Lucene search query dynamic update and add additional query fields?

Question

I am working on facet search, one of the requirement is to select id values from facet drop-down. id values will be in the range 1-digit to 16-digit, but in data these id values will be from 8-digit to 16-digit.

I have to support following use-cases, both from UI and REST api.

Sample Query:

http://localhost:7001/app/api/search/meta.type:typeA AND id:value?results=facet:id

Requirement is to correct query, based on values passed for attribute id. If passed value's length is less than 8 digits. i.e. if the is less than 99999999, I have to do a regex search, otherwise normal matching search.
Ex:

1)
actual: +meta.type:typeA +id
modified +meta.type:typeA +id:8 +id:8*
2)
actual +meta.type:typeA +id:4567
modified +meta.type:typeA +id:4567 +id:4567*
3)
actual +meta.type:typeA +id:12345678
modified +meta.type:typeA +id:12345678 +id:12345678*
4)
actual +meta.type:typeA +id:123456789
modified +meta.type:typeA +id:123456789

Query type is BooleanQuery.

I have tried following, but it has no effect on query value. (Adding another value to the query as the first one wouldn't return anything)

Query [] termArray = new Query [1];
BooleanQuery bq = new BooleanQuery();
bq.add(new TermQuery(new Term("id", queryKeyValue + "*")), BooleanClause.Occur.MUST);
termArray[0] = Query.mergeBooleanQueries(bq);;
query.combine(termArray);

I am using Lucene 3.6 libraries.
I have a doubt, this kind of updates on query are possible or not.
If this is valid scenario and can be achieved, can anyone help me with this?

Answer 1

Don't use a TermQuery. TermQuery is a simple query exactly matching the given text. If you are manually constructing a query, there isn't a query parser to handle that sort of thing for you, so you have to select the correct types of queries yourself.

PrefixQuery is the one you are looking for:

bq.add(new PrefixQuery(new Term("id", queryKeyValue)), BooleanClause.Occur.MUST);

I don't think this will do what you want, however. The difference between

+meta.type:typeA +id:12345678

and

+meta.type:typeA +id:12345678 +id:12345678*

Is actually quite trivial. You will not get more results that way, because you still require an exact id match. I believe what you are looking for is probably more like:

+meta.type:typeA +(id:12345678 id:12345678*)