org.apache.commons.collections4.keyvalue

Class Summary

Class

Description

AbstractKeyValue<K ,V>

Abstract pair class to assist with creating KeyValue and Map.Entry implementations.

AbstractMapEntry<K ,V>

Abstract Pair class to assist with creating correct Map.Entry implementations.

AbstractMapEntryDecorator<K ,V>

Provides a base decorator that allows additional functionality to be added to a Map.Entry.

DefaultKeyValue<K ,V>

A mutable KeyValue pair that does not implement Map.Entry.

DefaultMapEntry<K ,V>

A restricted implementation of Map.Entry that prevents the Map.Entry contract from being broken.

MultiKey<K>

A MultiKey allows multiple map keys to be merged together.

TiedMapEntry<K ,V>

A Map.Entry tied to a map underneath.

UnmodifiableMapEntry<K ,V>

A Map.Entry that throws UnsupportedOperationException when setValue is called.

Package org.apache.commons.collections4.keyvalue Description

This package contains implementations of collection and map related key/value classes. These are usually used in maps, however they can be used as data holders in any collection.

The following key/value designs are included:

Map Entry - various map entry implementations
KeyValue - a key and value pair, without map entry semantics
MultiKey - a holder of multiple keys tied together

Package org.apache.commons.collections4.keyvalue

Class Summary

Package org.apache.commons.collections4.keyvalue Description