corda / net.corda.client.fxutils / MapValuesList

# MapValuesList

`class MapValuesList<K, A, C> : ObservableList<C>`

MapValuesList takes an ObservableMap and returns its values as an ObservableList. The order of returned elements is deterministic but unspecified.

### Properties

sourceMap | `val sourceMap: ObservableMap<K, A>`

### Companion Object Functions

create | `fun <K, A, C> create(sourceMap: ObservableMap<K, A>, assemble: (Entry<K, A>) -> C): MapValuesList<K, A, C>` create is the factory of MapValuesList.

### Extension Functions

associateBy | `fun <K, A, B> ObservableList<out A>.associateBy(toKey: (A) -> K, assemble: (K, A) -> B): ObservableMap<K, B>` data class Person(val height: Long) val people: ObservableList = (..) val nameToHeight: ObservableMap<String, Long> = people.associateBy(Person::name) { name, person -> person.height } `fun <K, A> ObservableList<out A>.associateBy(toKey: (A) -> K): ObservableMap<K, A>` val people: ObservableList = (..) val nameToPerson: ObservableMap<String, Person> = people.associateBy(Person::name)
associateByAggregation | `fun <K : Any, A : Any, B> ObservableList<out A>.associateByAggregation(toKey: (A) -> K, assemble: (K, A) -> B): ObservableMap<K, ObservableList<B>>` val people: ObservableList = (..) val heightToNames: ObservableMap<Long, ObservableList> = people.associateByAggregation(Person::height) { name, person -> person.name } `fun <K : Any, A : Any> ObservableList<out A>.associateByAggregation(toKey: (A) -> K): ObservableMap<K, ObservableList<A>>` val people: ObservableList = (..) val heightToPeople: ObservableMap<Long, ObservableList> = people.associateByAggregation(Person::height)
filter | `fun <A> ObservableList<out A>.filter(predicate: ObservableValue<(A) -> Boolean>): ObservableList<A>` enum class FilterCriterion { HEIGHT, NAME } val filterCriterion: ObservableValue = (..) val people: ObservableList = (..) fun filterFunction(filterCriterion: FilterCriterion): (Person) -> Boolean { .. }
filterNotNull | `fun <A> ObservableList<out A?>.filterNotNull(): ObservableList<A>` data class Dog(val owner: Person?) val dogs: ObservableList = (..) val owners: ObservableList = dogs.map(Dog::owner).filterNotNull()
first | `fun <A> ObservableList<A>.first(): ObservableValue<A?>`
firstOrDefault | `fun <A> ObservableList<A>.firstOrDefault(default: ObservableValue<A?>, predicate: (A) -> Boolean): ObservableValue<A?>` Return first element of the observable list as observable value. Return provided default value if the list is empty.
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.
foldObservable | `fun <A, B> ObservableList<out A>.foldObservable(initial: B, folderFunction: (B, A) -> B): ObservableValue<B>` val people: ObservableList = (..) val concatenatedNames = people.foldObservable("", { names, person -> names + person.name }) val concatenatedNames2 = people.map(Person::name).fold("", String::plus)
getValueAt | `fun <A> ObservableList<A>.getValueAt(index: Int): ObservableValue<A?>`
indexOfOrThrow | `fun <T> List<T>.indexOfOrThrow(item: T): Int` Returns the index of the given item or throws IllegalArgumentException if not found.
last | `fun <A> ObservableList<A>.last(): ObservableValue<A?>`
leftOuterJoin | `fun <A : Any, B : Any, C, K : Any> ObservableList<A>.leftOuterJoin(rightTable: ObservableList<B>, leftToJoinKey: (A) -> K, rightToJoinKey: (B) -> K, assemble: (A, ObservableList<B>) -> C): ObservableList<C>` data class Person(val name: String, val managerName: String) val people: ObservableList = (..) val managerEmployeeMapping: ObservableList<Pair<Person, ObservableList>> = people.leftOuterJoin(people, Person::name, Person::managerName) { manager, employees -> Pair(manager, employees) } `fun <A : Any, B : Any, K : Any> ObservableList<A>.leftOuterJoin(rightTable: ObservableList<B>, leftToJoinKey: (A) -> K, rightToJoinKey: (B) -> K): ObservableMap<K, Pair<ObservableList<A>, ObservableList<B>>>` data class Person(name: String, favouriteSpecies: Species) data class Animal(name: String, species: Species) val people: ObservableList = (..) val animals: ObservableList = (..) val peopleToFavouriteAnimals: ObservableMap<Species, Pair<ObservableList, ObservableList>> = people.leftOuterJoin(animals, Person::favouriteSpecies, Animal::species)
map | `fun <A, B> ObservableList<out A>.map(cached: Boolean = true, function: (A) -> B): ObservableList<B>` val dogs: ObservableList = (..) val dogOwners: ObservableList = dogs.map { it.owner }
noneOrSingle | `fun <T> Iterable<T>.noneOrSingle(predicate: (T) -> Boolean): T?` Returns the single element matching the given predicate, or `null` if element was not found, or throws if more than one element was found. `fun <T> Iterable<T>.noneOrSingle(): T?` Returns single element, or `null` if element was not found, or throws if more than one element was found.
randomOrNull | `fun <T> List<T>.randomOrNull(): T?` Returns a random element in the list, or null if empty `fun <T> List<T>.randomOrNull(predicate: (T) -> Boolean): T?` Returns a random element in the list matching the given predicate, or null if none found
unique | `fun <T : Any> ObservableList<T>.unique(): ObservableList<T>`