GoogleQueryParser

[Eric Jain <Er...@isb-sib.ch>]

Has anyone written something like a GoogleQueryParser?

Such a parser would differ in the behavior of the default parser in the
following points:

- Default AND rather than OR.
- Treat a-b as "a-b" rather that a -b.
- Perhaps disallow ~.

I guess I could write my own QueryParser, just wanted to be sure it hasn't
been done already, especially as it seems to be something rather basic. Any
suggestions?

By the way, I was honestly surprised by the compactness of the indices
Lucene generates, as well its performance. I had always thought there was a
trade-off between good design and speed... great work!


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Eric Jain


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Re: GoogleQueryParser

[Eric Jain <Er...@isb-sib.ch>]

> queryParser.setOperator(QueryParser.DEFAULT_OPERATOR_AND);

Thanks, that would be exactely what I need. Must be a new method, not yet in
the public release?


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Eric Jain


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Re: GoogleQueryParser

[Clemens Marschner <cm...@lanlab.de>]

> - Default AND rather than OR.

As for this part: This can be accomplished with

            queryParser = new QueryParser(defaultField, new MyAnalyzer());
            queryParser.setOperator(QueryParser.DEFAULT_OPERATOR_AND);

> - Treat a-b as "a-b" rather that a -b.

That would be interesting for me, too.

Clemens



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