org.omnaest.utils.structure.map
Class AggregatedMap<K,V>

java.lang.Object
  org.omnaest.utils.structure.map.AggregatedMap<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

Map<K,V>

public class AggregatedMap<K,V>
extends Object
implements Map<K,V>

The AggregatedMap allows to combine a List of Maps into a single one. The rule is, that keys are searched within Maps at the beginning of the List towards the end. This means if an earlier Map contains a key, the other Maps are ignored, even if there is a similar key available also.

Author:

Omnaest

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

AggregatedMap(Iterable<? extends Map<K,V>> mapIterable)

AggregatedMap(Map<K,V>... maps)

AggregatedMap(Map<K,V> map)

Method Summary

void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object obj)
V	get(Object key)
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
V	put(K key, V value) Puts the value into all Maps which contains the given key already, or into the first Map otherwise
void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key) Removes the key from all the Maps returning the value of the first occuring key value pair.
int	size()
String	toString()
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregatedMap

public AggregatedMap(Iterable<? extends Map<K,V>> mapIterable)

Parameters:

mapIterable -

See Also:

AggregatedMap

AggregatedMap

public AggregatedMap(Map<K,V>... maps)

Parameters:

maps -

See Also:

AggregatedMap

AggregatedMap

public AggregatedMap(Map<K,V> map)

Parameters:

map -

See Also:

AggregatedMap

Method Detail

size

public int size()

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

put

public V put(K key,
             V value)

Puts the value into all Maps which contains the given key already, or into the first Map otherwise

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Removes the key from all the Maps returning the value of the first occuring key value pair.

Specified by:

remove in interface Map<K,V>

putAll

public void putAll(Map<? extends K,? extends V> m)

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class Object