IndexedCollection would be a useful addition to Commons Collections
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Key: COLLECTIONS-275
URL: https://issues.apache.org/jira/browse/COLLECTIONS-275
Project: Commons Collections
Issue Type: New Feature
Components: Collection
Reporter: Stephen Kestle
Fix For: Generics
I propose that an IndexedCollection is added, which has the following properties
* IndexedCollection<K,C> implements Collection<C>, Map<K,C>
* Contains a Transformer<C,K> for determining the keys
* Presents as an unmodifiableMap (all manipulation must be done through the
collection)
* It will need constructors for unique indexes (Map) and non-unique
(Map<K,Collection<V>> / MultiMap).
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