javatools.datatypes
Class DoubleHashMap<K>

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractSet<K>
          javatools.datatypes.DoubleHashMap<K>

Type Parameters:

K -

All Implemented Interfaces:

java.lang.Iterable<K>, java.util.Collection<K>, java.util.Set<K>

public class DoubleHashMap<K>
extends java.util.AbstractSet<K>

This class is part of the Java Tools (see http://mpii.de/yago-naga/javatools). It is licensed under the Creative Commons Attribution License (see http://creativecommons.org/licenses/by/3.0) by the YAGO-NAGA team (see http://mpii.de/yago-naga). This class implements a HashMap with double values.

Author:

Fabian M. Suchanek

Constructor Summary

DoubleHashMap()
Constructor

DoubleHashMap(K... keys)
Creates a DoubleHashMap with these keys set to 1

Method Summary

void	add(java.util.Collection<K> set) increases the counters
void	add(DoubleHashMap<K> countBindings) Adds all integer values up
boolean	add(K e)
boolean	add(K key, double delta) Increases a value, true for 'added new key with delta as value', false for 'increased existing value'
void	clear()
double	computeSum() Computes the sum
boolean	contains(java.lang.Object o)
boolean	containsKey(java.lang.Object key) True if value is there
java.util.List<K>	decreasingKeys() returns the keys in decreasing order
boolean	equals(java.lang.Object o)
double	findMax() Finds the maximum value
double	get(K key) Retrieves a value
double	get(K key, int defaultValue) Retrieves a value
int	hashCode()
boolean	increase(K key) Increases a value, true for 'added new key with value 1', false for 'increased existing value'
java.util.List<K>	increasingKeys() returns the keys in increasing order
java.util.Iterator<K>	iterator()
PeekIterator<K>	keys() Returns keys.
static void	main(java.lang.String[] args) Test
boolean	put(K key, double value) Adds a key, true for 'added the key as new', false for 'overwrote existing value'
int	size()
java.lang.String	toString()

Methods inherited from class java.util.AbstractSet

removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, isEmpty, remove, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

addAll, containsAll, isEmpty, remove, retainAll, toArray, toArray

Constructor Detail

DoubleHashMap

public DoubleHashMap()

Constructor

DoubleHashMap

public DoubleHashMap(K... keys)

Creates a DoubleHashMap with these keys set to 1

Method Detail

get

public double get(K key)

Retrieves a value

get

public double get(K key,
                  int defaultValue)

Retrieves a value

containsKey

public boolean containsKey(java.lang.Object key)

True if value is there

add

public boolean add(K key,
                   double delta)

Increases a value, true for 'added new key with delta as value', false for 'increased existing value'

increase

public boolean increase(K key)

Increases a value, true for 'added new key with value 1', false for 'increased existing value'

keys

public PeekIterator<K> keys()

Returns keys. Can be used only once.

put

public boolean put(K key,
                   double value)

Adds a key, true for 'added the key as new', false for 'overwrote existing value'

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Test

Throws:

java.lang.Exception

iterator

public java.util.Iterator<K> iterator()

Specified by:

iterator in interface java.lang.Iterable<K>

Specified by:

iterator in interface java.util.Collection<K>

Specified by:

iterator in interface java.util.Set<K>

Specified by:

iterator in class java.util.AbstractCollection<K>

size

public int size()

Specified by:

size in interface java.util.Collection<K>

Specified by:

size in interface java.util.Set<K>

Specified by:

size in class java.util.AbstractCollection<K>

add

public boolean add(K e)

Specified by:

add in interface java.util.Collection<K>

Specified by:

add in interface java.util.Set<K>

Overrides:

add in class java.util.AbstractCollection<K>

clear

public void clear()

Specified by:

clear in interface java.util.Collection<K>

Specified by:

clear in interface java.util.Set<K>

Overrides:

clear in class java.util.AbstractCollection<K>

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection<K>

Specified by:

contains in interface java.util.Set<K>

Overrides:

contains in class java.util.AbstractCollection<K>

add

public void add(DoubleHashMap<K> countBindings)

Adds all integer values up

add

public void add(java.util.Collection<K> set)

increases the counters

toString

public java.lang.String toString()

Overrides:

toString in class java.util.AbstractCollection<K>

increasingKeys

public java.util.List<K> increasingKeys()

returns the keys in increasing order

decreasingKeys

public java.util.List<K> decreasingKeys()

returns the keys in decreasing order

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Collection<K>

Specified by:

equals in interface java.util.Set<K>

Overrides:

equals in class java.util.AbstractSet<K>

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<K>

Specified by:

hashCode in interface java.util.Set<K>

Overrides:

hashCode in class java.util.AbstractSet<K>

findMax

public double findMax()

Finds the maximum value

computeSum

public double computeSum()

Computes the sum