net.sf.molae.pipe.adapt
Class ListAsMap<V>

java.lang.Object
  java.util.AbstractMap<K,V>
      net.sf.molae.pipe.basic.AbstractMapWithSet<Integer,V>
          net.sf.molae.pipe.adapt.ListAsMap<V>

All Implemented Interfaces:

Map<Integer,V>

public class ListAsMap<V>
extends AbstractMapWithSet<Integer,V>

Map view on a list. The list is seen as a map where the index is the key of each entry.

Since:

2.1

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.molae.pipe.basic.AbstractMapWithSet

AbstractMapWithSet.EntrySet

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

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

Map.Entry<K,V>

Method Summary

void	clear()
boolean	containsKey(Object key)
V	get(Object key)
protected Iterator<Map.Entry<Integer,V>>	getEntrySetIterator() Returns the iterator of the entry set.
static <V> TwoWayTransformer<List<V>,Map<Integer,V>>	listToMaptransformer() Provides a tranformer that transforms a list into its map view.
static <V> Map<Integer,V>	newInstance(List<V> values, boolean withNulls) Creates a new ListAsMap
V	put(Integer key, V value)
V	remove(Object key)
int	size() Returns the number of mappings in this map.

Methods inherited from class net.sf.molae.pipe.basic.AbstractMapWithSet

entrySet, keySet

Methods inherited from class java.util.AbstractMap

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

Methods inherited from class java.lang.Object

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

Method Detail

newInstance

public static <V> Map<Integer,V> newInstance(List<V> values,
                                             boolean withNulls)

Creates a new ListAsMap

Parameters:

values - underlying list

withNulls - if true all items of the list are incorporated in the map, if false only the non-null values.

Returns:

map view of the specified list

size

public int size()

Description copied from class: AbstractMapWithSet

Returns the number of mappings in this map. This implementation uses the iterator to count the elements.

Specified by:

size in interface Map<Integer,V>

Overrides:

size in class AbstractMapWithSet<Integer,V>

Returns:

the number of mappings in this map.

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<Integer,V>

Overrides:

containsKey in class AbstractMap<Integer,V>

get

public V get(Object key)

Specified by:

get in interface Map<Integer,V>

Overrides:

get in class AbstractMap<Integer,V>

put

public V put(Integer key,
             V value)

Specified by:

put in interface Map<Integer,V>

Overrides:

put in class AbstractMap<Integer,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<Integer,V>

Overrides:

remove in class AbstractMap<Integer,V>

clear

public void clear()

Specified by:

clear in interface Map<Integer,V>

Overrides:

clear in class AbstractMap<Integer,V>

getEntrySetIterator

protected Iterator<Map.Entry<Integer,V>> getEntrySetIterator()

Description copied from class: AbstractMapWithSet

Returns the iterator of the entry set.

Specified by:

getEntrySetIterator in class AbstractMapWithSet<Integer,V>

Returns:

the iterator of the entry set.

listToMaptransformer

public static final <V> TwoWayTransformer<List<V>,Map<Integer,V>> listToMaptransformer()

Provides a tranformer that transforms a list into its map view. Null-values in the base list are not incorporated in the map.

Returns:

the transformer