alluxio.worker.block.meta

Class StorageTierView

java.lang.Object

alluxio.worker.block.meta.StorageTierView

Direct Known Subclasses:

StorageTierAllocatorView, StorageTierEvictorView

public abstract class StorageTierView
extends Object

This class is an abstract class for allocators and evictors to extend to provide limited access to StorageTier.

Constructor Summary

Constructors

Constructor and Description
StorageTierView(StorageTier tier) Creates a StorageTierView using the actual StorageTier.
StorageTierView(StorageTier tier, boolean useReservedSpace) Creates a StorageTierView using the actual StorageTier.

Method Summary

Modifier and Type	Method and Description
StorageDirView	getDirView(int dirIndex) Returns a directory view for the given index.
Collection<StorageDirView>	getDirViews()
String	getTierViewAlias()
int	getTierViewOrdinal()

Methods inherited from class java.lang.Object

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

Constructor Detail

StorageTierView

public StorageTierView(StorageTier tier)

Creates a StorageTierView using the actual StorageTier.

Parameters:

tier - which the tierView is constructed from

StorageTierView

public StorageTierView(StorageTier tier,
                       boolean useReservedSpace)

Creates a StorageTierView using the actual StorageTier.

Parameters:

tier - which the tierView is constructed from

useReservedSpace - whether to include reserved space in available bytes

Method Detail

getDirViews

public Collection<StorageDirView> getDirViews()

Returns:

a list of directory views in this storage tier view

getDirView

public StorageDirView getDirView(int dirIndex)

Returns a directory view for the given index.

Parameters:

dirIndex - the directory view index

Returns:

a directory view

getTierViewAlias

public String getTierViewAlias()

Returns:

the storage tier view alias

getTierViewOrdinal

public int getTierViewOrdinal()

Returns:

the ordinal value of the storage tier view