at.molindo.utils.collections

Class CounterMap<T>

java.lang.Object

at.molindo.utils.collections.CounterMap<T>

All Implemented Interfaces:

Iterable<Pair<T,Integer>>

public class CounterMap<T>
extends Object
implements Iterable<Pair<T,Integer>>

Field Summary

Fields

Modifier and Type	Field and Description
static int	UNKNOWN

Constructor Summary

Constructors

Constructor and Description
CounterMap()
CounterMap(Collection<T> objects)
CounterMap(Collection<T> objects, int start)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(T obj, int start)
boolean	contains(T obj)
Pair<T,Integer>	get(T obj)
int	getCount(T obj)
Pair<T,Integer>	getMax()
int	increment(T obj)
Iterator<Pair<T,Integer>>	iterator()
int	remove(T obj)
int	size()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

UNKNOWN

public static final int UNKNOWN

See Also:

Constant Field Values

Constructor Detail

CounterMap

public CounterMap()

CounterMap

public CounterMap(Collection<T> objects)

CounterMap

public CounterMap(Collection<T> objects,
          int start)

Method Detail

getCount

public int getCount(T obj)

get

public Pair<T,Integer> get(T obj)

increment

public int increment(T obj)

contains

public boolean contains(T obj)

add

public boolean add(T obj,
          int start)

remove

public int remove(T obj)

size

public int size()

toString

public String toString()

Overrides:

toString in class Object

iterator

public Iterator<Pair<T,Integer>> iterator()

Specified by:

iterator in interface Iterable<Pair<T,Integer>>

Returns:

an Iterator in insertion order

getMax

public Pair<T,Integer> getMax()

Returns:

the Pair with the hightes count. If multiple keys have the same count, the first one encountered (insertion order) is returned. If the map is empty, a Pair with an empty key and UNKNOWN count is returned