Change Log¶ ↑

v0.14.0 - 2020-09-12¶ ↑

Added¶ ↑

• Add ability to declare alias target inside definition

• Add respond_to_missing? to DSL to check if a given method is supported

• Add current state attribute to StateMachine#inspect

v0.13.0 - 2020-05-13¶ ↑

Added¶ ↑

• Add sync as a dependency

• Add metadata to gemspec

Changed¶ ↑

• Change StateMachine#final_state to terminal_states by Brad Gessler(@bradgessler)

• Change to remove artefacts like tests & tasks from gemspec

Fixed¶ ↑

• Fix Ruby 2.7 keyword arguments warnings

• Fix MessageQueue deadlock by Pavel Rosický(@ahorek)

v0.12.1 - 2019-07-12¶ ↑

Changed¶ ↑

• Change to relax dev dependencies versions

Fixed¶ ↑

• Fix FiniteMachine.new to stop coercing object target that responds to to_hash into options

v0.12.0 - 2018-11-11¶ ↑

Added¶ ↑

• Add concurrent-ruby as dependency

• Add FiniteMachine#new for declaring state machines

• Add Observer#cancel_event for cancelling event transitions in callbacks, instead of using callback return value

• Add Const for declaring unique machine constants

• Add :auto_methods configuration option for disabling automatic conversion of event names into methods

Changed¶ ↑

• Change gemspec to require Ruby >= 2.0

• Change FiniteMachine#define to create machine class instances

• Change EventsChain to EventsMap and use Concurrent::Map for holding event transitions

• Change Hooks to use Concurrent::Map for storing callbacks

• Change MessageQueue to use mutex to synchronize access

• Change StateParser to remove internal state and use class methods instead

• Change Observer to create callbacks queue on demand

• Change :any key to be a unique constant ANY_EVENT and ANY_STATE

• Change event_names to events for retrieving all events

• Remove thread synchronization from AsyncCall, TransitinEvent, HookEvent, DSL, Hooks, TransitionBuilder, ChoiceMerger objects

• Remove async call from StateMachine

• Remove target, alias_target, callbacks, events and handlers calls from DSL

Fixed¶ ↑

• Fix StateParser to raise error without nil

• Fix to rollback to current state when an error occurs

v0.11.3 - 2016-03-04¶ ↑

Added¶ ↑

• Add performance tests & memory usage benchmarks

Changed¶ ↑

• Change EventQueue to MessageQueue for handling generic asynchronous messages

• Split async behaviour to use CallbackQueue for observed callbacks and EventQueue for async event triggers.

• Change AsyncProxy and Observer to lazy load message queue

Fixed¶ ↑

• Fix memory leak - issue #42 with help from @craiglittle

v0.11.2 - 2015-12-30¶ ↑

Added¶ ↑

• Add infering of state or event name based off hook type

Changed¶ ↑

• Remove ThreadContext for global queue synchronization

• Change EventQueue to use Threadable module to sync access

Fixed¶ ↑

• Fix bug with two state machines locking up on callback events due to race condition with help from @domokos

v0.11.1 - 2015-12-17¶ ↑

Fixed¶ ↑

• Fix cancelling callbacks for halted transition by craiglittle

v0.11.0 - 2015-10-11¶ ↑

Added¶ ↑

• Add UndefinedTransition to mark self transition(e.i. no transition found)

• Add StateDefinition for state query methods

• Add trigger and trigger! to StateMachine to allow manual firing of events and split between dangerous and non-dangerous versions of api.

Changed¶ ↑

• Change ThreadContext to require per thread setup

• Change Transition to stop relying on global transitions

• Change EventChain to manage all internal transitions

• Change Subscribers to remove unnecessary parameter dependency

• Change StateMachine public interface to clarify available methods

• Change HookEvent to accept event name and from state

• Remove Event class as duplicate of Transition

• Remove unnecessary checks for StateMachine#can?

Fixed¶ ↑

• Fix bug in Transition with current transition matching

• Fix bug in Observer with cancelling inside event callback

v0.10.2 - 2015-07-05¶ ↑

Changed¶ ↑

• Change StateParser parse method

• Change EventBuilder to EventDefinition and invert dependencies

• Change Event#call to trigger

• Change Transition#call to execute

Fixed¶ ↑

• Fix to run 'on_after' callbacks even when event cancalled by @craiglittle

• Fix to cancel transition when no matching choice is found by @craiglittle

v0.10.1 - 2015-05-24¶ ↑

Added¶ ↑

• Add ability to inherit state machine definitions

• Add Env class for holiding machine envionment references

Changed¶ ↑

• Change DSL to delegate calls to machine instance

• Change ChoiceMerger to use machine directly

v0.10.0 - 2014-11-16¶ ↑

Added¶ ↑

• Add alias_target to allow renaming of target object by @reggieb

• Add :log_transitions option for easy transition debugging

Changed¶ ↑

• Change TransitionEvent, AsyncCall to be immutable

• Increase test coverage to 99%

Fixed¶ ↑

• Fix issue with async calls passing wrong arguments to conditionals

v0.9.2 - 2014-09-27¶ ↑

Changed¶ ↑

• Removes use of class variable to share Sync by @reggieb

Fixed¶ ↑

• Fix observer to differentiate between any state and any event

• [#23] Fix transition to correctly set :from and :to parameters for :any state

• [#25] Fix passing parameters to choice events with same named events

• Fix choice pseudostate to work with :any state

v0.9.1 - 2014-08-10¶ ↑

Added¶ ↑

• Add TransitionBuilder to internally build transitions from states

• Add current? to Transition to determine if matches from state

• Add select_choice_transition to EventsChain to determine matching choice transition

