org.xmlecho.palomar.cache
Class TTLPolicy

java.lang.Object
  org.xmlecho.palomar.cache.TTLPolicy

All Implemented Interfaces:

Policy

public class TTLPolicy

extends java.lang.Object

implements Policy

Class defines the Time To Live(TTL) policy. Encapsulates the details of the life time of a cache object. Given a cached object, this can determine the objects expired state.

Constructor Summary

TTLPolicy(long lifeTime)
construct with time to live in seconds

Method Summary

long	getLifeTime() Method for getting the life time of a cached object
java.lang.String	getTag() Method for simple identification of a policy.
boolean	hasExpired(Holder objectHolder) Evaluates the state of a cached object.
void	setLifeTimeHours(long lifeTime) sets the life time for a cached object
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

TTLPolicy

public TTLPolicy(long lifeTime)

construct with time to live in seconds

Method Detail

hasExpired

public boolean hasExpired(Holder objectHolder)

Evaluates the state of a cached object. If true, the object may be refreshed/deleted from the cache.

Specified by:

hasExpired in interface Policy

Parameters:

objectHolder - the object to be analysed for its state.

See Also:

ObjectHolder

setLifeTimeHours

public void setLifeTimeHours(long lifeTime)

sets the life time for a cached object

Parameters:

lifeTime - time in seconds

getLifeTime

public long getLifeTime()

Method for getting the life time of a cached object

getTag

public java.lang.String getTag()

Method for simple identification of a policy.

Specified by:

getTag in interface Policy

Returns:

String the name of the policy

toString

public java.lang.String toString()