Affects Version/s: None
Fix Version/s: None
I was working on a project ( https://github.com/nielsbasjes/yauaa ) where I ran into the situation that I needed a type of collection that was not yet present in either Java or commons-collections.
So I wrote my own implementation and I think this may be a useful addition to commons-collections.
At this point we have
- the Map that allows retrieval of a single value based on an exact key.
- the Trie that allows retrieval of a set of values based where the keys all start with the same prefix.
What I needed a structure where it holds the prefixes and associated values and I want to retrieve the 'best matching prefix' for a given input.
To illustrate what I mean using the original use case:
PrefixMap<String> prefixMap = new ASCIIPrefixMap<>(false); // false == match case insensitive
prefixMap.getLongestMatch("SM-1234"); // ---> "Samsung"