Class AbstractListValuedMap<K,V> 
java.lang.Object
org.apache.commons.collections4.multimap.AbstractMultiValuedMap<K,V>
 
org.apache.commons.collections4.multimap.AbstractListValuedMap<K,V> 
- Type Parameters:
- K- the type of the keys in this map
- V- the type of the values in this map
- All Implemented Interfaces:
- ListValuedMap<K,,- V> - MultiValuedMap<K,- V> 
- Direct Known Subclasses:
- ArrayListValuedHashMap,- ArrayListValuedLinkedHashMap
public abstract class AbstractListValuedMap<K,V> 
extends AbstractMultiValuedMap<K,V>
implements ListValuedMap<K,V>  
Abstract implementation of the 
ListValuedMap interface to simplify
 the creation of subclass implementations.
 Subclasses specify a Map implementation to use as the internal storage and the List implementation to use as values.
- Since:
- 4.1
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Constructor SummaryConstructorsModifierConstructorDescriptionprotectedConstructor needed for subclass serialization.protectedAbstractListValuedMap(Map<K, ? extends List<V>> map) A constructor that wraps, not copies
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Method SummaryModifier and TypeMethodDescriptionCreates a new value collection using the provided factory.Gets the list of values associated with the specified key.getMap()Gets the map being wrapped.Removes all values associated with the specified key.Methods inherited from class org.apache.commons.collections4.multimap.AbstractMultiValuedMapasMap, clear, containsKey, containsMapping, containsValue, doReadObject, doWriteObject, entries, equals, hashCode, isEmpty, keys, keySet, mapIterator, put, putAll, putAll, putAll, removeMapping, setMap, size, toString, valuesMethods inherited from class java.lang.Objectclone, finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface org.apache.commons.collections4.MultiValuedMapasMap, clear, containsKey, containsMapping, containsValue, entries, isEmpty, keys, keySet, mapIterator, put, putAll, putAll, putAll, removeMapping, size, values
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Constructor Details- 
AbstractListValuedMapprotected AbstractListValuedMap()Constructor needed for subclass serialization.
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AbstractListValuedMapA constructor that wraps, not copies- Parameters:
- map- the map to wrap, must not be null
- Throws:
- NullPointerException- if the map is null
 
 
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Method Details- 
createCollectionCreates a new value collection using the provided factory.- Specified by:
- createCollectionin class- AbstractMultiValuedMap<K,- V> 
- Returns:
- a new list
 
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getGets the list of values associated with the specified key. This would return an empty list in case the mapping is not present- Specified by:
- getin interface- ListValuedMap<K,- V> 
- Specified by:
- getin interface- MultiValuedMap<K,- V> 
- Overrides:
- getin class- AbstractMultiValuedMap<K,- V> 
- Parameters:
- key- the key to retrieve
- Returns:
- the Listof values, will return an emptyListfor no mapping
 
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getMapDescription copied from class:AbstractMultiValuedMapGets the map being wrapped.- Overrides:
- getMapin class- AbstractMultiValuedMap<K,- V> 
- Returns:
- the wrapped map
 
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removeRemoves all values associated with the specified key.A subsequent get(Object)would return an empty list.- Specified by:
- removein interface- ListValuedMap<K,- V> 
- Specified by:
- removein interface- MultiValuedMap<K,- V> 
- Overrides:
- removein class- AbstractMultiValuedMap<K,- V> 
- Parameters:
- key- the key to remove values from
- Returns:
- the Listof values removed, will return an empty, unmodifiable list for no mapping found.
 
 
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