Package org.apache.commons.collections.keyvalue

This package contains implementations of collection and map related key/value classes.

Class Summary
AbstractKeyValue	Abstract pair class to assist with creating KeyValue and MapEntry implementations.
AbstractMapEntry	Abstract Pair class to assist with creating correct Map Entry implementations.
AbstractMapEntryDecorator	Provides a base decorator that allows additional functionality to be added to a Map Entry.
DefaultKeyValue	A mutable KeyValue pair that does not implement MapEntry.
DefaultMapEntry	A restricted implementation of {@link java.util.Map.Entry} that prevents the MapEntry contract from being broken.
MultiKey	A `MultiKey` allows multiple map keys to be merged together.
TiedMapEntry	A Map Entry tied to a map underneath.
UnmodifiableMapEntry	A {@link java.util.Map.Entry} that throws UnsupportedOperationException when `setValue` is called.

Package org.apache.commons.collections.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