org.processmining.hadoop.utils

Class Multiset<E>

java.lang.Object

org.processmining.hadoop.utils.Multiset<E>

Type Parameters:

E - Element

public class Multiset<E>
extends java.lang.Object

Generic multiset implementation. The multiset is implemented as a HashMap counting the number of appearances of each element in the multiset

Author:

shernandez

Constructor Summary

Constructors

Constructor and Description
Multiset() Multiset constructor

Method Summary

Modifier and Type	Method and Description
void	add(E e) Add an appearance of the element in the multiset
void	clear() Clear the multiset
boolean	contains(E e) Return true if the multiset contains the element
java.lang.Long	count(E e) Return the number of appearances of e in the set
java.util.Set<java.util.Map.Entry<E,java.lang.Long>>	entrySet() Return a set view of the mappings of this multiset
java.lang.Long	getTotalCount() Return the total number of appearances of the elements in the mutiset
boolean	isEmpty() Return true if the multiset is empty
java.util.Set<E>	keySet() Return a set view of the keys of this multiset
void	remove(E e) Remove an appearance of the element in the multiset
java.lang.Long	setCount(E e, java.lang.Long count) Return the previous count of the element e
int	size() Return the number of keys in the multiset
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Multiset

public Multiset()

Multiset constructor

Method Detail

count

public java.lang.Long count(E e)

Return the number of appearances of e in the set

Parameters:

e - Element

Returns:

Number of appearances of e in the set

setCount

public java.lang.Long setCount(E e,
                               java.lang.Long count)

Return the previous count of the element e

Parameters:

e - Element

count - New count

Returns:

The previous count of the element e (it could be null)

add

public void add(E e)

Add an appearance of the element in the multiset

Parameters:

e - Element

remove

public void remove(E e)

Remove an appearance of the element in the multiset

Parameters:

e - Element

contains

public boolean contains(E e)

Return true if the multiset contains the element

Parameters:

e - Element

Returns:

True if the multiset contains the element

isEmpty

public boolean isEmpty()

Return true if the multiset is empty

Returns:

True if the multiset is empty

clear

public void clear()

Clear the multiset

size

public int size()

Return the number of keys in the multiset

Returns:

The number of keys in the multiset

getTotalCount

public java.lang.Long getTotalCount()

Return the total number of appearances of the elements in the mutiset

Returns:

The total number of appearances of the elements in the mutiset

keySet

public java.util.Set<E> keySet()

Return a set view of the keys of this multiset

Returns:

A set view of the keys of this multiset

entrySet

public java.util.Set<java.util.Map.Entry<E,java.lang.Long>> entrySet()

Return a set view of the mappings of this multiset

Returns:

A set view of the mappings of this multiset

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object