Hi Mikhail,
Thanks for all youโre your suggestions in one shot.
It helped us a lot.
Thank you very much once again. ๐
Need one more suggestion for below API.
==========================
IndexOutput.seek(long pos)
==========================
We have used it extensively in around 40-50 places.
Currently, this API is not there.
Could you please suggest, how we can handle the API in 8.11.2?
Regards
Rajib
-----Original Message-----
From: Mikhail Khludnev <m...@apache.org>
Sent: 01 February 2023 12:22
To: java-user@lucene.apache.org
Subject: Re: Need help for conversion code from Lucene 2.4.0 to 8.11.2
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. ๐
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%7C6410f6d6a071470ba56408db042100b5%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638108312019308094%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=RR5xMHIzYZqltv8FEq%2Btg%2Bc8INYZd1WQ3Nu%2FwS1eVig%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%7C6410f6d6a071470ba56408db042100b5%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638108312019308094%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Ggdf909aTONFendGmA0ucmWV%2FP76UT2iwtC8gdzf1tk%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%7C6410f6d6a071470ba56408db042100b5%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638108312019308094%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UZTUGmuXrDFwKIBRNEPHczjND9Wa%2FdPzJAYByUqnbAs%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%7C6410f6d6a071470ba56408db042100b5%7C42f7676cf455423c82f6dc2d99791af7%7C0%7C0%7C638108312019308094%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UZTUGmuXrDFwKIBRNEPHczjND9Wa%2FdPzJAYByUqnbAs%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
