Hi Michael,
Thanks for your response. Yes, I got that.
I guess, my question is, how do I access the newly added document ? In
other words, if the index initially had 20 docs of which 10 were
updated (that is, deleted and then added), how do I access the updated
ones ?
Initially, there was no check for delete - that is, I did not have
IndexReader.isDeleted(int). It had the for loop only which would fail
when obtaining a 'deleted' document with the following :
java.lang.IllegalArgumentException: attempt to access a deleted document
at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:331)
at org.apache.lucene.index.MultiReader.document(MultiReader.java:108)
at org.apache.lucene.index.IndexReader.document(IndexReader.java:437)
etc.
Regards,
Nagesh
On 7/25/08, Michael McCandless <[EMAIL PROTECTED]> wrote:
>
> When you call updateDocument, the old document is deleted but a
> wholly new document is added. So the "else" clause in your loop below
> will report on the newly added documents (you won't miss any).
>
> Mike
>
> (Nagesh S) wrote:
>
>> Hi,
>> I think, the earlier mail didn't make it through.
>>
>> I am writing a class to report on an index. This index has documents
>> updated using the IndexWriter.updateDocument(Term, Document) method.
>> That is, documents were deleted and added again. My aim is to see what
>> documents (and their fields) are present in the index. Since the
>> document was updated (i.e. deleted and added), it is marked as deleted
>> and hence not able to obtain a Document object for the updated
>> document.
>>
>> How do I report on such documents ?
>>
>> for (int i = 1; i < numDocs; i++) {
>> //ir is an IndexReader object
>> if (ir.isDeleted(i)) {
>> bw.write("Document " + i + " has been deleted.");
>> bw.newLine();
>> } else {
>> Document d = getDocument(ir, i);
>>
>> List<Field> l = d.getFields();
>> int numFields = l.size();
>> bw.write("Document has " + numFields + " fields as
>> follows");
>> bw.newLine();
>>
>> for (int j = 0; j < numFields; j++) {
>> String fieldName = l.get(j).name();
>> bw.write("\t Field : " + fieldName + " Value : "
>> + d.getField(fieldName).stringValue());
>> bw.newLine();
>> }
>> }
>> }
>>
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>
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