io.simplesource.saga.model.messages

Interface SagaStateTransition<A>

Type Parameters:

A - a representation of an action command that is shared across all actions in the saga. This is typically a generic type, such as Json, or if using Avro serialization, SpecificRecord or GenericRecord

All Known Implementing Classes:

SagaStateTransition.SagaActionStateChanged, SagaStateTransition.SagaStatusChanged, SagaStateTransition.SetInitialState, SagaStateTransition.TransitionList

public interface SagaStateTransition<A>

SagaStateTransition interface. Represents transitions of saga state

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	SagaStateTransition.SagaActionStateChanged<A> A transition representing state changes of a Saga caused by updates to state of an action
static class	SagaStateTransition.SagaStatusChanged<A> A transition representing state changes of a Saga caused by updating a sagas status
static class	SagaStateTransition.SetInitialState<A> A transition for setting the initial state of the Saga
static class	SagaStateTransition.TransitionList<A> A transition representing multiple state changes to a saga

Method Summary

Modifier and Type	Method and Description
<B> B	cata(java.util.function.Function<SagaStateTransition.SetInitialState<A>,B> f1, java.util.function.Function<SagaStateTransition.SagaActionStateChanged<A>,B> f2, java.util.function.Function<SagaStateTransition.SagaStatusChanged<A>,B> f3, java.util.function.Function<SagaStateTransition.TransitionList<A>,B> f4) Catamorphism over SagaStateTransition

Method Detail

cata

<B> B cata(java.util.function.Function<SagaStateTransition.SetInitialState<A>,B> f1,
           java.util.function.Function<SagaStateTransition.SagaActionStateChanged<A>,B> f2,
           java.util.function.Function<SagaStateTransition.SagaStatusChanged<A>,B> f3,
           java.util.function.Function<SagaStateTransition.TransitionList<A>,B> f4)

Catamorphism over SagaStateTransition

Type Parameters:

B - the target type of the catamorphism

Parameters:

f1 - transition function based on saga initial state

f2 - transition function based on change in action state

f3 - transition function based on change in saga status

f4 - transition function based on a list of transitions

Returns:

the b