micro_utils.dokka/dev.inmo.micro_utils.fsm.common.managers/[common]DefaultStatesManager

DefaultStatesManager

class DefaultStatesManager<T : State>(repo: DefaultStatesManagerRepo<T>, onContextsConflictResolver: suspend (T, T, T) -> Boolean) : StatesManager<T>

Parameters

repo

This repo will be used as repository for storing states. All operations with this repo will happen BEFORE any event will be sent to onChainStateUpdated, onStartChain or onEndChain. By default will be used InMemoryDefaultStatesManagerRepo or you may create custom DefaultStatesManagerRepo and pass as repo parameter

onContextsConflictResolver

Receive old State, new one and the state currently placed on new State.context key. In case when this callback will returns true, the state placed on State.context of new will be replaced by new state by using endChain with that state

Constructors

DefaultStatesManager

fun <T : State> DefaultStatesManager(repo: DefaultStatesManagerRepo<T> = InMemoryDefaultStatesManagerRepo(), onContextsConflictResolver: suspend (T, T, T) -> Boolean = { _, _, _ -> true })

Functions

endChain

open suspend override fun endChain(state: T)

Ends chain with context from state. In case when State.context of state is absent, state should be just ignored

getActiveStates

open suspend override fun getActiveStates(): List<T>

startChain

open suspend override fun startChain(state: T)

Starts chain with state as first State. May returns false in case of State.context of state is already busy by the other State

update

open suspend override fun update(old: T, new: T)

Must set current set using State.context

Properties

onChainStateUpdated

open override val onChainStateUpdated: Flow<Pair<T, T>>

onEndChain

open override val onEndChain: Flow<T>

onStartChain

open override val onStartChain: Flow<T>