ActOn Framework

Declarative architecture for Java — built on Contracts, Actors, and Stores.

Overview

ActOn is a new foundation for building backend systems with minimal boilerplate.
You define what happens through contracts and how through actors — stores handle persistence.

Core Concepts

Concept	Description
Contract	Defines the operation's intent (input and output).
Actor	Executes business logic for a contract.
Store	Abstracts persistence and eliminates repositories.

Example

@Contract("orders.create")
public record OrderCreate(String customerId, BigDecimal total) {}

@Service
public class OrderActor {
    private final StoreState<Order> orders;
    @Bind(OrderCreate.class)
    public Order on(OrderCreate c) {
        var order = new Order(c.customerId(), "NEW", c.total());
        return orders.save(order);
    }
}