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Changes between Welle 1.0.0-alpha2 and 1.0.0-alpha3

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Changes between Welle 1.0.0-alpha1 and 1.0.0-alpha2

Clojure Serialization Support

If content type passed to clojurewerkz.welle.objects/store is application/clojure, Clojure reader will be used to serialize and deserialize object value. On Clojure 1.4+, this means you can transparently store and fetch objects that include dates, too (thanks to 1.4's extensible reader/instant literal support).

JSON Serialization Bug Fixes

Welle now works around this Java client bug that used to break application/json; charset=UTF-8 serialization.

User Metadata Normalization

clojurewerkz.welle.objects/store now normalizes metadata by stringifying all keys and requiring that all values are strings. This is due to the current (Riak 1.1) Java client limitations.


clojurewerkz.welle.objects/delete-all is a convenient way to delete multiple keys. Since Riak (as of version 1.1) does not provide a way to delete multiple objects in a single request, this function will use clojure.core/pmap to perform multiple concurrent deletion requests. This implementation may or may not be suitable for your use case.

Changes between Welle 0.1.0 and 1.0.0-alpha1

Secondary Indexes Support

Welle now supports 2i, both indexing and querying:

(wo/store "people" k v :indexes {:email #{"" ""})
;; returns a list of keys
(wo/index-query "people" :email "")

Switch to RawClient

Welle now uses RawClient API of the underlying Riak Java driver. This makes the API a lot more Clojuric and much closer to Sumo. This also makes it more flexible, allowing us to perform automatic serialization/deserialization for stored objects for a few most commonly used content types and control conflicts resolution without heavy boilerplate Java interoperability code in end user applications.

Leiningen 2

Welle now uses Leiningen 2.

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