MultiView

MultiView is the root base class of the orchestrator hierarchy. It handles the routing contract — deciding which sub-screen to render for a given URL — and wraps each resolved view in the component shell that drives the navigation flow.

public abstract class MultiView
    implements ActionHandler, ActionSupplier, RouteHandler, DtoSupplier

You never extend MultiView directly. Extend Crud, AutoCrud, EditableView, or Wizard instead. MultiView is documented here so you can understand what those classes inherit.

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Implemented interfaces

Interface	What it provides
ActionHandler	Dispatches named actions triggered from the UI
ActionSupplier	Declares which actions the orchestrator exposes
RouteHandler	Receives the URL and decides which sub-component to render
DtoSupplier	Wraps the orchestrator in an AppShell mediator on first load

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How routing works

When a request arrives at an orchestrated route (e.g. /products), Mateu calls handleRoute() on the orchestrator. The orchestrator:

1. On first load — renders itself as a mediator shell that hosts the sub-screens.
2. On subsequent navigation — calls the abstract resolveInternalRoute() to determine which sub-screen to show.
3. Wraps the resolved component in a ServerSideComponentDto with the correct state, triggers, and dirty-state tracking.

The subclass (Crud) provides the concrete resolveInternalRoute() that maps URL patterns to list/view/edit/new screens. EditableView provides its own implementation for the view/edit pattern.

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Abstract method

protected abstract OrchestrationResult resolveInternalRoute(
    String route, HttpRequest httpRequest);

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Overridable methods

Method	Default	Override to…
layout()	AppLayout.SINGLE_SLOT	Use AppLayout.SPLIT for a split-panel layout (also available via @SplitCrud)
triggers(viewName, httpRequest)	List.of()	Return triggers that fire when a specific sub-screen ("list", "view", "edit", "new") loads

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Orchestrator hierarchy

MultiView
├── Crud<View, Editor, CreationForm, Filters, Row, IdType>
│   ├── FilteredAutoCrud<Filters, T>
│   │   └── AutoCrud<T>
│   │       └── (your class)
│   └── (your class)
├── EditableView<V, E>
│   └── AutoEditableView<T>
│       └── (your class)
└── Wizard
    └── (your class)

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Next

• Full control with Crud — the direct subclass used for explicit multi-screen CRUD
• AutoCrud — the simplest entry point built on top of Crud
• EditableView — single-entity view with an Edit button, no list