Class IntersectionSimilarity.TinyBag

java.lang.Object

org.apache.commons.text.similarity.IntersectionSimilarity.TinyBag

Enclosing class:

IntersectionSimilarity<T>

private final class IntersectionSimilarity.TinyBag
extends Object

A minimal implementation of a Bag that can store elements and a count.

For the intended purpose the Bag does not have to be a Collection. It does not even have to know its own size.

Since:

1.7

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<T, IntersectionSimilarity.BagCount>	map	The backing map.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TinyBag(int initialCapacity)	Create a new tiny bag.

Method Summary

Modifier and Type	Method	Description
private void	add(T object)	Adds a new element to the bag, incrementing its count in the underlying map.
private Set<Map.Entry<T, IntersectionSimilarity.BagCount>>	entrySet()	Returns a Set view of the mappings contained in this bag.
private int	getCount(Object object)	Returns the number of occurrence of the given element in this bag by looking up its count in the underlying map.
private int	uniqueElementSize()	Gets the number of unique elements in the bag.

Methods inherited from class Object

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

Field Details

map

private final Map<T, IntersectionSimilarity.BagCount> map

The backing map.

Constructor Details

TinyBag

private TinyBag(int initialCapacity)

Create a new tiny bag.

Parameters:

initialCapacity - the initial capacity

Method Details

add

private void add(T object)

Adds a new element to the bag, incrementing its count in the underlying map.

Parameters:

object - the object to add.

entrySet

private Set<Map.Entry<T, IntersectionSimilarity.BagCount>> entrySet()

Returns a Set view of the mappings contained in this bag.

Returns:

The Set view.

getCount

private int getCount(Object object)

Returns the number of occurrence of the given element in this bag by looking up its count in the underlying map.

Parameters:

object - the object to search for.

Returns:

The number of occurrences of the object, zero if not found.

uniqueElementSize

private int uniqueElementSize()

Gets the number of unique elements in the bag.

Returns:

The unique element size.