corda / net.corda.client.jfx.utils / javafx.collections.ObservableList / firstOrNullObservable

firstOrNullObservable

fun <A> ObservableList<A>.firstOrNullObservable(predicate: (A) -> Boolean): ObservableValue<A?>

Return first element of the observable list as observable value. Return ObservableValue(null) if the list is empty.