org.abstracthorizon.extend.server.support
Class EnhancedMap<KeyType,ValueType>

java.lang.Object
  org.abstracthorizon.extend.server.support.EnhancedMap<KeyType,ValueType>

All Implemented Interfaces:

Map<KeyType,ValueType>

Direct Known Subclasses:

DeploymentManagerImpl.DeployedModules

public class EnhancedMap<KeyType,ValueType>
extends Object
implements Map<KeyType,ValueType>

This map maintains separate set of values. This allows if two key/value pairs contain same value and remove(Object) method is called with value both values are going to be removed from the map. Also, having set of values values() method returns that set which is faster. Values set is implemented as LinkedHashSet

Nested Class Summary

protected class

EnhancedMap.InternalSet<Type> Internal implementation of LinkedHashSet so invoking HashSet.remove(Object) method removes all values from the map as well

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

Map.Entry<K,V>

Field Summary

protected LinkedHashMap<KeyType,ValueType>	map Map
protected EnhancedMap.InternalSet<ValueType>	values Values

Constructor Summary

EnhancedMap()
Empty constractor

Method Summary

void	clear() Clears the map.
boolean	containsKey(Object key) Checks map if key exsits
boolean	containsValue(Object value) Checks values set if value exsits
Set<Map.Entry<KeyType,ValueType>>	entrySet() Returns entry set of a map
ValueType	get(Object key) Returns get value
boolean	isEmpty() Returns if is empty
Set<KeyType>	keySet() Returns key set
static void	main(String[] args)
ValueType	put(KeyType key, ValueType value) Adds new element to the map
void	putAll(Map<? extends KeyType,? extends ValueType> t) Stores all
ValueType	remove(Object value) Removes value value
int	size() Returns map size
Collection<ValueType>	values() Returns values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

map

protected LinkedHashMap<KeyType,ValueType> map

Map

values

protected EnhancedMap.InternalSet<ValueType> values

Values

Constructor Detail

EnhancedMap

public EnhancedMap()

Empty constractor

Method Detail

get

public ValueType get(Object key)

Returns get value

Specified by:

get in interface Map<KeyType,ValueType>

Parameters:

key - key

Returns:

value

put

public ValueType put(KeyType key,
                     ValueType value)

Adds new element to the map

Specified by:

put in interface Map<KeyType,ValueType>

Parameters:

key - key

value - value

Returns:

previous value under that key

remove

public ValueType remove(Object value)

Removes value value

Specified by:

remove in interface Map<KeyType,ValueType>

Parameters:

value - value to be removed

Returns:

true if removed

clear

public void clear()

Clears the map.

Specified by:

clear in interface Map<KeyType,ValueType>

values

public Collection<ValueType> values()

Returns values

Specified by:

values in interface Map<KeyType,ValueType>

Returns:

values

containsKey

public boolean containsKey(Object key)

Checks map if key exsits

Specified by:

containsKey in interface Map<KeyType,ValueType>

Parameters:

key - key

Returns:

true if key exists

containsValue

public boolean containsValue(Object value)

Checks values set if value exsits

Specified by:

containsValue in interface Map<KeyType,ValueType>

Parameters:

value - value

Returns:

true if value exists

entrySet

public Set<Map.Entry<KeyType,ValueType>> entrySet()

Returns entry set of a map

Specified by:

entrySet in interface Map<KeyType,ValueType>

Returns:

entry set of a map

isEmpty

public boolean isEmpty()

Returns if is empty

Specified by:

isEmpty in interface Map<KeyType,ValueType>

Returns:

true if is empty

keySet

public Set<KeyType> keySet()

Returns key set

Specified by:

keySet in interface Map<KeyType,ValueType>

Returns:

key set

putAll

public void putAll(Map<? extends KeyType,? extends ValueType> t)

Stores all

Specified by:

putAll in interface Map<KeyType,ValueType>

Parameters:

t - map

size

public int size()

Returns map size

Specified by:

size in interface Map<KeyType,ValueType>

Returns:

map size

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception