org.terracotta.modules.ehcache.store
Class EhcacheEvaluator

java.lang.Object
  org.terracotta.modules.ehcache.store.EhcacheEvaluator

All Implemented Interfaces:

Evaluator<EhcacheConstraint>

public class EhcacheEvaluator
extends Object
implements Evaluator<EhcacheConstraint>

Ehcache evaluator, which lets Jobs be executed on certain node, depending of the locality of the data in a Ehcache

Author:

Alex Snaps

Constructor Summary

EhcacheEvaluator(ConcurrentMap<String,String> nodeIdToInstanceId)
Constructor

Method Summary

boolean	matches(EhcacheConstraint constraint) Evaluates the constraint against local node.
List<String>	suitedNodes(EhcacheConstraint constraint) Returns a list of best suited node (instanceId) based on the constraint
void	verify(EhcacheConstraint constraint) Doesn't do anything

Methods inherited from class java.lang.Object

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

Constructor Detail

EhcacheEvaluator

public EhcacheEvaluator(ConcurrentMap<String,String> nodeIdToInstanceId)

Constructor

Parameters:

nodeIdToInstanceId - the Map of nodeId (Terracotta) to instanceId (Quartz) mapping file (read only)

Method Detail

matches

public boolean matches(EhcacheConstraint constraint)

Evaluates the constraint against local node.

Specified by:

matches in interface Evaluator<EhcacheConstraint>

Parameters:

constraint - The constraint to evaluate

Returns:

true if local node is a match

See Also:

Constraint#matches(Object)

suitedNodes

public List<String> suitedNodes(EhcacheConstraint constraint)

Returns a list of best suited node (instanceId) based on the constraint

Specified by:

suitedNodes in interface Evaluator<EhcacheConstraint>

Parameters:

constraint - To find best suited nodes for

Returns:

List of best suited Quartz instanceId

verify

public void verify(EhcacheConstraint constraint)

Doesn't do anything

Specified by:

verify in interface Evaluator<EhcacheConstraint>

Parameters:

constraint - The constraint to validate