Package org.eclnt.util.file

Class DirectoryStampMgmt

java.lang.Object

org.eclnt.util.file.DirectoryStampMgmt

public class DirectoryStampMgmt
extends Object

Utility to summarize the content of a directory as one hash code. Each contained file's name, change date and size is added to one "big" hash code that represents the directory.

Typical usage scenario: you want to find out if a certain directory has changed. You create a stamp before the potential changes and you create the stamp afterwards - and then compare if the stamps are different.

Of course this is a hash-based calculation of the stamp. The probability that changes are properly detected is high - but not 100%! So you should/ must not use for mission critical aspects!

Constructor Summary

Constructors

Constructor	Description
DirectoryStampMgmt()

Method Summary

Modifier and Type	Method	Description
static long	createStampForDirectory(String directory)
static long	createStampForDirectory(String directory, Set<String> ignoreNames)

Methods inherited from class java.lang.Object

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

Constructor Details

DirectoryStampMgmt

public DirectoryStampMgmt()

Method Details

createStampForDirectory

public static long createStampForDirectory(String directory)

createStampForDirectory

public static long createStampForDirectory(String directory,
 Set<String> ignoreNames)

Parameters:

ignoreNames - Set of file/directory names that are ignored. Each item of the set is a wild card expression (e.g. "*XXX*").