Here's the code which I am implementing (Indexing and Searching codes are in
different files)
Indexing Part :
d=new Document();
File indexDir = new File("index-dir");
KeywordAnalyzer analyzer = new KeywordAnalyzer();
IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_31,
analyzer);
try {
writer = new IndexWriter(FSDirectory.open(indexDir),conf);
} catch (IOException e1) {
e1.printStackTrace();
}
String q1 = contract.getDocId();
String q2 = contract.getDocName();
String q3 = contract.getCustomer(ctx).getMemberName();
Term term = new Term("DocId",contract.getDocId());
writer.deleteDocuments(term);
d.add(new
Field("DocId",q1,Field.Store.YES,Field.Index.NOT_ANALYZED));
d.add(new Field("All",q2,Field.Store.NO,Field.Index.NOT_ANALYZED));
d.add(new Field("Cust",q3,Field.Store.NO,Field.Index.NOT_ANALYZED));
try {
writer.addDocument(d);
writer.close();
endTime = System.currentTimeMillis();
//System.out.println("Time taken to index the contract with
DocID "+q1 +" is -> " +(endTime-startTime));
}
catch (IOException e1) {
e1.printStackTrace();
}
Searching Code :
File indexDir = new File("index-dir");
KeywordAnalyzer analyzer = new KeywordAnalyzer();
IndexSearcher searcher = null;
searcher = new IndexSearcher(FSDirectory.open(indexDir));
String[] fields = new String[] { "DocId","Item","Cust","All"};
MultiFieldQueryParser parser = new
MultiFieldQueryParser(Version.LUCENE_31,fields,analyzer);
parser.setAllowLeadingWildcard(true);
String queryString = field.getValue().toString();
TopDocs results = null;
Query query1;
query1 = parser.parse(queryString);
results = searcher.search(query1,1000);
System.out.println("total hits: " + results.totalHits);
ScoreDoc[] hits = results.scoreDocs;
Document doc = null;
ArrayList docIds = new ArrayList();
for (ScoreDoc hit : hits)
{
doc = searcher.doc(hit.doc);
System.out.println(doc.get("DocId"));
((ArrayList) docIds).add(doc.get("DocId"));
}
// Function which you need not to understand
IMnCriterion criterion =
contractQuery.createInCriterion(contractQuery.ATTR_P_DOC_ID, docIds);
contractQuery.setCriterion(criterion);
searcher.close();
}
