net.sf.saxon.expr.sort
Class IntToIntArrayMap

java.lang.Object
  net.sf.saxon.expr.sort.IntToIntArrayMap

All Implemented Interfaces:

Serializable, IntToIntMap

public class IntToIntArrayMap
extends Object
implements IntToIntMap, Serializable

An implementation of IntToIntMap that relies on serial searching, and is therefore optimized for very small map sizes

See Also:

Serialized Form

Constructor Summary

IntToIntArrayMap()
Create an initial empty map with default space allocation

IntToIntArrayMap(int capacity)
Create an initial empty map with a specified initial capacity

Method Summary

void	clear() Clear the map.
boolean	find(int key) Finds a key in the map.
int	get(int key) Gets the value for this key.
int	getDefaultValue() Get the default value used to indicate an unused entry
IntIterator	keyIterator() Get an iterator over the integer key values held in the hash map.
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.

Methods inherited from class java.lang.Object

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

Constructor Detail

IntToIntArrayMap

public IntToIntArrayMap()

Create an initial empty map with default space allocation

IntToIntArrayMap

public IntToIntArrayMap(int capacity)

Create an initial empty map with a specified initial capacity

Parameters:

capacity - the initial capacity (the number of entries that can be held before more space is allocated)

Method Detail

clear

public void clear()

Clear the map.

Specified by:

clear in interface IntToIntMap

find

public boolean find(int key)

Finds a key in the map.

Specified by:

find in interface IntToIntMap

Parameters:

key - Key

Returns:

true if the key is mapped

get

public int get(int key)

Gets the value for this key.

Specified by:

get in interface IntToIntMap

Parameters:

key - Key

Returns:

the value, or the default value if not found.

getDefaultValue

public int getDefaultValue()

Get the default value used to indicate an unused entry

Specified by:

getDefaultValue in interface IntToIntMap

Returns:

the value to be returned by get(int) if no entry exists for the supplied key

keyIterator

public IntIterator keyIterator()

Get an iterator over the integer key values held in the hash map.

The contents of the hash map must not be modified while this iterator remains in use

Specified by:

keyIterator in interface IntToIntMap

Returns:

an iterator whose next() call returns the key values (in arbitrary order)

put

public void put(int key,
                int value)

Adds a key-value pair to the map.

Specified by:

put in interface IntToIntMap

Parameters:

key - Key

value - Value

remove

public boolean remove(int key)

Removes a key from the map.

Specified by:

remove in interface IntToIntMap

Parameters:

key - Key to remove

Returns:

true if the value was removed

setDefaultValue

public void setDefaultValue(int defaultValue)

Set the value to be returned to indicate an unused entry

Specified by:

setDefaultValue in interface IntToIntMap

Parameters:

defaultValue - the value to be returned by get(int) if no entry exists for the supplied key

size

public int size()

Gets the size of the map.

Specified by:

size in interface IntToIntMap

Returns:

the size