= MenuBarsLoaderService
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Returns the xref:refguide:applib:index/layout/menubars/MenuBars.adoc[MenuBars] instance for the UI.

The default implementation de-serializes the `menubars.layout...` file read from the classpath.

The service is _called_ by the default implementation of xref:refguide:applib:index/services/menu/MenuBarsService.adoc[MenuBarsService] .

== API

[source,java]
.MenuBarsLoaderService.java
----
interface MenuBarsLoaderService {
  boolean supportsReloading()     // <.>
  Optional<T> menuBars(MenuBarsMarshallerService<T> marshaller)     // <.>
}
----

<.> xref:#supportsReloading_[supportsReloading()]
+
--
Whether dynamic reloading of layouts is enabled.
--
<.> xref:#menuBars_MenuBarsMarshallerService[menuBars(MenuBarsMarshallerService)]
+
--
Optionally returns a new instance of a xref:refguide:applib:index/layout/menubars/MenuBars.adoc[MenuBars] , based on whether the underlying resource could be found, loaded and parsed.
--

== Members

[#supportsReloading_]
=== supportsReloading()

Whether dynamic reloading of layouts is enabled.

If not, then the calling xref:refguide:applib:index/services/menu/MenuBarsService.adoc[MenuBarsService] will cache the layout once loaded.

[#menuBars_MenuBarsMarshallerService]
=== menuBars(MenuBarsMarshallerService)

Optionally returns a new instance of a xref:refguide:applib:index/layout/menubars/MenuBars.adoc[MenuBars] , based on whether the underlying resource could be found, loaded and parsed.

include::hooks/MenuBarsLoaderService_010-implementation.adoc[]

include::hooks/MenuBarsLoaderService_020-examples-and-usage.adoc[]
