net.ontopia.utils
Class GrabberMap<O,KG,VG>

java.lang.Object
  net.ontopia.utils.GrabberMap<O,KG,VG>

All Implemented Interfaces:

Map<KG,Collection<VG>>, CachedIF

public class GrabberMap<O,KG,VG>
extends Object
implements Map<KG,Collection<VG>>, CachedIF

INTERNAL: An implementation of Map that uses a key grabber and a value grabber to extract its content.

Nested Class Summary

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

Map.Entry<K,V>

Field Summary

protected Collection<O>	coll
protected boolean	grabbed
protected Map<KG,Collection<VG>>	grabbed_map
protected GrabberIF<O,KG>	key_grabber
protected GrabberIF<O,VG>	value_grabber

Constructor Summary

GrabberMap(Collection<O> coll, GrabberIF<O,KG> key_grabber, GrabberIF<O,VG> value_grabber)

Method Summary

void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set	entrySet()
boolean	equals(Object o)
Collection<VG>	get(Object key)
protected Map<KG,Collection<VG>>	getMap()
Map<KG,Collection<VG>>	getNestedMap()
int	hashCode()
boolean	isEmpty()
Set	keySet()
Collection<VG>	put(KG key, Collection<VG> value)
void	putAll(Map t)
void	refresh() Refreshes the map by looping over the nested collection and regrabbing keys and values.
Collection<VG>	remove(Object key)
void	setNestedMap(Map<KG,Collection<VG>> map)
int	size()
Collection	values()

Methods inherited from class java.lang.Object

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

Field Detail

coll

protected Collection<O> coll

key_grabber

protected GrabberIF<O,KG> key_grabber

value_grabber

protected GrabberIF<O,VG> value_grabber

grabbed_map

protected Map<KG,Collection<VG>> grabbed_map

grabbed

protected boolean grabbed

Constructor Detail

GrabberMap

public GrabberMap(Collection<O> coll,
                  GrabberIF<O,KG> key_grabber,
                  GrabberIF<O,VG> value_grabber)

Method Detail

getNestedMap

public Map<KG,Collection<VG>> getNestedMap()

setNestedMap

public void setNestedMap(Map<KG,Collection<VG>> map)

refresh

public void refresh()

Refreshes the map by looping over the nested collection and regrabbing keys and values. Any changes done to the previous collection will be lost.

Specified by:

refresh in interface CachedIF

getMap

protected Map<KG,Collection<VG>> getMap()

clear

public void clear()

Specified by:

clear in interface Map<KG,Collection<VG>>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<KG,Collection<VG>>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<KG,Collection<VG>>

entrySet

public Set entrySet()

Specified by:

entrySet in interface Map<KG,Collection<VG>>

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<KG,Collection<VG>>

Overrides:

equals in class Object

get

public Collection<VG> get(Object key)

Specified by:

get in interface Map<KG,Collection<VG>>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<KG,Collection<VG>>

Overrides:

hashCode in class Object

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<KG,Collection<VG>>

keySet

public Set keySet()

Specified by:

keySet in interface Map<KG,Collection<VG>>

put

public Collection<VG> put(KG key,
                          Collection<VG> value)

Specified by:

put in interface Map<KG,Collection<VG>>

putAll

public void putAll(Map t)

Specified by:

putAll in interface Map<KG,Collection<VG>>

remove

public Collection<VG> remove(Object key)

Specified by:

remove in interface Map<KG,Collection<VG>>

size

public int size()

Specified by:

size in interface Map<KG,Collection<VG>>

values

public Collection values()

Specified by:

values in interface Map<KG,Collection<VG>>