org.biojava.utils
Class SmallMap

java.lang.Object
  java.util.AbstractMap
      org.biojava.utils.SmallMap

All Implemented Interfaces:

Serializable, Map

public class SmallMap
extends AbstractMap
implements Serializable

Lightweight implementation of Map which uses little memory to store a small number of mappings, at the expense of scalability. Not recommended for more than 20-30 mappings.

This implementation has the useful property that the iteration order is the same as the order in which mappings are added.

Author:

Thomas Down, Len Trigg

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry

Constructor Summary

SmallMap()

SmallMap(int size)

SmallMap(Map m)

Method Summary

boolean	containsKey(Object key)
Set	entrySet()
Object	get(Object key)
Set	keySet()
Object	put(Object key, Object value)
int	size()

Methods inherited from class java.util.AbstractMap

clear, clone, containsValue, equals, hashCode, isEmpty, putAll, remove, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SmallMap

public SmallMap()

SmallMap

public SmallMap(int size)

SmallMap

public SmallMap(Map m)

Method Detail

get

public Object get(Object key)

Specified by:

get in interface Map

Overrides:

get in class AbstractMap

Throws:

NullPointerException - if key is null

put

public Object put(Object key,
                  Object value)

Specified by:

put in interface Map

Overrides:

put in class AbstractMap

Throws:

NullPointerException - if key is null

keySet

public Set keySet()

Specified by:

keySet in interface Map

Overrides:

keySet in class AbstractMap

entrySet

public Set entrySet()

Specified by:

entrySet in interface Map

Specified by:

entrySet in class AbstractMap

size

public int size()

Specified by:

size in interface Map

Overrides:

size in class AbstractMap

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map

Overrides:

containsKey in class AbstractMap