com.github.fedorchuck.developers_notification.helpers
Class Lifetime<V>

java.lang.Object
  com.github.fedorchuck.developers_notification.helpers.Lifetime<V>

public class Lifetime<V>
extends java.lang.Object

Stack with the lifetime of objects. This stack automatic remove objects which are obsolete.

Author: Volodymyr Fedorchuk

Since:

0.2.0

Constructor Summary

Lifetime(long timeToLive, long updateTimerInterval)
Constructor of stack.

Method Summary

boolean	contains(V object) Returns true if this stack contains the specified element.
V	get(int index) Returns the element at the specified position in this stack.
V	getOldest() Returns the element at the specified position in this stack.
void	put(V value) Appends the specified element to the end of this stack.
int	size() Returns the number of elements in this stack.

Methods inherited from class java.lang.Object

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

Constructor Detail

Lifetime

public Lifetime(long timeToLive,
                long updateTimerInterval)

Constructor of stack. It receive data about time of living for added objects and time of interval updating for find and remove obsolete objects.

Parameters:

timeToLive - time of living for added objects

updateTimerInterval - time of interval updating for find and remove obsolete objects

Since:

0.2.0

Method Detail

put

public void put(V value)

Appends the specified element to the end of this stack. Append JUST unique elements.

Parameters:

value - element to be appended to this stack

Since:

0.2.0

get

public V get(int index)

Returns the element at the specified position in this stack.

Parameters:

index - index of the element to return

Returns:

the element at the specified position in this stack

Throws:

java.lang.IndexOutOfBoundsException - if the index is out of range

index less than 0 || index more or equal size()

Since:

0.2.0

getOldest

public V getOldest()

Returns the element at the specified position in this stack.

Returns:

the first element in this stack or null if this stack is empty

Since:

0.2.0

size

public int size()

Returns the number of elements in this stack.

Returns:

the number of elements in this stack

Since:

0.2.0

contains

public boolean contains(V object)

Returns true if this stack contains the specified element.

Parameters:

object - element whose presence in this stack is to be tested

Returns:

true if this stack contains the specified element

Since:

0.2.0