Package it.unitn.disi.ds1.qtop

Class PairsHistory

java.lang.Object

java.util.AbstractCollection<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>

java.util.AbstractList<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>

java.util.ArrayList<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>

it.unitn.disi.ds1.qtop.PairsHistory

All Implemented Interfaces:

Serializable, Cloneable, Iterable<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>, Collection<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>, List<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>, RandomAccess, SequencedCollection<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>

public class PairsHistory
extends ArrayList<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>

PairsHistory class to store the history of the pairs and the final decision associated to it

See Also:

• Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
PairsHistory()	Default constructor.
PairsHistory(@NotNull PairsHistory sourceObject)	Copy constructor.

Method Summary

Modifier and Type	Method	Description
Utils.EpochPair	getLatest()	Get the latest epoch and iteration.
Utils.EpochPair	getLatestCommitted()	Get the epoch and iteration of the last commited transaction, by commited transaction we consider a transaction that has non-pending state.
void	insert(int e, int i, int element)	Insert a new element in the history.
int	readValidVariable()	Read the last valid, i.e., committed, variable.
void	setState(int e, int i, Utils.Decision finalState)	Get the state of the given epoch and iteration.
String	toString()

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, addFirst, addLast, clear, clone, contains, ensureCapacity, equals, forEach, get, getFirst, getLast, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeFirst, removeIf, removeLast, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractCollection

containsAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, stream, toArray

Methods inherited from interface java.util.List

containsAll, reversed

Constructor Details

PairsHistory

public PairsHistory()

Default constructor.

PairsHistory

public PairsHistory(@NotNull
 @NotNull PairsHistory sourceObject)

Copy constructor.

Parameters:

sourceObject - source object to copy

Method Details

setState

public void setState(int e,
 int i,
 Utils.Decision finalState)

Get the state of the given epoch and iteration.

Parameters:

e - epoch

i - iteration

finalState - final state to set

readValidVariable

public int readValidVariable()

Read the last valid, i.e., committed, variable.

Returns:

the last valid variable, -1 in case none is set

insert

public void insert(int e,
 int i,
 int element)

Insert a new element in the history.

Parameters:

e - epoch

i - iteration

element - element to insert

getLatest

public Utils.EpochPair getLatest()

Get the latest epoch and iteration.

Returns:

the latest epoch and iteration

getLatestCommitted

public Utils.EpochPair getLatestCommitted()

Get the epoch and iteration of the last commited transaction, by commited transaction we consider a transaction that has non-pending state.

Returns:

the latest epoch and iteration committed

toString

public String toString()

Overrides:

toString in class AbstractCollection<ArrayList<akka.japi.Pair<Integer,Utils.Decision>>>