org.entityfs.util.dirdiff
Class DirectoryDifferentiator

java.lang.Object
  org.entityfs.util.dirdiff.DirectoryDifferentiator

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

DirectorySynchronizer

public class DirectoryDifferentiator
extends Object
implements Runnable

The DirectoryDifferentiator is used for calculating differences between a master directory and a target directory. When the client calls run(), it iterates over every child entity in the master directory and tries to find a matching entity in the target directory using a EntityMatchStrategy. After iterating, it calls its UnmatchedTargetEntityStrategy for each unmatched entity in the target directory, and then its UnmatchedMasterEntityStrategy for each unmatched entity in the master directory.

This can for instance be used for implementing directory synchronization. See DirectorySynchronizer.

Since:

1.0

Author:

Karl Gustafsson

See Also:

DirectorySynchronizer, DirectoryTreeDifferentiator, EntityMatchStrategy, UnmatchedMasterEntityStrategy, UnmatchedTargetEntityStrategy

In_jar:

entityfs-util

Constructor Summary

DirectoryDifferentiator(DirectoryView master, DirectoryView target, EntityMatchStrategy ems, UnmatchedTargetEntityStrategy unmatchedTargetEntityStrategy, UnmatchedMasterEntityStrategy unmatchedMasterEntityStrategy)
Create a new DirectoryDifferentiator.

Method Summary

void	run() Run the analysis.

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectoryDifferentiator

public DirectoryDifferentiator(DirectoryView master,
                               DirectoryView target,
                               EntityMatchStrategy ems,
                               UnmatchedTargetEntityStrategy unmatchedTargetEntityStrategy,
                               UnmatchedMasterEntityStrategy unmatchedMasterEntityStrategy)
                        throws NullPointerException

Create a new DirectoryDifferentiator.

Parameters:

master - The master directory.

target - The target directory.

ems - The strategy used for deciding if an entity in the master directory matches an entity in the target directory.

unmatchedTargetEntityStrategy - The strategy object that is run for each unmatched entity in the target directory.

unmatchedMasterEntityStrategy - The strategy object that is run for each unmatched entity in the master directory.

Throws:

NullPointerException - If any of the arguments is null.

Method Detail

run

public void run()

Run the analysis.

Specified by:

run in interface Runnable