Package org.apache.commons.collections4.map

Class AbstractIterableMap<K,V>

java.lang.Object

org.apache.commons.collections4.map.AbstractIterableMap<K,V>

All Implemented Interfaces:

java.util.Map<K,V>, Get<K,V>, IterableGet<K,V>, IterableMap<K,V>, Put<K,V>

Direct Known Subclasses:

AbstractMapDecorator, CompositeMap, StaticBucketMap

public abstract class AbstractIterableMap<K,V>
extends java.lang.Object
implements IterableMap<K,V>

Provide a basic IterableMap implementation.

Since:

4.0

Version:

$Id: AbstractIterableMap.java 1469004 2013-04-17 17:37:03Z tn $

Nested Class Summary

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

java.util.Map.Entry<K extends java.lang.Object,V extends java.lang.Object>

Constructor Summary

Constructors

Constructor	Description
AbstractIterableMap()

Method Summary

Modifier and Type	Method	Description
MapIterator<K,V>	mapIterator()	Obtains a MapIterator over the map.

Methods inherited from interface org.apache.commons.collections4.Get

containsKey, containsValue, entrySet, get, isEmpty, keySet, remove, size, values

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entry, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, of, of, of, of, of, of, of, of, of, of, of, ofEntries, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.collections4.Put

clear, put, putAll

Constructor Detail

AbstractIterableMap

public AbstractIterableMap()

Method Detail

mapIterator

public MapIterator<K,V> mapIterator()

Obtains a MapIterator over the map.

A map iterator is an efficient way of iterating over maps. There is no need to access the entry set or use Map Entry objects.

 IterableMap map = new HashedMap();
 MapIterator it = map.mapIterator();
 while (it.hasNext()) {
   String key = it.next();
   Integer value = it.getValue();
   it.setValue(value + 1);
 }
 

Specified by:

mapIterator in interface IterableGet<K,V>

Returns:

a map iterator