lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Wei Wang <welshw...@gmail.com>
Subject Re: Reuse Document
Date Sun, 07 Apr 2013 16:36:36 GMT
As long as it is cheap to create a Document object, it would be fine. I
guess we will probably always create new Document in such case.

On Sun, Apr 7, 2013 at 5:31 AM, Michael McCandless <
lucene@mikemccandless.com> wrote:

> Document doesn't have any way to clear all fields today ... but,
> likely this wouldn't really buy you much performance if it did vs just
> creating a new Document when the fields changed.
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Sun, Apr 7, 2013 at 2:41 AM, Wei Wang <welshwang@gmail.com> wrote:
> > Lucene encourages to re-use Document by setting new values for Fields
> > contained within a Document object. This assumes there is no change to
> the
> > number and types of Fields contained in a Document object during
> indexing.
> >
> > If the number and types of Fields contained in a Document object changes
> > from time to time, is it possible to remove all Field at once using
> > function similar to clear() for Collection object? In this way we can at
> > least reuse the Document object. It is inconvenient to use removeField()
> > and removeFields() since it requires enumerating field names.
> >
> > Thanks.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message