Fixed¶ ↑

• Fix choice to allow for multiple from states

• Fix choice to work with same named events

v0.9.0 2014-08-03¶ ↑

Added¶ ↑

• Add Definition class to allow to define standalone state machine

• Add build method to HookEvent

Changed¶ ↑

• Change initial helper to simply state name with options

• Change HookEvent to be immutable and extend comparison

• Change Event to be immutable and extend comparison

• Change finished? to terminated? and allow for multiple terminal states

• Change to require explicit context to call target methods

• Upgrade RSpec dependency and refactor specs

v0.8.1 - 2014-07-05¶ ↑

Added¶ ↑

• Add EventsChain to handle internal events logic

• Add EventBuilder to handle events construction

v0.8.0 - 2014-06-22¶ ↑

Added¶ ↑

• Add silent option for state machine events to allow turning on/off selectively callbacks

• Ensure that can? & cannot? take into account conditionl logic applied to transitions

• Add restore! method to allow to set the state directly without callbacks

• Add ability to do dynamic conditional branching using the choice DSL or grouped events with different outgoing transitions [solves #13 and #6 issue]

v0.7.1 - 2014-06-08¶ ↑

Changed¶ ↑

• Change to relax callback name checks to allow for duplicate state and event names

• Change so that transition to initial state triggers callbacks

v0.7.0 - 2014-05-26¶ ↑

Added¶ ↑

• Add Event to hold the logic for event specification

• Add string inspection to hooks

• Add check for callback name conflicts

Changed¶ ↑

• Change Event to EventHook for callback events

• Change to allow for self-transition - fixes issue #9

• Change to detect attempt to overwrite already defined method - fixes issue #10

• Change to separate state and event callbacks. Introduced on_enter, on_before, once_on_enter, once_on_before new event callbacks.

• Change generic callbacks to default to any state for on_enter, on_transition, on_exit and any event for on_before and on_after

• Change to ensure proper callback lifecycle

Fixed¶ ↑

• Fix issue #8 to preserve conditionals between event specifications

• Fix respond_to on state machine to include observer

• Fix observer missing methods resolution

v0.6.1 - 2014-05-10¶ ↑

Fixed¶ ↑

• Fix stdlib requirement

v0.6.0 - 2014-05-10¶ ↑

Added¶ ↑

• Add StateParser to allow for grouping transition under same event name

• Add abilility to correctly extract :to state for Transition instance

Changed¶ ↑

• Change Transition to store a map of transition for a given event

Fixed¶ ↑

• Fix bug #6 with incorrect TransitionEvent payload information

v0.5.0 - 2014-04-28¶ ↑

Added¶ ↑

• Add generic Listener interface

• Add ability to fire callbacks asynchronously

• Add initial state storage

Changed¶ ↑

• Change to allow for machine to be constructed as plain object

• Allow for :initial, :terminal and :target to be machine parameters

• Change EventQueue to allow for subscription

• Increase test coverage to 98%

• Change to allow access to target inside machine dsl

v0.4.0 - 2014-04-13¶ ↑

Added¶ ↑

• Add logger

• Add ability to cancel transitions inside callbacks

• Add ability to force transitions

Changed¶ ↑

• Change initial state to stop firing event notification

• Increase test coverage to 97%

Fixed¶ ↑

• Fix initial to accept any state object

• Fix proc conditions to accept aditional arguments

v0.3.0 - 2014-03-30¶ ↑

Added¶ ↑

• Add ability to specify callbacks on machine instance

• Add once_on type of callback

• Add off method for removing callbacks

• Add async method to state_machine for asynchronous events firing

• Add state helpers fsm.green? to allow easily check current state

Changed¶ ↑

• Change attr_threadsafe to accept default values

• Move development dependencies to Gemfile

• Increase test coverage to 95%

Fixed¶ ↑

• Fix bug with event methods dynamic redefinition

• Fix observer respond_to

• Fix Callable to correctly forward arguments

v0.2.0 - 2014-03-01¶ ↑

Added¶ ↑

• Add generic state and event listeners

• Add target to allow integration with external objects, and allow easy method lookup through callback context

• Add ability to specify custom handlers for error conditions

• Add methods synchronization for thread safety

• Add ability to define custom initial event

• Add hooks class for callbacks registration

Changed¶ ↑

• Change to ensure correct transition object state

• Extend threadable accessors

Fixed¶ ↑

• Fix bug - callback event object returns correct from state

[v0.1.0] - 2014-02-09¶ ↑

[v0.0.1] - 2014-01-10¶ ↑

• Initial release