https://lucene.apache.org/core/8_0_0/core/org/apache/lucene/search/spans/FilterSpans.html
FilterSpans (Lucene 8.0.0 API)
luceneapi
https://lucene.apache.org/core/5_3_1/core/org/apache/lucene/search/spans/FilterSpans.html
FilterSpans (Lucene 5.3.1 API)
luceneapi
https://lucene.apache.org/core/5_4_0/core/org/apache/lucene/search/spans/FilterSpans.html
FilterSpans (Lucene 5.4.0 API)
luceneapi