boost strategy according to the field name and I
>>>> think that's important (assuming dynamic boosting is used).
>>>>
>>>> We probably should rework it to do
>>>>
>>>> interface BoostStrategy {
>>>>   void defineBoost(String fieldName, Object value);
>>>> }
>>>>
>>>> WDYT?
>>>> _______________________________________________
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>>>> hibernate-dev at lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/hibernate-dev
>>>
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>
>