org.egothor.duplicity.file

Class SimilarUnitPairsTempFile

java.lang.Object

org.egothor.duplicity.file.DuplicityCheckingFile

org.egothor.duplicity.file.CommonSimilarUnitPairsFile

org.egothor.duplicity.file.SimilarUnitPairsTempFile

public class SimilarUnitPairsTempFile
extends CommonSimilarUnitPairsFile

Represents the "similar unit pairs" file used in duplicity checking algorithm. This class represents the temporary version of this file, which is created when two PermutatedMinsFile instances are merged. This file differs from the SimilarUnitPairsFile in three things:

• It does not provide merge() method.
• It can be constructed only using SimilarUnitPairsFileProducer.
• If the file already exists on the filesystem, if will be rewritten.

The file contains instances of UnitPair class. That means it contains pairs {first, second}, where first, second are identificators of units on which we check duplicity (can be document, paragraph or sentence). The file is sorted - the main criteria is first field, in case of tie second field.

The file should be used as follows.

1. First it should be created using SimilarUnitPairsFileProducer.
2. It can be merged with another file corresponding to the same permutation by a call to SimilarUnitPairsFile.merge(org.egothor.duplicity.file.SimilarUnitPairsFile, org.egothor.duplicity.file.SimilarUnitPairsTempFile) method.

Author:

Kateřina Dufková

Method Summary

Modifier and Type	Method and Description
String	getFilename() Returns the filename corresponding to this file.

Methods inherited from class org.egothor.duplicity.file.CommonSimilarUnitPairsFile

dump, getPermID, hasTheSameContent, remove, toString

Methods inherited from class org.egothor.duplicity.file.DuplicityCheckingFile

delete, getLocation, getOut, hasTheSameContent

Methods inherited from class java.lang.Object

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

Method Detail

getFilename

public String getFilename()

Returns the filename corresponding to this file. The location and permID fields MUST be already set. The filename is created in temp directory under the directory given in location field and is in form Constants.SIMILAR_UNIT_PAIRS_FILE_PREFIX<permID>.

Specified by:

getFilename in class DuplicityCheckingFile