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I was comparing this to the problem we face in databases. Search data on various fields.
- robinvarghese.j August 18, 2014I decided to model my solution similar to what databases do ( Primary and Secondary Indexes)
We build every phone record and add it to a hash table where the phone record is the value and the number is the key (Our primary index)
For every other searchable index (e.g. name) we build a map with the name as key and the phone number as value. (Secondary index).
Every secondary key can lead us to the phone number, base on which we can then track the complete record.
Pros - fast map based lookup, easy to add new keys/ discard keys and even update appropriate maps.
Cons - higher memory requirements as keys increase