Optional

Kotlin |Java

class Optional<T> : Serializable

Redefinition of Guava's Optional, created to avoid compatibilty breakages for users of EspressoOptional.

Summary

Public functions
`(Mutable)Set<T!>!`	`asSet()`
`Boolean`	`equals(object: Any!)`
`java-static Optional<T!>!`	`<T> fromNullable(value: T?)`
`T!`	`get()`
`Int`	`hashCode()`
`Boolean`	`isPresent()`
`java-static Optional<T!>!`	`<T> of(value: T!)`
`Optional<T!>!`	`or(other: Optional<T!>!)`
`T!`	`or(other: T!)`
`T!`	`or(supplier: Supplier<T!>!)`
`T!`	`orNull()`
`java-static (Mutable)Iterable<T!>!`	`<T> presentInstances(optionals: (Mutable)Iterable<Optional<T!>!>!)`
`Optional<V!>!`	`<V> transform(function: Function<T!, V!>!)`

fun asSet(): (Mutable)Set<T!>!

fun equals(object: Any!): Boolean

java-static fun <T> fromNullable(value: T?): Optional<T!>!

fun get(): T!

fun hashCode(): Int

fun isPresent(): Boolean

java-static fun <T> of(value: T!): Optional<T!>!

fun or(other: Optional<T!>!): Optional<T!>!

fun or(other: T!): T!

fun or(supplier: Supplier<T!>!): T!

fun orNull(): T!

java-static fun <T> presentInstances(optionals: (Mutable)Iterable<Optional<T!>!>!): (Mutable)Iterable<T!>!

fun <V> transform(function: Function<T!, V!>!): Optional<V!>!