org.egothor.duplicity.algorithm

Class PermutatedMinsFiller

java.lang.Object

org.egothor.duplicity.algorithm.PermutatedMinsFiller

Direct Known Subclasses:

DocumentLevelPermutatedMinsFiller, ParagraphLevelPermutatedMinsFiller, SentenceLevelPermutatedMinsFiller

public abstract class PermutatedMinsFiller
extends Object

Fills the DocumentPermutatedMins with values corrensponding to the given sequence of tokens. This class takes care to allways return the child appropriate for working on the right duplicity checking level (according to the Constants.CHECK_DUPLICITY_LEVEL).

Author:

Kateřina Dufková

Method Summary

Modifier and Type	Method and Description
void	computeDocumentMins(DocumentPermutatedMins result, Sequence<Token> terms, long documentUID, int documentDBRevision) Computes the permutated mins values for given sequence of tokens of a document and fills it into the result under the identificator documentID.
static PermutatedMinsFiller	createNew() Ensures that the right child is created according to the duplicity checking algorithm level set in Constants.CHECK_DUPLICITY_LEVEL.
static PermutatedMinsFiller	createNew(long seed) Ensures that the right child is created according to the duplicity checking algorithm level set in Constants.CHECK_DUPLICITY_LEVEL.
long	getSeed()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createNew

public static PermutatedMinsFiller createNew(long seed)

Ensures that the right child is created according to the duplicity checking algorithm level set in Constants.CHECK_DUPLICITY_LEVEL.

Returns:

PermutatedMinsFiller

createNew

public static PermutatedMinsFiller createNew()

Ensures that the right child is created according to the duplicity checking algorithm level set in Constants.CHECK_DUPLICITY_LEVEL.

Returns:

PermutatedMinsFiller

getSeed

public long getSeed()

computeDocumentMins

public void computeDocumentMins(DocumentPermutatedMins result,
                                Sequence<Token> terms,
                                long documentUID,
                                int documentDBRevision)
                         throws DuplicityCheckingException

Computes the permutated mins values for given sequence of tokens of a document and fills it into the result under the identificator documentID.

Parameters:

result - instance of DocumentPermutatedMins to be filled with results

terms - sequence of tokens of the document

documentUID - identificator of the document

documentDBRevision - revision number of the document in the document database

Throws:

DuplicityCheckingException - if the created DocumentPermutatedMins is empty