org.terracotta.async.scatterpolicies
Class HashCodeScatterPolicy

java.lang.Object
  org.terracotta.async.scatterpolicies.HashCodeScatterPolicy

All Implemented Interfaces:

ItemScatterPolicy<Object>

public class HashCodeScatterPolicy
extends Object
implements ItemScatterPolicy<Object>

ItemScatterPolicy that will select the bucket based on the Item's hash code. This provides a Bucket (and worker Thread) to item affinity, so that an items with the same hash code will always be processed by the same bucket.

Constructor Summary

HashCodeScatterPolicy()

Method Summary

int	selectBucket(int count, Object item) Returns a bucket index in the range 0 to (count - 1) to which an item should be assigned.

Methods inherited from class java.lang.Object

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

Constructor Detail

HashCodeScatterPolicy

public HashCodeScatterPolicy()

Method Detail

selectBucket

public int selectBucket(int count,
                        Object item)

Description copied from interface: ItemScatterPolicy

Returns a bucket index in the range 0 to (count - 1) to which an item should be assigned.

Specified by:

selectBucket in interface ItemScatterPolicy<Object>

Parameters:

count - exclusive maximum index

item - the item we are scattering across the buckets

Returns:

bucket index to use