Queries
Packages 
Package Description
org.apache.lucene.queries
Filters and Queries that add to core Lucene.
org.apache.lucene.queries.function
Queries that compute score based upon a function.
org.apache.lucene.queries.function.docvalues
FunctionValues for different data types.
org.apache.lucene.queries.function.valuesource
A variety of functions to use with FunctionQuery.
org.apache.lucene.queries.intervals
Intervals queries
org.apache.lucene.queries.mlt
Document similarity query generators.
org.apache.lucene.queries.payloads
The payloads package provides Query mechanisms for finding and using payloads.
org.apache.lucene.queries.spans
The calculus of spans.