com.r3corda.client.fxutils / ChosenList

ChosenList

class ChosenList<E> : ObservableListBase<E>

ChosenList manages an ObservableList that may be changed by the wrapping ObservableValue. Whenever the underlying ObservableValue changes the exposed list changes to the new value. Changes to the list are simply propagated.

Example: val filteredStates = ChosenList(EasyBind.map(filterCriteriaType) { type -> when (type) { is (ByCurrency) -> statesFilteredByCurrency is (ByIssuer) -> statesFilteredByIssuer } })

The above will create a list that chooses and delegates to the appropriate filtered list based on the type of filter.





Constructors

<init> ChosenList(chosenListObservable: ObservableValue<out ObservableList<out E>>)

ChosenList manages an ObservableList that may be changed by the wrapping ObservableValue. Whenever the underlying ObservableValue changes the exposed list changes to the new value. Changes to the list are simply propagated.

Properties

size val size: Int

Functions

get fun get(index: Int): E

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?>
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.

isOrderedAndUnique fun <T, I : Comparable<I>> Iterable<T>.isOrderedAndUnique(extractId: T.() -> I): Boolean

Determine if an iterable data types contents are ordered and unique, based on their Comparable.compareTo function.

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, <ERROR CLASS><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.