On Oct 20, 2008, at 10:32 AM, mil84 wrote:
I've a problem witch searching. I need to search not only in file
contents,
but also in metadata. But I don't know how to do it. My code:
Document doc = new Document();
doc.add(new Field("contents", new FileReader(f)));
writer.addDocument(doc);
...
QueryParser parser = new QueryParser("contents", new
StandardAnalyzer());
Query q = parser.parse(list.get(i));
Hits hits = is.search(createQuery(searchText));
Everything is ok, it searches document's contents. But how to search
for
example in filenames? I I add this:
doc.add(new Field("filename", f.getCanonicalPath(), Field.Store.YES,
Field.Index.UN_TOKENIZED));
You'll have to tokenize the filename in order for it to match anything
other than an exact query. I believe the Lucene demo shows adding
other fields. Lucene doesn't have a concept of "metadata". It only
has a concept of Document and Fields. It's up to you to put in your
metadata, just as you have suggested here. Try just making that
filename Field a tokenized field and see what happens.
If you're looking for tools to get metadata from files, then have a
look at Tika or Aperture, which can easily be paired with Lucene.
Aperture, I believe, even comes with a Lucene example.
it doesn't work. Same problem is searching in metadata...Anyone
knows how to
do it? I browsed whole google 3 hours, but found nothing, not even
just one
working example, simple nothing....Thanx a lot.
--
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http://www.nabble.com/How-to-search-in-metadata--%28filename%2C-document-title%2C-cocument-creator%2C-...%29-tp20069124p20069124.html
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Grant Ingersoll
Lucene Boot Camp Training Nov. 3-4, 2008, ApacheCon US New Orleans.
http://www.lucenebootcamp.com
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
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