net.sf.saxon.expr.sort
Class IntToIntArrayMap

java.lang.Object
  extended by 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


Copyright (c) 2004-2010 Saxonica Limited. All rights reserved.