Class AbstractSetValuedMap<K,V>

java.lang.Object
org.apache.commons.collections4.multimap.AbstractMultiValuedMap<K,V>
org.apache.commons.collections4.multimap.AbstractSetValuedMap<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:
MultiValuedMap<K,V>, SetValuedMap<K,V>
Direct Known Subclasses:
HashSetValuedHashMap

public abstract class AbstractSetValuedMap<K,V> extends AbstractMultiValuedMap<K,V> implements SetValuedMap<K,V>
Abstract implementation of the SetValuedMap interface to simplify the creation of subclass implementations.

Subclasses specify a Map implementation to use as the internal storage and the Set implementation to use as values.

Since:
4.1
  • Constructor Details

    • AbstractSetValuedMap

      protected AbstractSetValuedMap()
      Constructor needed for subclass serialisation.
    • AbstractSetValuedMap

      protected AbstractSetValuedMap(Map<K,? extends Set<V>> map)
      A constructor that wraps, not copies
      Parameters:
      map - the map to wrap, must not be null
      Throws:
      NullPointerException - if the map is null
  • Method Details