Rill/Wheel - Event generation using aggregates and commands

It may be hard for an egg to turn into a bird: it would be a jolly sight harder for it to learn to fly while remaining an egg.

-- C.S. Lewis

Usage

See the manual

Changelog

v0.1.14

• provide more useful arglists metadata on map->{name} constructors.

v0.1.23

• remove work-in-progress broken files from release

v0.1.22

• events don't include their aggregate type any more
• introduce map->{name} constructors

v0.1.21

• upgrade to clojure-1.9.0-alpha16 with clojure.spec.alpha namespaces

v0.1.20

• ensure repositories print as short names instead of potentially giant map

V0.1.19

• deserialize :rill.message/stream-id in messages when using rill.wheel/wrap-stream-properties.
• remove debug output from rill.wheel.wrap-upcasts
• added tests for integration with rill.event-store.mysql

V0.1.18

• include :rill.message/stream-id and :rill.message/number in ok result.

v0.1.17

• added upcasts wrapper. added presentation to docs

v0.1.16

• serialize props for storing aggregate ids in durable stores

v0.1.15

• small documentation improvements
• use clojure.spec for parsing defevent and defcommand macro arguments
• use provided prepost maps in ->event-name constructors

v0.1.14

• clojure.spec specs for macros and functions
• clojure.spec enabled for tests

v0.1.13

• allow access to backing event-store from repository
• added triggers. See rill.wheel.trigger
• added rill.wheel.wrap-new-events-callback event store wrapper
• small documentation typos fixed
• added ->{event-name} constructor function
• added ->{command-name} constructor function
• deprecated {command-name}-command function

v0.1.12

• added :rill.wheel/properties metadata to events and commands
• added markdown reporting

v0.1.11

• (breaking) Renamed rill.wheel.aggregate to rill.wheel
• (breaking) defevent now takes aggregate type as a required argument
• defevent checks for collisions of event properties with aggregate identifier
• Added more documentation
• Added reason function to get reason for a rejection

v0.1.10

Modified command setup, allowing commands to be supplied as messages.

• (breaking) merged rill.wheel.command into rill.wheel.aggregate namespace
• (breaking) rill.wheel.command takes aggregate type as additional argument.
• (breaking) first argument to commands now must be an aggregate.
• (breaking) ok result's aggregate now reflects the comitted (updated) aggregate.

v0.1.9

• Improve & expand documentation

v0.1.8

• Allow inlining of event and command definitions in defaggregate
• Make :rill.wheel.command/events metadata optional.
• (breaking) defcommand does not automatically commit results, use rill.wheel.command/commit!

v0.1.7

• Documentation improvements
• (breaking/fix) preconditions on defevent go on the event constructor.
• (breaking) split off aggregate retrieval code generated by defaggregate into new get-$name function.

v0.1.6

• (breaking) aggregate ids now include the aggregate type
• body of defevent is now optional
• (breaking) defevent creates additional {name}-event function

v0.1.5

Some breaking API updates.

• defaggregate builds the aggregate constructor automatically
• aggregate id is a map of identifying properties
• repository protocol does update instead of fetch.

v0.1.4

• Finished rill.wheel.wrap-stream-properties.

v0.1.3

• Fixed rill.wheel.testing/sub? checking seqs with lists.

v0.1.2

• Added rill.wheel.check namespace for checking model consistency.
• Enforcing use of :rill.wheel.command/events key on command definitions.

v0.1.1

Initial release

License

Copyright © 2016 Joost Diepenmaat, Zeekat Software Ontwikkeling

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.