com.googlecode.jweb1t
Class JWeb1TSearcher

java.lang.Object
  com.googlecode.jweb1t.JWeb1TSearcher

All Implemented Interfaces:

Searcher

public class JWeb1TSearcher
extends Object
implements Searcher

Search-on-disk based implementation of the Searcher interface for accessing the data in Web1T-format. Requires very little memory, but is rather slow.

JWeb1TSearcher

public JWeb1TSearcher(String... indexFiles)
               throws IOException

Throws:

IOException

JWeb1TSearcher

public JWeb1TSearcher(File indexPath,
                      int minN,
                      int maxN)
               throws IOException

Try to deduce the index files from the given path.

Parameters:

indexPath - The path in which the ngram index files are located.

minN - The minimum ngram length.

maxN - The maximum ngram length.

Throws:

IOException

getFrequency

public long getFrequency(String aPhrase)
                  throws IOException

Specified by:

getFrequency in interface Searcher

Throws:

IOException

getNrOfNgrams

public long getNrOfNgrams(int aNGramSize)

Specified by:

getNrOfNgrams in interface Searcher

getNrOfDistinctNgrams

public long getNrOfDistinctNgrams(int aNGramSize)

Specified by:

getNrOfDistinctNgrams in interface Searcher