voldemort.utils
Class MoveMap

java.lang.Object
  voldemort.utils.MoveMap

public class MoveMap
extends java.lang.Object

Two dimensional counter. Currently used to count moves in a rebalancing plan. The toString method is tailored to this use case. The structure may be generally useful though, the 'indices' is hard-coded to be an Integer at this time.

Constructor Summary

MoveMap(java.util.Set<java.lang.Integer> ids)

Method Summary

int	add(int fromId, int toId, int amount)
void	add(MoveMap rhs)
int	get(int fromId, int toId)
java.util.Map<java.lang.Integer,java.lang.Integer>	groupByFrom()
java.util.Map<java.lang.Integer,java.lang.Integer>	groupByTo()
int	increment(int fromId, int toId)
java.lang.String	toFlowString()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MoveMap

public MoveMap(java.util.Set<java.lang.Integer> ids)

Method Detail

increment

public int increment(int fromId,
                     int toId)

add

public int add(int fromId,
               int toId,
               int amount)

get

public int get(int fromId,
               int toId)

add

public void add(MoveMap rhs)

groupByFrom

public java.util.Map<java.lang.Integer,java.lang.Integer> groupByFrom()

groupByTo

public java.util.Map<java.lang.Integer,java.lang.Integer> groupByTo()

toFlowString

public java.lang.String toFlowString()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object