net.sf.saxon.sort

Class IntToIntHashMap

public class IntToIntHashMap extends Object implements Serializable

A hash table that maps int keys to int values.

Author: Dave Hale, Landmark Graphics Dominique Devienne Michael Kay: created this class based on IntHashMap

Constructor Summary
	IntToIntHashMap() Initializes a map with a capacity of 8 and a load factor of 0,25.
	IntToIntHashMap(int capacity) Initializes a map with the given capacity and a load factor of 0,25.
	IntToIntHashMap(int capacity, double factor) Constructs a new map with initial capacity, and load factor.

Method Summary
void	clear() Clears the map.
boolean	find(int key) Finds a key in the map.
int	get(int key) Gets the value for this key.
void	put(int key, int value) Adds a key-value pair to the map.
boolean	remove(int key) Removes a key from the map.
void	setDefaultValue(int defaultValue) Set the value to be returned to indicate an unused entry
int	size() Gets the size of the map.

Constructor Detail

IntToIntHashMap

public IntToIntHashMap()

Initializes a map with a capacity of 8 and a load factor of 0,25.

IntToIntHashMap

public IntToIntHashMap(int capacity)

Initializes a map with the given capacity and a load factor of 0,25.

Parameters: capacity the initial capacity.

IntToIntHashMap

public IntToIntHashMap(int capacity, double factor)

Constructs a new map with initial capacity, and load factor.

The capacity is the number of keys that can be mapped without resizing the arrays in which keys and values are stored. For efficiency, only a fraction of the elements in those arrays are used. That fraction is the specified load factor. The initial length of the arrays equals the smallest power of two not less than the ratio capacity/factor. The capacity of the map is increased, as necessary. The maximum number of keys that can be mapped is 2^30.

Parameters: capacity the initial capacity. factor the load factor.

Parameters: key Key

Returns: true if the key is mapped