de.uni_leipzig.bf.cluster
Class ClusterCache

java.lang.Object
  de.uni_leipzig.bf.cluster.ClusterCache

public class ClusterCache
extends java.lang.Object

ClusterCache implements a very simple caching strategy.

Field Summary

protected java.util.HashMap<java.lang.Integer,java.util.TreeSet<java.lang.Integer>>	m_cache
protected java.util.HashMap<java.util.TreeSet<java.lang.Integer>,java.lang.Integer>	m_cacheHistory
protected boolean	m_enabled
protected int	m_id
protected java.util.ArrayList<java.util.TreeSet<java.lang.Integer>>	m_log

Constructor Summary

ClusterCache()
ClusterCache enabled.

ClusterCache(boolean enabled)

Method Summary

java.util.TreeSet<java.lang.Integer>	add(java.util.TreeSet<java.lang.Integer> finalElements) Adds new final cluster elements to m_cache and all logged elements in m_log for this cluster to m_cacheHistory.
java.util.TreeSet<java.lang.Integer>	cache(java.util.TreeSet<java.lang.Integer> elements) Checks for cached elements in m_cacheHistory or adds elements to m_log.

Methods inherited from class java.lang.Object

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

Field Detail

m_cache

protected java.util.HashMap<java.lang.Integer,java.util.TreeSet<java.lang.Integer>> m_cache

m_cacheHistory

protected java.util.HashMap<java.util.TreeSet<java.lang.Integer>,java.lang.Integer> m_cacheHistory

m_enabled

protected boolean m_enabled

m_id

protected int m_id

m_log

protected java.util.ArrayList<java.util.TreeSet<java.lang.Integer>> m_log

Constructor Detail

ClusterCache

public ClusterCache()

ClusterCache enabled.

ClusterCache

public ClusterCache(boolean enabled)

Parameters:

enabled - true to enable cache

Method Detail

add

public java.util.TreeSet<java.lang.Integer> add(java.util.TreeSet<java.lang.Integer> finalElements)

Adds new final cluster elements to m_cache and all logged elements in m_log for this cluster to m_cacheHistory. Clears m_log and increments id for next cluster calculations.

Parameters:

finalElements - the final cluster elements

Returns:

same as parameter, the final cluster elements

cache

public java.util.TreeSet<java.lang.Integer> cache(java.util.TreeSet<java.lang.Integer> elements)

Checks for cached elements in m_cacheHistory or adds elements to m_log.

Parameters:

elements -

Returns:

final elements or null