Adengine

part 1

part 2

QuickStart

 BEIndexer indexer = new BEIndexer();
 AtomicLong id = new AtomicLong(1);
 Document doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("age ∈ {3} ∧ state ∈ {NY }"));
 indexer.append(doc);
 doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("age ∈ {3} ∧ gender ∈ {F}"));
 indexer.append(doc);
 doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("age ∈ {3} ∧ gender ∈ {M} ∧ state ∉ {CA}"));
 indexer.append(doc);
 doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("state ∈ {CA} ∧ gender ∈ {M}"));
 indexer.append(doc);
 doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("age ∈ {3| 4}"));
 indexer.append(doc);
 doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("state ∉ {CA|NY }"));
 indexer.append(doc);
 doc = new Document(id.getAndAdd(1L), new DNFNotation().denotate("subscription ∈ {30|40|50}∧ state ∈ {NY }"));
 indexer.append(doc);
 
 Query query = new Query(new ConjunctionNotation().denotate("age ∈ {3} ∧ state ∈ {CA} ∧ gender ∈ {M}"));
 Set<Long> result = indexer.retrieve(query);

Reference