com.facebook.buck.io.file

Class LazyPath

java.lang.Object

com.facebook.buck.io.file.LazyPath

public abstract class LazyPath
extends Object

Class is intended to provide Paths to be used by cache

Constructor Summary

Constructors

Constructor and Description
LazyPath()

Method Summary

Modifier and Type	Method and Description
protected abstract Path	create()
Path	get() On first access it will invoke the given supplier to obtain the value of the Path.
Path	getUnchecked() Does not invoke the path supplier, assuming it was invoked previously.
static LazyPath	ofInstance(Path path) Creates an instance with given path.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyPath

public LazyPath()

Method Detail

ofInstance

public static LazyPath ofInstance(Path path)

Creates an instance with given path.

Parameters:

path - The path that get()/getUnchecked() methods should return.

Returns:

Instance that always returns the given path. It means there is no laziness.

get

public final Path get()
               throws IOException

On first access it will invoke the given supplier to obtain the value of the Path.

Returns:

Memoized path.

Throws:

IOException

getUnchecked

public Path getUnchecked()

Does not invoke the path supplier, assuming it was invoked previously.

Returns:

Memoized path.

create

protected abstract Path create()
                        throws IOException

Returns:

Path that will be created lazily and memoized.

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object