de.gerdiproject.harvest.etls.utils

Class TimestampedList<T>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.AbstractSequentialList<E>

java.util.LinkedList<TimestampedEntry<T>>

de.gerdiproject.harvest.etls.utils.TimestampedList<T>

Type Parameters:

T - the type of the stored values

All Implemented Interfaces:

Serializable, Cloneable, Iterable<TimestampedEntry<T>>, Collection<TimestampedEntry<T>>, Deque<TimestampedEntry<T>>, List<TimestampedEntry<T>>, Queue<TimestampedEntry<T>>

public class TimestampedList<T>
extends LinkedList<TimestampedEntry<T>>

This class stores a list of values and timestamps that indicate when the values were added. The oldest values are removed when the set capacity reaches its limit.

Author:

Robin Weiss

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor and Description
TimestampedList(int capacity) Constructor that allows to set the max amount of items in the list.
TimestampedList(T initialValue, int capacity) Constructor that allows to set the max amount of items in the list and the initial value.

Method Summary

Modifier and Type	Method and Description
void	addAllSorted(Collection<TimestampedEntry<T>> other) Adds elements of another TimestampedList to the bottom of this list.
void	addValue(T value) Adds a new value and the current timestamp to the list.
long	getLatestTimestamp() Returns the timestamp of the latest value of the list.
T	getLatestValue() Returns the latest value of the list.
String	toString()

Methods inherited from class java.util.LinkedList

add, add, addAll, addAll, addFirst, addLast, clear, clone, contains, descendingIterator, element, get, getFirst, getLast, indexOf, lastIndexOf, listIterator, offer, offerFirst, offerLast, peek, peekFirst, peekLast, poll, pollFirst, pollLast, pop, push, remove, remove, remove, removeFirst, removeFirstOccurrence, removeLast, removeLastOccurrence, set, size, spliterator, toArray, toArray

Methods inherited from class java.util.AbstractSequentialList

iterator

Methods inherited from class java.util.AbstractList

equals, hashCode, listIterator, removeRange, subList

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, removeAll, retainAll

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

containsAll, equals, hashCode, isEmpty, iterator, listIterator, removeAll, replaceAll, retainAll, sort, subList

Methods inherited from interface java.util.Deque

iterator

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

TimestampedList

public TimestampedList(int capacity)

Constructor that allows to set the max amount of items in the list.

Parameters:

capacity - the max amount of items in the list

TimestampedList

public TimestampedList(T initialValue,
                       int capacity)

Constructor that allows to set the max amount of items in the list and the initial value.

Parameters:

initialValue - the first item on the list

capacity - the max amount of items in the list

Method Detail

addValue

public void addValue(T value)

Adds a new value and the current timestamp to the list.

Parameters:

value - the new value

addAllSorted

public void addAllSorted(Collection<TimestampedEntry<T>> other)

Adds elements of another TimestampedList to the bottom of this list.

Parameters:

other - the TimestampedList that is appended

getLatestValue

public T getLatestValue()

Returns the latest value of the list.

Returns:

the latest value of the list

getLatestTimestamp

public long getLatestTimestamp()

Returns the timestamp of the latest value of the list.

Returns:

the timestamp of the latest value of the list

toString

public String toString()

Overrides:

toString in class AbstractCollection<TimestampedEntry<T>>