Package org.graalvm.polyglot.io

Class FileSystem.Selector

java.lang.Object

org.graalvm.polyglot.io.FileSystem.Selector

All Implemented Interfaces:

Predicate<Path>

Enclosing interface:

FileSystem

public abstract static class FileSystem.Selector
extends Object
implements Predicate<Path>

A selector for determining which FileSystem should handle operations on a given Path. This class encapsulates a FileSystem and defines a condition for selecting it.

Since:

24.2

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Selector(FileSystem fileSystem)	Creates a FileSystem.Selector for the specified FileSystem.

Method Summary

Modifier and Type	Method	Description
final FileSystem	getFileSystem()	Returns the FileSystem associated with this selector.
static FileSystem.Selector	of(FileSystem fileSystem, Predicate<Path> predicate)	Creates a FileSystem.Selector for the specified FileSystem using the provided Predicate.
abstract boolean	test(Path path)	Tests whether the FileSystem associated with this selector can handle operations on the specified Path.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Predicate

and, negate, or

Constructor Details

Selector

protected Selector(FileSystem fileSystem)

Creates a FileSystem.Selector for the specified FileSystem.

Since:

24.2

Method Details

getFileSystem

public final FileSystem getFileSystem()

Returns the FileSystem associated with this selector.

Since:

24.2

test

public abstract boolean test(Path path)

Tests whether the FileSystem associated with this selector can handle operations on the specified Path.

Specified by:

test in interface Predicate<Path>

Parameters:

path - the path to test, provided as a normalized absolute path. The given path has no path components equal to "." or "..".

Returns:

true if the associated FileSystem can handle the path; false otherwise

Since:

24.2

of

public static FileSystem.Selector of(FileSystem fileSystem,
 Predicate<Path> predicate)

Creates a FileSystem.Selector for the specified FileSystem using the provided Predicate.

Parameters:

fileSystem - the FileSystem to associate with the selector

predicate - the condition to determine if the FileSystem can handle a given path

Returns:

a new FileSystem.Selector that delegates path testing to the predicate

Since:

24.2