Hello, Rajib. On Mon, Jan 30, 2023 at 4:07 PM Saha, Rajib <rajib.s...@sap.com.invalid> wrote:
> Hi Mikhail, > > Thanks for your suggestion. It solved lots of cases today in my end. 😊 > > I need some more suggestions from your end. I am putting together as below > one by one: > ================================ > In 2.4, we have used couple of cases with APIs: > > Field(String name, String value, Field.Store store, Field.Index index) > Field(String name, String value, Field.Store store, Field.Index index, > Field.TermVector termVector) > Check org.apache.lucene.document.StringField/TextField and its FieldType constants. > In 8.11, I can see suitable API corresponding to it as : > Field(String name, Reader reader, IndexableFieldType type) > > But, I am not clear, how can I use IndexableFieldType for Field.Store, > Field.Index, Field.TermVector. > Can you please suggest here? > check usages for org.apache.lucene.document.Field.Store org.apache.lucene.document.FieldType#setIndexOptions org.apache.lucene.document.FieldType#setStoreTermVectors > ================================= > > In 2.4, there was an API: > IndexReader.indexExists(File file) > This checks, if index files exists in the path. > > In 8.11, any API, which can do the same job? > org.apache.lucene.index.DirectoryReader#indexExists > > ================================== > In 2.4, there was an API: > IndexReader.isLocked(FSDirectory fsdir) > IndexReader.unlock(Directory directory) > > In 8.11, are IndexReader and IndexWritter synchronized enough internally > for not using the APIs? > org.apache.lucene.store.BaseDirectory#obtainLock Lock.close() IndexWriters are mutually exclusive via lock factory. org.apache.lucene.index.DirectoryReader#open(org.apache.lucene.index.IndexWriter) opens NRT reader i.e. search what not yet committed. > Or is there any other class contain the suitable similar APIs? > > ================================== > If I have to delete a document from Index file with Doc Id, which API to > use? > > Previously there was an API > IndexReader.deleteDocument(docID) > org.apache.lucene.index.IndexWriter#deleteDocuments(org.apache.lucene.index.Term...) > > ================================== > IndexWritter. addIndexesNoOptimize(FSDirectory[]) > IndexWriter.optimize() > > Is there any similar concept in 8.11? If so, can you please help with APIs > org.apache.lucene.index.IndexWriter#addIndexes(org.apache.lucene.store.Directory...) But it kicks merge underneath. Should be fine. =================================== > > Regards > Rajib > > > > > -----Original Message----- > From: Mikhail Khludnev <m...@apache.org> > Sent: 29 January 2023 18:05 > To: java-user@lucene.apache.org > Subject: Re: Need help for conversion code from Lucene 2.4.0 to 8.11.2 > > Hello, > You can use > // gather list of valid fields from lucene > Collection<String> fields = FieldInfos.getIndexedFields(ir); > to loop field names. > And then obtain terms per field vis > > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Flucene.apache.org%2Fcore%2F8_11_2%2Fcore%2Forg%2Fapache%2Flucene%2Findex%2FMultiTerms.html%23getTerms-org.apache.lucene.index.IndexReader-java.lang.String-&data=05%7C01%7Crajib.saha%40sap.com%7Cfa9fa99fe54b4881c06508db01f56ac2%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638105925820483571%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=bjsIK1Xhb%2B%2FQfXgUqRbJlRmUyg%2FfYMHGeIEyMD39Bes%3D&reserved=0 > > On Sun, Jan 29, 2023 at 2:08 PM Saha, Rajib <rajib.s...@sap.com.invalid> > wrote: > > > Hi Mikhail, > > > > Thanks for the reference link. > > It really helped me. > > > > In One of my requirement, I need to extract, all the Terms in a > > IndexReader. > > I was trying the reference code " Fields fields = reader.fields();" in > > your reference link. > > > > But, there is no "reader.fields()" in 8.11.2. > > > > Could you please suggest someway to extract all the Terms with an > > IndexReader or some alternative ways? > > > > Regards > > Rajib > > > > -----Original Message----- > > From: Mikhail Khludnev <m...@apache.org> > > Sent: 19 January 2023 04:26 > > To: java-user@lucene.apache.org > > Subject: Re: Need help for conversion code from Lucene 2.4.0 to 8.11.2 > > > > [You don't often get email from m...@apache.org. Learn why this is > > important at https://aka.ms/LearnAboutSenderIdentification ] > > > > Hello, Rajib. > > API were evolved since 2.4, but it should be clear > > > > > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Flucene.apache.org%2Fcore%2F8_11_2%2Fcore%2Forg%2Fapache%2Flucene%2Findex%2Fpackage-summary.html%23fields&data=05%7C01%7Crajib.saha%40sap.com%7Cfa9fa99fe54b4881c06508db01f56ac2%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638105925820483571%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=5HamddKpQWTbHTdh23JpVxfGBDiDA8wwW7T25VuNRdA%3D&reserved=0 > > > > > > On Wed, Jan 18, 2023 at 1:11 PM Saha, Rajib <rajib.s...@sap.com.invalid> > > wrote: > > > > > Hi All, > > > > > > We are in a process for conversion of Lucene from 2.4.0 to 8.11.2 for > > our > > > platform code. > > > We have used extensively Lucene in our code. > > > > > > We have replaced several of our code to Lucene 8.11.2 APIs. > > > > > > But, few places, we are stuck of which New Lucene APIs to use, as not > > > getting any suitable match. > > > > > > Can somebody help me, how we can convert below code using Lucene 2.4.0 > to > > > 8.11.2? > > > > > > > > > ProcessDocs(IndexReader reader, Term t) { > > > > > > final TermDocs termDocs = reader.termDocs(); > > > termDocs.seek(t); > > > while (termDocs.next()) { > > > //Some internal function to process the doc. > > > forEach.process(termDocs.doc()); > > > } > > > > > > } > > > > > > Regards > > > Rajib > > > > > > > > > -- > > Sincerely yours > > Mikhail Khludnev > > > > > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ft.me%2FMUST_SEARCH&data=05%7C01%7Crajib.saha%40sap.com%7Cfa9fa99fe54b4881c06508db01f56ac2%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638105925820483571%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6s3AZMvh4IOYRrdFXut1RgpCfbDHNmlYbtJHMt091cg%3D&reserved=0 > > A caveat: Cyrillic! > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > > > > -- > Sincerely yours > Mikhail Khludnev > > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ft.me%2FMUST_SEARCH&data=05%7C01%7Crajib.saha%40sap.com%7Cfa9fa99fe54b4881c06508db01f56ac2%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638105925820483571%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6s3AZMvh4IOYRrdFXut1RgpCfbDHNmlYbtJHMt091cg%3D&reserved=0 > A caveat: Cyrillic! > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > -- Sincerely yours Mikhail Khludnev https://t.me/MUST_SEARCH A caveat: Cyrillic!
