HomeController.groovy

package org.example

import griffon.core.artifact.GriffonController
import griffon.inject.MVCMember
import griffon.metadata.ArtifactProviderFor
import griffon.transform.Threading
import javax.annotation.Nonnull

@ArtifactProviderFor(GriffonController)
class HomeController {
    @MVCMember @Nonnull
    HomeModel model

    @Threading(Threading.Policy.INSIDE_UITHREAD_ASYNC)
    void click() {
        int count = model.clickCount.toInteger()
        model.clickCount = String.valueOf(count + 1)
    }
}