Apache Commons Collections 4.4 · org.apache.commons.collections4.map

Class Summary

Modifier and Type	Class and Description
public class	AbstractHashedMap< the type of the keys in this map K, the type of the values in this map V> An abstract implementation of a hash-based map which provides numerous points for subclasses to override.
pack-priv abstract class	AbstractInputCheckedMapDecorator<K, V> An abstract base class that simplifies the task of creating map decorators.
public abstract class	AbstractIterableMap< the type of the keys in this map K, the type of the values in this map V> Provide a basic `IterableMap` implementation.
public abstract class	AbstractLinkedMap< the type of the keys in this map K, the type of the values in this map V> An abstract implementation of a hash-based map that links entries to create an ordered map and which provides numerous points for subclasses to override.
public abstract class	AbstractMapDecorator< the type of the keys in the map K, the type of the values in the map V> Provides a base decorator that enables additional functionality to be added to a Map via decoration.
public abstract class	AbstractOrderedMapDecorator< the type of the keys in this map K, the type of the values in this map V> Provides a base decorator that enables additional functionality to be added to an OrderedMap via decoration.
public abstract class	AbstractReferenceMap< the type of the keys in this map K, the type of the values in this map V> An abstract implementation of a hash-based map that allows the entries to be removed by the garbage collector.
public abstract class	AbstractSortedMapDecorator< the type of the keys in the map K, the type of the values in the map V> Provides a base decorator that enables additional functionality to be added to a Map via decoration.
public class	CaseInsensitiveMap< the type of the keys in this map K, the type of the values in this map V> A case-insensitive `Map`.
public class	CompositeMap< the type of the keys in this map K, the type of the values in this map V> Decorates a map of other maps to provide a single unified view.
public class	DefaultedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `Map` returning a default value if the map does not contain the requested key.
public class	EntrySetToMapIteratorAdapter< the type of the keys in the map K, the type of the values in the map V> Adapts a Map entrySet to the MapIterator interface.
public class	FixedSizeMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `Map` to fix the size, preventing add/remove.
public class	FixedSizeSortedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `SortedMap` to fix the size blocking add/remove.
public class	Flat3Map< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation that stores data in simple fields until the size is greater than 3.
public class	HashedMap< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation that is a general purpose alternative to `HashMap`.
public class	LazyMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `Map` to create objects in the map on demand.
public class	LazySortedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `SortedMap` to create objects in the map on demand.
public class	LinkedMap< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation that maintains the order of the entries.
public class	ListOrderedMap< the type of the keys in this map K, the type of the values in this map V> Decorates a `Map` to ensure that the order of addition is retained using a `List` to maintain order.
public class	LRUMap< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation with a fixed maximum size which removes the least recently used entry if an entry is added when full.
public class	MultiKeyMap< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation that uses multiple keys to map the value.
public class	MultiValueMap< the type of the keys in this map K, the type of the values in this map V> Deprecated since 4.1, use `MultiValuedMap` instead A MultiValueMap decorates another map, allowing it to have more than one value for a key.
public class	PassiveExpiringMap< the type of the keys in this map K, the type of the values in this map V> Decorates a `Map` to evict expired entries once their expiration time has been reached.
public class	PredicatedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `Map` to validate that additions match a specified predicate.
public class	PredicatedSortedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `SortedMap` to validate that additions match a specified predicate.
public class	ReferenceIdentityMap< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation that allows mappings to be removed by the garbage collector and matches keys and values based on `==` not `equals()`.
public class	ReferenceMap< the type of the keys in the map K, the type of the values in the map V> A `Map` implementation that allows mappings to be removed by the garbage collector.
public class	SingletonMap< the type of the keys in this map K, the type of the values in this map V> A `Map` implementation that holds a single item and is fixed size.
public class	StaticBucketMap< the type of the keys in this map K, the type of the values in this map V> A StaticBucketMap is an efficient, thread-safe implementation of `java.util.Map` that performs well in in a highly thread-contentious environment.
public class	TransformedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `Map` to transform objects that are added.
public class	TransformedSortedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `SortedMap` to transform objects that are added.
public class	UnmodifiableEntrySet< the type of the keys in the map K, the type of the values in the map V> Decorates a map entry `Set` to ensure it can't be altered.
public class	UnmodifiableMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `Map` to ensure it can't be altered.
public class	UnmodifiableOrderedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `OrderedMap` to ensure it can't be altered.
public class	UnmodifiableSortedMap< the type of the keys in this map K, the type of the values in this map V> Decorates another `SortedMap` to ensure it can't be altered.

Package org.apache.commons.collections4.map

Class Summary