alluxio.client.file

Class FileSystem.Cache

java.lang.Object

alluxio.client.file.FileSystem.Cache

Enclosing interface:

FileSystem

public static class FileSystem.Cache
extends Object

A cache for storing FileSystem clients. This should only be used by the Factory class.

Constructor Summary

Constructors

Constructor and Description
Cache()

Method Summary

Modifier and Type	Method and Description
FileSystem	get(FileSystem.FileSystemKey key) Gets a FileSystem from the cache.
FileSystem	remove(FileSystem.FileSystemKey key) Removes the client with the given key from the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

Cache

public Cache()

Method Detail

get

public FileSystem get(FileSystem.FileSystemKey key)

Gets a FileSystem from the cache. If there is none, one is created, inserted into the cache, and returned back to the user.

Parameters:

key - the key to retrieve a FileSystem

Returns:

the FileSystem associated with the key

remove

public FileSystem remove(FileSystem.FileSystemKey key)

Removes the client with the given key from the cache. Returns the client back to the user.

Parameters:

key - the client key to remove

Returns:

The removed context or null if there is no client associated with the key