re-open does work, but you cannot ignore its return value! see the
javadocs for an example.
On Tue, Jul 5, 2011 at 3:10 PM, Gabriele Kahlout
<gabri...@mysimpatico.com> wrote:
> Re-open doens't work, but open does.
>
> @Test
> public void testUpdate() throws IOException,
> ParserConfigurationException, SAXException, ParseException {
> Analyzer analyzer = getAnalyzer();
> QueryParser parser = new QueryParser(Version.LUCENE_32, content,
> analyzer);
> Query allQ = parser.parse("*:*");
>
> IndexWriter writer = getWriter();
> final IndexReader indexReader = IndexReader.open(writer, true);
>
> IndexSearcher searcher = new IndexSearcher(indexReader);
> TopDocs docs = searcher.search(allQ, 10);
> assertEquals(0, docs.totalHits); // empty/no index
>
> Document doc = getDoc();
> writer.addDocument(doc);
> writer.commit();
>
> searcher = new IndexSearcher(IndexReader.open(writer, true));//new
> IndexSearcher(directory);
> docs = searcher.search(allQ, 10);
> assertEquals(1, docs.totalHits);
> }
>
> On Tue, Jul 5, 2011 at 8:23 PM, Gabriele Kahlout
> <gabri...@mysimpatico.com>wrote:
>
>> Still won't work (same as before).
>>
>>
>> @Test
>> public void testUpdate() throws IOException,
>> ParserConfigurationException, SAXException, ParseException {
>> Analyzer analyzer = getAnalyzer();
>> QueryParser parser = new QueryParser(Version.LUCENE_32, content,
>> analyzer);
>> Query allQ = parser.parse("*:*");
>>
>> IndexWriter writer = getWriter();
>> final IndexReader indexReader = IndexReader.open(writer, true);
>>
>> IndexSearcher searcher = new IndexSearcher(indexReader);
>>
>> TopDocs docs = searcher.search(allQ, 10);
>> assertEquals(0, docs.totalHits); // empty/no index
>>
>> Document doc = getDoc();
>> writer.addDocument(doc);
>> writer.commit();
>>
>> * indexReader.reopen();
>> searcher = new IndexSearcher(indexReader);
>>
>> docs = searcher.search(allQ, 10);
>> *
>> assertEquals(1,docs.totalHits);
>> }
>>
>> private Document getDoc() {
>> Document doc = new Document();
>> doc.add(new Field("id", "0", Field.Store.YES,
>> Field.Index.NOT_ANALYZED));
>> return doc;
>> }
>>
>> private IndexWriter getWriter() throws IOException { // 2
>> return new IndexWriter(directory, new WhitespaceAnalyzer(), // 2
>> IndexWriter.MaxFieldLength.UNLIMITED); // 2
>>
>> }
>>
>> On Tue, Jul 5, 2011 at 8:15 PM, Michael McCandless <
>> luc...@mikemccandless.com> wrote:
>>
>>> Sorry, you must reopen the underlying IndexReader, and then make a new
>>> IndexSearcher from the reopened reader.
>>>
>>> Mike McCandless
>>>
>>> http://blog.mikemccandless.com
>>>
>>> On Tue, Jul 5, 2011 at 2:12 PM, Gabriele Kahlout
>>> <gabri...@mysimpatico.com> wrote:
>>> > and how do you do that? There is no reopen method
>>> >
>>> > On Tue, Jul 5, 2011 at 8:09 PM, Michael McCandless <
>>> > luc...@mikemccandless.com> wrote:
>>> >
>>> >> After your writer.commit you need to reopen your searcher to see the
>>> >> changes.
