Hi all,
I am a newbie to lucene.
I have successfully created my lucene index. But I am not getting how to
invalidate previous indexes whenever I add/delete/update any field in my
lucene index.
Please help me out.
for better understanding I have wrote my indexing function :
StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_31);
IndexWriter writer = null;
File indexDir = new File("./indexDir");
try {
writer = new IndexWriter(FSDirectory.open(indexDir),
analyzer, IndexWriter.MaxFieldLength.UNLIMITED);
}
catch (IOException e1) {
e1.printStackTrace();
}
//Adding New fields to the document
Document d = new Document();
d.add(new Field("key", key , Field.Store.YES ,
Field.Index.ANALYZED));
// d.add(Field.Text("obj", attribute.toString()));
// index in Lucene here
if (attribute instanceof String) {
System.out.println("IN CMnString ");
d.add(new Field("attribute",attribute.toString(),
Field.Store.YES, Field.Index.NO));
System.out.println("key is ->"+key+"...Attribute is
"+attribute);
}
else if (attribute instanceof CMnMoney) {
System.out.println("IN CMnMoney ");
d.add(new Field("attribute",attribute.toString(),
Field.Store.YES, Field.Index.NO));
System.out.println("key is ->"+key+"...Value is
"+attribute);
}
else if (attribute instanceof CMnQuantity) {
System.out.println("IN CMnQuantity ");
d.add(new Field("attribute",attribute.toString(),
Field.Store.YES, Field.Index.NO));
System.out.println("key is ->"+key+"...Attribute is
"+attribute);
}
else if (attribute instanceof CMnEnum) {
System.out.println("IN CMnEnum ");
d.add(new Field("attribute",attribute.toString(),
Field.Store.YES, Field.Index.NO));
System.out.println("key is ->"+key+"...Attribute is
"+attribute);
}
else {
// see what else is there....
}
try {
writer.addDocument(d);
writer.optimize() ;
writer.close();
}
catch (IOException e1) {
e1.printStackTrace();
}
}
Please guide me further as I got stuck at this point.
I have searched a lot about this and all I got is I have to first delete
that document and then add that document again to my index.
