InformationRetrieval

using Lucene to implement a IR system

Function:

Index: 1.create index

2.delete index

3.add index

4.update index

Search:

1.termQuery

2.multiFieldQuery

3.booleanQuery

4.prefixQuery

5.phraseQuery

6.multiPhraseQuery

7.regexpQuery

8.fuzzyQuery

9.queryparser

10.sort

11.filter