com.newrelic.agent

Class TimedTokenSet

java.lang.Object

com.newrelic.agent.TimedTokenSet

public class TimedTokenSet
extends java.lang.Object

This implementation relies on a caffeine cache, which is like a map ( it is built on top of ConcurrentHashMap). There is no set implementation which is why the map stores the token reference as both the key and value. Note, changes to token behavior here should be made consistent with the old async api in AsyncTransactionService.

Constructor Summary

Constructors

Constructor and Description
TimedTokenSet(int timeOut, java.util.concurrent.TimeUnit unit, ExpirationService expirationService)

Method Summary

Modifier and Type	Method and Description
void	cleanUp() A utility method that some implementations may require, in order to force the collection to time out and remove entries.
void	put(TokenImpl token) Add a value to the set.
void	refresh(TokenImpl token) Refresh the last access time of a token.
boolean	remove(TokenImpl token) Removes one entry from the set, the removal cause should be RemovalCause.EXPLICIT.
void	removeAll() Removes any and all entries from the set, the removal cause for each should be RemovalCause.EXPLICIT.
int	timedOutCount() The number of entries in the cache that were removed due to timing out.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimedTokenSet

public TimedTokenSet(int timeOut,
                     java.util.concurrent.TimeUnit unit,
                     ExpirationService expirationService)

Method Detail

timedOutCount

public int timedOutCount()

The number of entries in the cache that were removed due to timing out.

remove

public boolean remove(TokenImpl token)

Removes one entry from the set, the removal cause should be RemovalCause.EXPLICIT.

removeAll

public void removeAll()

Removes any and all entries from the set, the removal cause for each should be RemovalCause.EXPLICIT.

put

public void put(TokenImpl token)

Add a value to the set.

cleanUp

public void cleanUp()

A utility method that some implementations may require, in order to force the collection to time out and remove entries. For example, caffeine caches do not use a thread to monitor entries to time them out, but does incremental clean up work during normal operation. This may synchronize on entire the collection.

refresh

public void refresh(TokenImpl token)

Refresh the last access time of a token.