[hibernate-issues] [Hibernate-JIRA] Commented: (HSEARCH-289) Check new Lucene Filter DocIdSet

[Sanne Grinovero (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31645#action_31645 ] 

Sanne Grinovero commented on HSEARCH-289:
-----------------------------------------

the Lucene DocIdSetIterator looks like perfect to build a highly efficient version of ChainedFilter:
it's possible to not iterate on the whole BitSet for all filters but only on the needed parts, meaning the filters are not going to
be asked for all values but only about those not already discarded by other filters.

This means that having the most expensive (performance wise) Filters last will be better than having them applied first (or the most restrictive first too), we should consider a way to track the order of declared filters.

> Check new Lucene Filter DocIdSet
> --------------------------------
>
>                 Key: HSEARCH-289
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-289
>             Project: Hibernate Search
>          Issue Type: Task
>            Reporter: Emmanuel Bernard
>            Assignee: Sanne Grinovero
>             Fix For: 3.1.0.CR1
>
>
> This might affect the internal code, the documentation and the book.

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