alluxio.master.file.meta

Class TtlBucket

java.lang.Object

alluxio.master.file.meta.TtlBucket

All Implemented Interfaces:

Comparable<TtlBucket>

@ThreadSafe
public final class TtlBucket
extends Object
implements Comparable<TtlBucket>

A bucket with all inodes whose ttl value lies in the bucket's time interval. The bucket's time interval starts at a certain time and lasts for PropertyKey.MASTER_TTL_CHECKER_INTERVAL_MS.

Constructor Summary

Constructors

Constructor and Description
TtlBucket(long startTimeMs) Creates a new instance of TtlBucket.

Method Summary

Modifier and Type	Method and Description
boolean	addInode(Inode inode) Adds a inode to the bucket.
int	compareTo(TtlBucket ttlBucket) Compares this bucket's TTL interval start time to that of another bucket.
boolean	equals(Object o) Compares to a specific object.
Collection<Inode>	getInodes()
long	getTtlIntervalEndTimeMs()
static long	getTtlIntervalMs()
long	getTtlIntervalStartTimeMs()
int	hashCode() Returns the hash code for the TtlBucket.
boolean	removeInode(InodeView inode) Removes a inode from the bucket.
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

TtlBucket

public TtlBucket(long startTimeMs)

Creates a new instance of TtlBucket.

Parameters:

startTimeMs - the start time to use

Method Detail

getTtlIntervalStartTimeMs

public long getTtlIntervalStartTimeMs()

Returns:

the ttl interval start time in milliseconds

getTtlIntervalEndTimeMs

public long getTtlIntervalEndTimeMs()

Returns:

the ttl interval end time in milliseconds

getTtlIntervalMs

public static long getTtlIntervalMs()

Returns:

the ttl interval in milliseconds

getInodes

public Collection<Inode> getInodes()

Returns:

the set of all inodes in the bucket backed by the internal set, changes made to the returned set will be shown in the internal set, and vice versa

addInode

public boolean addInode(Inode inode)

Adds a inode to the bucket.

Parameters:

inode - the inode to be added

Returns:

true if a new inode was added to the bucket

removeInode

public boolean removeInode(InodeView inode)

Removes a inode from the bucket.

Parameters:

inode - the inode to be removed

Returns:

true if a inode was removed

size

public int size()

Returns:

the number of inodes in the bucket

compareTo

public int compareTo(TtlBucket ttlBucket)

Compares this bucket's TTL interval start time to that of another bucket.

Specified by:

compareTo in interface Comparable<TtlBucket>

Parameters:

ttlBucket - the bucket to be compared to

Returns:

0 when return values of getTtlIntervalStartTimeMs() from the two buckets are the same, -1 when that value of current instance is smaller, otherwise, 1

equals

public boolean equals(Object o)

Compares to a specific object.

Overrides:

equals in class Object

Parameters:

o - the object to compare

Returns:

true if object is also TtlBucket and represents the same TtlIntervalStartTime

hashCode

public int hashCode()

Returns the hash code for the TtlBucket.

Overrides:

hashCode in class Object

Returns:

The hash code value for this TtlBucket