A Clojure library that provides some custom data structures that I found to be helpful.
Sure, you can build your own data structures on top of maps, vectors etc., but in many cases that means you also have to provide custom functions like my=, my-assoc, my-dissoc, my-merge etc.
The custom data structures here provide special features but still allow you to make use of Clojure's native functions (as long as this makes sense).
The following Data Types exist:
-
relevancemap: A map that lets you define which of its properties should influence its hash value.
-
transactionmap: A map that keeps track of changes and provides means by which you can commit or roll back these changes.
-
lazyvector: A vector that treats its contents lazily. It will only
derefthese contents when necessary. -
lazymap: A map that treats its contents lazily. It will only
derefits contents when necessary. -
dbmap: A map that combines relevancemap, transactionmap and lazyvector into one single type that is suitable for representing database records. Additionally, it makes a distinction between the entity's own properties vs. references to other entities.
Some features of these custom datatypes may not (yet) be consistent with Clojure's paradigm of how it handles data types.
However, I'll try to minimize the discrepancies, if there are any. I'll be very thankful for any kind of feedback, hints and tips for how to make this library better! If you find there are issues that should be improved, fixed or should not be done at all, just drop me a line - I appreciate that.
Still alpha! Examples will follow.
Distributed under the MIT License (MIT).
Copyright © 2016 Oliver Wegner
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