Hi,
Getting started shows how to index files. It does not have an example of
how to index how to index a list of objects. I was able to create an
index for the list of objects.
How do I retrieve a list of objects that match the query ?
// Create Index
Directory directory = new RAMDirectory();
Analyzer analyzer = new StandardAnalyzer();
IndexWriter iwriter = null;
try {
iwriter = new IndexWriter(directory, analyzer, true);
iwriter.setMaxFieldLength(250000);
EventList<TestObject> list = getAllBaskets(basketCache);
for (TestObject obj : list) {
Document document = new Document();
document.add(new Field("basketName",
basket.getName(), Field.Store.YES, Field.Index.TOKENIZED));
document
.add(new Field("borrower",
basket.getBorrowerCode(), Field.Store.YES, Field.Index.TOKENIZED));
document.add(new Field("description",
basket.getDescription(), Field.Store.YES,
Field.Index.TOKENIZED));
document.add(new Field("id", new
Long(basket.getId()).toString(), Field.Store.YES,
Field.Index.TOKENIZED));
iwriter.addDocument(document);
}
iwriter.optimize();
iwriter.close();
// Now search the index:
IndexSearcher isearcher = new IndexSearcher(directory);
// Parse a simple query that searches for "text":
QueryParser parser = new QueryParser("basketName",
analyzer);
Query query = parser.parse(searchBox.getText());
Hits hits = isearcher.search(query);
// Iterate through the results:
List<Long> basketIds = new ArrayList<Long>();
for (int i = 0; i < hits.length(); i++) {
Document hitDoc = hits.doc(i);
}
isearcher.close();
directory.close();
-----Original Message-----
From: Garth Patil [mailto:garthpa...@gmail.com]
Sent: Thursday, February 26, 2009 9:11 AM
To: java-user@lucene.apache.org
Subject: Re: Simple Java Object Search
Sure:
http://lucene.apache.org/java/2_4_0/gettingstarted.html
On Thu, Feb 26, 2009 at 9:06 AM, Ambati, Ravi BGI SF
<ravi.amb...@barclaysglobal.com> wrote:
>
> All,
>
> I have a list of java objects and would like to index the contents of
> those objects. And would like to update the index whenever list of
> objects is changed.
>
> The big question is when users searches for something in index, I
> would like to get all the objects that matached that search string.
>
> Would somebody help me in this?
>
> Thanks,
> Ravi Ambati
>
>
> --
>
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