OK, how about a vote on this.
I see several ways of implementing the front end to this:
1. Declarative: On construction of a Document, you declare the Field to
be Lazy.
2. Implicit: All fields are Lazy
3. Size of Field. Pass into IndexReader.document() the size of the
field above which it will be lazily loaded. A default size can also be
used.
4. By Field name. Pass in the names of the Fields that you want loaded
lazily.
Thanks,
Grant
Doug Cutting wrote:
Grant Ingersoll wrote:
My main concern is the semantics of the fieldsStream and whether that
would be closed behind the back of the LazyField implementation. My
understanding is that as long as the IndexReader is open, this stream
should also be open. Is that correct? What am I forgetting about?
You need to make sure that access to the stream is synchronized, so
that one thread doesn't move the file pointer while someone else is
reading. You could use a cloned stream in a ThreadLocal to avoid
contention.
Doug
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Grant Ingersoll
Sr. Software Engineer
Center for Natural Language Processing
Syracuse University
School of Information Studies
335 Hinds Hall
Syracuse, NY 13244
http://www.cnlp.org
Voice: 315-443-5484
Fax: 315-443-6886
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