FuzzyQuery seems also not suitable for me.
PrefixQuery can be one token only, right?
Best
On 9/18/18 5:23 PM, baris.ka...@oracle.com wrote:
Erick,-
i think the reason why MultiPhraseQuery was created was synonyms as
far as i understood. am i right?
i want to have a BooleanQuery or MultiPhraseQuery (i cant decide
between these two) with an index which considers synonyms already.
One disadvantage of MultiPhraseQuery is that it needs to match all the
terms.
Then should i go for BooleanQuery with multiple PhraseQueries? but
PhraseQuery cannot handle synonyms.
i know TermQuery is for exact match so i cant use that either in this
case.
i have multiple tokens and i want to be able to do a cheap fuzzy search.
Best regards
On 9/18/18 4:58 PM, Erick Erickson wrote:
bq. i wish the Javadocs has examples like PhraseQuery Javadocs gave.
This is where someone coming into the examples for the first time is
invaluable, javadoc patches are most welcome! It can be hard to back
off enough to remember what the confusing bits are when you wrote the
code ;)
On Tue, Sep 18, 2018 at 1:56 PM <baris.ka...@oracle.com> wrote:
Any suggestions please?
Two main questions:
- how do synonyms get utilized by MultiPhraseQuery?
- how do we get second token "app" applied to the example on
MultiPhraseQuery javadocs page? (and how do we get Terms[] array from
Terms object?)
Now three questions :)
i wish the Javadocs has examples like PhraseQuery Javadocs gave.
Best
On 9/18/18 4:45 PM, baris.ka...@oracle.com wrote:
Trying to implement the example on
https://urldefense.proofpoint.com/v2/url?u=https-3A__lucene.apache.org_core_6-5F6-5F1_core_org_apache_lucene_search_MultiPhraseQuery.html&d=DwIDaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=nlG5z5NcNdIbQAiX-BKNeyLlULCbaezrgocEvPhQkl4&m=7WmT3NC9wzVk4FPBupACoALoL4kho6V7-c2o4Kac5QM&s=gM6_4hvpLEZY1_7r-CEInZbUb-ublYDcJOQ8rmeAgVA&e=
// A generalized version of PhraseQuery, with the possibility of
adding more than one term at the same position that are treated as a
disjunction (OR). To use this class to search for the phrase
"Microsoft app*" first create a Builder and use
// MultiPhraseQuery.Builder.add(Term) on the term "microsoft"
(assuming lowercase analysis), then find all terms that have "app" as
prefix using LeafReader.terms(String), seeking to "app" then iterating
and collecting terms until there is no longer that prefix,
// and finally use MultiPhraseQuery.Builder.add(Term[]) to add them.
MultiPhraseQuery.Builder.build() returns the fully constructed (and
immutable) MultiPhraseQuery.
IndexSearcher is = new IndexSearcher(indexReader);
MultiPhraseQuery.Builder builder = new MultiPhraseQuery.Builder();
builder.add(new Term("body", "one"), 0);
Terms terms = LeafReader.terms("body"); // will this be slow? and how
do we incorporate token/word "app" here?
// i STILL dont see how to get individual Term objects from terms
object and plus do i need to declare LeafReader object?
Term[] termArr = new Term[k]; // i will get this filled via using
Terms.iterator
builder.add(termArr);
MultiPhraseQuery mpq = builder.build();
TopDocs hits = is.search(mpq, 20);// 20 hits
Best regards
On 9/18/18 4:16 PM, baris.ka...@oracle.com wrote:
Hi,-
how does MultiPhraseQuery treat synonyms?
is the following possible?
... (created index with synonyms and indexReader object has the
index)
IndexSearcher is = new IndexSearcher(indexReader);
MultiPhraseQuery.Builder builder = new MultiPhraseQuery.Builder();
builder.add(new Term("body", "one"), 0);
builder.add(new Term("body", "two"), 1);
MultiPhraseQuery mpq = builder.build();
TopDocs hits = is.search(mpq, 20);// 20 hits
Best regards
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