org.apache.bookkeeper.client

Interface DistributionSchedule.WriteSet

Enclosing interface:

DistributionSchedule

public static interface DistributionSchedule.WriteSet

A write set represents the set of bookies to which a request will be written. The set consists of a list of indices which can be used to lookup the bookie in the ensemble.

Method Summary

Modifier and Type	Method and Description
void	addMissingIndices(int maxIndex) If we want a write set to cover all bookies in an ensemble of size X, then all of the index from 0..X must exist in the write set.
boolean	contains(int i) Whether the set contains the given index.
DistributionSchedule.WriteSet	copy() Make a deep copy of this write set.
int	get(int i) Get the index at index i.
int	indexOf(int index) Index of a specified bookie index.
void	moveAndShift(int from, int to) Move an index from one position to another, shifting the other indices accordingly.
void	recycle() Recycle write set object when not in use.
int	set(int i, int index) Set the index at index i.
int	size() The number of indexes in the write set.
void	sort() Sort the indices.

Method Detail

size

int size()

The number of indexes in the write set.

contains

boolean contains(int i)

Whether the set contains the given index.

get

int get(int i)

Get the index at index i.

set

int set(int i,
        int index)

Set the index at index i.

Returns:

the previous value at that index.

sort

void sort()

Sort the indices.

indexOf

int indexOf(int index)

Index of a specified bookie index. -1 if not found.

addMissingIndices

void addMissingIndices(int maxIndex)

If we want a write set to cover all bookies in an ensemble of size X, then all of the index from 0..X must exist in the write set. This method appends those which are missing to the end of the write set.

moveAndShift

void moveAndShift(int from,
                  int to)

Move an index from one position to another, shifting the other indices accordingly.

recycle

void recycle()

Recycle write set object when not in use.

copy

DistributionSchedule.WriteSet copy()

Make a deep copy of this write set.