Class EnsuringMenuTransitionateToView

Decorator around the menu transition use case that ensures the target menu's visual instance exists — building it lazily if needed — before delegating to the inner transition.
This keeps lazy-instantiation responsibility in the orchestration layer and out of the view: Serenity.Menu.Infrastructure.Views only expresses the intent to transition.

Inheritance
object
EnsuringMenuTransitionateToView
Implements
Inherited Members
Namespace: Serenity.Menu.Application.UseCases
Assembly: Serenity.Menu.Application.dll
Syntax
public class EnsuringMenuTransitionateToView : ISyncUseCase<MenuTransitionateToViewInput>, IUseCase

Constructors

EnsuringMenuTransitionateToView(ISyncUseCase<MenuTransitionateToViewInput>, IMenuInstanceGate)

Initializes a new decorator wrapping inner and guarded by gate.

Declaration
public EnsuringMenuTransitionateToView(ISyncUseCase<MenuTransitionateToViewInput> inner, IMenuInstanceGate gate)
Parameters
Type Name Description
ISyncUseCase<MenuTransitionateToViewInput> inner

The inner menu transition use case to delegate to.
IMenuInstanceGate gate

The menu instance gate that ensures the target view exists before showing it.
Exceptions
Type Condition
ArgumentNullException

Thrown when inner or gate is null.

Methods

Execute(MenuTransitionateToViewInput)

Ensures the target view exists, then runs the inner transition only if the instance is available.
If the gate returns false (a non-fatal build failure) the transition is aborted atomically, leaving the current menu visible. Exceptions from the gate (fail-loud contexts) propagate.

Declaration
public void Execute(MenuTransitionateToViewInput input)
Parameters
Type Name Description
MenuTransitionateToViewInput input

The transition input carrying the source and target menu ids.

Implements