Hi All,
If you have any suggestion on any below points[in my previous mail thread],
could you please share your experience?
We are bit stuck on those points. ☹
Need some of your expert's suggestion.
Regards
Rajib
-----Original Message-----
From: Saha, Rajib
Sent: 30 January 2023 18:37
To: java-user@lucene.apache.org
Subject: RE: Need help for conversion code from Lucene 2.4.0 to 8.11.2
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)
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?
=================================
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?
==================================
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?
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)
==================================
IndexWritter. addIndexesNoOptimize(FSDirectory[])
IndexWriter.optimize()
Is there any similar concept in 8.11? If so, can you please help with APIs
===================================
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!
>
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--
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!
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