eu.hgross.blaubot.core.acceptor.discovery

Class TimeoutList<T>

java.lang.Object

eu.hgross.blaubot.core.acceptor.discovery.TimeoutList<T>

public class TimeoutList<T>
extends java.lang.Object

Helper to determine if an object is alive or dead. Can be used for keepAlive purposes as well as a seen cache for SDP lookups or similar use cases.

Constructor Summary

Constructors

Constructor and Description
TimeoutList(long timeout)

Method Summary

Modifier and Type	Method and Description
boolean	contains(T item) Checks whether an item is considered alive
java.util.Set<T>	getItems() Returns a list (copy) of alive items.
void	remove(T item) Removes an item from the alive list.
void	report(T item) Reports an item as alive.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeoutList

public TimeoutList(long timeout)

Parameters:

timeout - the timeout after which a device is assumed to be dead

Method Detail

report

public void report(T item)

Reports an item as alive.

Parameters:

item - the item to be reported as alive

remove

public void remove(T item)

Removes an item from the alive list.

Parameters:

item - the item that is no longer alive.

contains

public boolean contains(T item)

Checks whether an item is considered alive

Parameters:

item - the item to check for

Returns:

true, if item is alive

getItems

public java.util.Set<T> getItems()

Returns a list (copy) of alive items.

Returns:

the list of alive items