How to get the matching spans of a Span Term Query in Lucene 5?

Question

In Lucene to get the words around a term it is advised to use Span Queries. There is good walkthrough in http://lucidworks.com/blog/accessing-words-around-a-positional-match-in-

Answer 1

The way to do it would be as follows.

LeafReader pseudoAtomicReader = SlowCompositeReaderWrapper.wrap(reader);
Term term = new Term("field", "fox");
SpanTermQuery spanTermQuery = new SpanTermQuery(term);
SpanWeight spanWeight = spanTermQuery.createWeight(is, false);
Spans spans = spanWeight.getSpans(pseudoAtomicReader.getContext(), Postings.POSITIONS);

The support for iterating over the spans via span.next() is also gone in version 5.3 of Lucene. To iterate over the spans you can do

int nxtDoc = 0;
while((nxtDoc = spans.nextDoc()) != spans.NO_MORE_DOCS){
  System.out.println(spans.toString());
  int id = nxtDoc;
  System.out.println("doc_id="+id);
  Document doc = reader.document(id);
  System.out.println(doc.getField("field"));
  System.out.println(spans.nextStartPosition());
  System.out.println(spans.endPosition());
}