org.hotswap.agent.watch.nio

Class PathPair

java.lang.Object

org.hotswap.agent.watch.nio.PathPair

public class PathPair
extends Object

The PathPair is used for the windows watcher implementation. In ntfs the watched directories are locked so deleting them is impossible. The windows watcher watches one directory down ( at the expense of getting many more events) and this class holds the mapping between the target directory (the one we intend to listen events) vs the actually watched directory.

This workaround, does not completely eliminate the locking problem. For example, when working with maven projects one first needs to clean and then build (two commands). In eclipse, sometimes the m2e plugin complains that it can not access generated files. This is usually fixed with a clean.

Author:

alpapad@gmail.com

Constructor Summary

Constructors

Constructor and Description
PathPair(Path target) Instantiates a new path pair.
PathPair(Path target, Path watched) Instantiates a new path pair.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
static PathPair	get(Path target) Factory method for creating target-target path pair
static PathPair	get(Path target, Path watched) Factory method for creating a target-watched path pair
String	getShortDescription()
Path	getTarget() Gets the target path
Path	getWatched() Gets the watched path.
int	hashCode()
boolean	isWatching(Path target) Checks if the parameter path is being watched.
Path	resolve(Path other) Resolve a relative path (as returned by the java watcher) to an absolute path
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PathPair

public PathPair(Path target)

Instantiates a new path pair.

Parameters:

target - the target

PathPair

public PathPair(Path target,
                Path watched)

Instantiates a new path pair.

Parameters:

target - the target path

watched - the watched path

Method Detail

get

public static PathPair get(Path target)

Factory method for creating target-target path pair

Parameters:

target -

Returns:

the path pair

get

public static PathPair get(Path target,
                           Path watched)

Factory method for creating a target-watched path pair

Parameters:

target - the target path

watched - the watched path

Returns:

the path pair

getWatched

public Path getWatched()

Gets the watched path.

Returns:

the watched path

getTarget

public Path getTarget()

Gets the target path

Returns:

the target path

resolve

public Path resolve(Path other)

Resolve a relative path (as returned by the java watcher) to an absolute path

Parameters:

other - the other

Returns:

the path

isWatching

public boolean isWatching(Path target)

Checks if the parameter path is being watched.

Parameters:

target - the target

Returns:

true, if is watching

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getShortDescription

public String getShortDescription()

toString

public String toString()

Overrides:

toString in class Object