CODEWITHSUNDEEP
javalucene
torquestomp
torquestomp

Reputation: 3344

IndexReader.getFieldNames Lucene 4

We're upgrading from Lucene 3.3.0 to Lucene 4.2.1 over here, and I can't seem to find the replacement for the old IndexReader.getFieldNames method. Googling brings up this ticket which speaks of a new IndexReader.getFieldInfos method, but that was experimental and seems to be around no longer - the trail is cold.

How can I replicate the behavior of IndexReader.getFieldNames in Lucene 4?

Upvotes: 0

Views: 754

Answers (1)

femtoRgon
femtoRgon

Reputation: 33351

You can get the FieldInfos with AtomicReader.getFieldInfos().
Something along the lines of:

for (FieldInfo info : atomicReader.getFieldInfos().iterator()) {
    String name = info.name;
    //Whatever you need to do with the name.
}

Take a look at the Migration Guide for more info, there's a section about IndexReader -> AtomicReader. If you aren't acquainted with that change yet, you'll likely find it useful information.

Upvotes: 1

Related Questions