EntityFormWizardInterface.php

<?php

namespace Drupal\ctools\Wizard;


/**
 * Form wizard interface for use with entities.
 */
interface EntityFormWizardInterface extends FormWizardInterface {
    
    /**
     * The fieldset #title for your label & machine name elements.
     *
     * @return string
     */
    public function getWizardLabel();
    
    /**
     * The form element #title for your unique identifier label.
     *
     * @return string
     */
    public function getMachineLabel();
    
    /**
     * The machine name of the entity type.
     *
     * @return string
     */
    public function getEntityType();
    
    /**
     * A method for determining if this entity already exists.
     *
     * @return callable
     *   The callable to pass the id to via typical machine_name form element.
     */
    public function exists();

}