>>> >>
>>> >> Mike McCandless
>>> >>
>>> >> http://blog.mikemccandless.com
>>> >>
>>> >> On Tue, Jul 5, 2011 at 1:48 PM, Gabriele Kahlout
>>> >> <gabri...@mysimpatico.com> wrote:
>>> >> > @Test
>>> >> > public void testUpdate() throws IOException,
>>> >> > ParserConfigurationException, SAXException, ParseException {
>>> >> > Analyzer analyzer = getAnalyzer();
>>> >> > QueryParser parser = new QueryParser(Version.LUCENE_32,
>>> content,
>>> >> > analyzer);
>>> >> > Query allQ = parser.parse("*:*");
>>> >> >
>>> >> > IndexWriter writer = getWriter();
>>> >> > IndexSearcher searcher = new
>>> >> IndexSearcher(IndexReader.open(writer,
>>> >> > true));
>>> >> > TopDocs docs = searcher.search(allQ, 10);
>>> >> > * assertEquals(0, docs.totalHits); // empty/no index*
>>> >> >
>>> >> > Document doc = getDoc();
>>> >> > writer.addDocument(doc);
>>> >> > writer.commit();
>>> >> >
>>> >> > docs = searcher.search(allQ, 10);
>>> >> > * assertEquals(1,docs.totalHits); //it fails here.
>>> docs.totalHits
>>> >> > equals 0*
>>> >> > }
>>> >> > What am I doing wrong here?
>>> >> >
>>> >> > If I initialize searcher with new IndexSearcher(directory) I'm told:
>>> >> > org.apache.lucene.index.IndexNotFoundException: no segments* file
>>> found
>>> >> in
>>> >> > org.apache.lucene.store.RAMDirectory@3caa4blockFactory
>>> >> =org.apache.lucene.store.SingleInstanceLockFactory@ed0220c:
>>> >> > files: []
>>> >> >
>>> >> > --
>>> >> > Regards,
>>> >> > K. Gabriele
>>> >> >
>>> >> > --- unchanged since 20/9/10 ---
>>> >> > P.S. If the subject contains "[LON]" or the addressee acknowledges
>>> the
>>> >> > receipt within 48 hours then I don't resend the email.
>>> >> > subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧
>>> >> time(x)
>>> >> > < Now + 48h) ⇒ ¬resend(I, this).
>>> >> >
>>> >> > If an email is sent by a sender that is not a trusted contact or the
>>> >> email
>>> >> > does not contain a valid code then the email is not received. A valid
>>> >> code
>>> >> > starts with a hyphen and ends with "X".
>>> >> > ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧
>>> y ∈
>>> >> > L(-[a-z]+[0-9]X)).
>>> >> >
>>> >>
>>> >
>>> >
>>> >
>>> > --
>>> > Regards,
>>> > K. Gabriele
>>> >
>>> > --- unchanged since 20/9/10 ---
>>> > P.S. If the subject contains "[LON]" or the addressee acknowledges the
>>> > receipt within 48 hours then I don't resend the email.
>>> > subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧
>>> time(x)
>>> > < Now + 48h) ⇒ ¬resend(I, this).
>>> >
>>> > If an email is sent by a sender that is not a trusted contact or the
>>> email
>>> > does not contain a valid code then the email is not received. A valid
>>> code
>>> > starts with a hyphen and ends with "X".
>>> > ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈
>>> > L(-[a-z]+[0-9]X)).
>>> >
>>>
>>
>>
>>
>> --
>> Regards,
>> K. Gabriele
>>
>> --- unchanged since 20/9/10 ---
>> P.S. If the subject contains "[LON]" or the addressee acknowledges the
>> receipt within 48 hours then I don't resend the email.
>> subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧
>> time(x) < Now + 48h) ⇒ ¬resend(I, this).
>>
>> If an email is sent by a sender that is not a trusted contact or the email
>> does not contain a valid code then the email is not received. A valid code
>> starts with a hyphen and ends with "X".
>> ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈
>> L(-[a-z]+[0-9]X)).
>>
>>
>
>
> --
> Regards,
> K. Gabriele
>
> --- unchanged since 20/9/10 ---
> P.S. If the subject contains "[LON]" or the addressee acknowledges the
> receipt within 48 hours then I don't resend the email.
> subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x)
> < Now + 48h) ⇒ ¬resend(I, this).
>
> If an email is sent by a sender that is not a trusted contact or the email
> does not contain a valid code then the email is not received. A valid code
> starts with a hyphen and ends with "X".
> ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈
> L(-[a-z]+[0-9]X)).
>
