class AssetSubItem { AssetSubItem parentItem String name String description = "" String comment = "" boolean isActive = true static hasMany = [assets: Asset, subItems: AssetSubItem, maintenanceActions: MaintenanceAction, assetSubItemExtendedAttributes: AssetSubItemExtendedAttribute] static belongsTo = [Asset, AssetSubItem] static constraints = { name(maxSize:50, unique:true, blank:false) description(maxSize:75) comment(maxSize:500) isActive() parentItem(nullable:true) } static mapping = { subItems(batchSize:1000) } String toString() { "${this.name}" } }