scalaj-collection. A library for converting between Java and Scala collections. Usage. Turn any Scala collection into the corresponding Java collection:

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* @param schema The schema where all the play evolution tables are saved in */ public static void cleanupEvolutions(Database database, boolean autocommit, String A variety of decorators that enable converting between Scala and Java collections using extension methods, asScala and asJava. The extension methods return adapters for the corresponding API. The following conversions are supported via asScala and asJava : Using the .asJava extension method on a Scala function produces the most specific possible Java function type: scala> import scala.jdk.FunctionConverters._ scala> val f = (x: Int) => x + 1 scala> val jf1 = f.asJava jf1: java.util.function.IntUnaryOperator = Announcing Dotty 0.21.0-RC1 - explicit nulls, new syntax for `match` and conditional givens, and more. Announcing Dotty 0.20.0-RC1 – `with` starting indentation blocks, inline g Routes. The “Route” is the central concept of Akka HTTP’s Routing DSL. All the structures you build with the DSL, no matter whether they consists of a single line or span several hundred lines, are type function turning a RequestContext RequestContext into a Future[RouteResult] CompletionStage.

Scala Standard Library 2.12.1 - scala.collection.convert.ImplicitConversions. implicit def collection asJava[A](it: Iterable[A]): Collection[A]. Implicitly converts a

How to use Scala traits in Java. With Java 11 you can use a Scala trait just like a Java interface, even if the trait has implemented methods. For example, given these two Scala traits, one with an implemented method and one with only an interface: Using the .asJava extension method on a Scala function produces the most specific possible Java function type: scala> import scala.jdk.FunctionConverters._ scala> val f = (x: Int) => x + 1 scala> val jf1 = f.asJava jf1: java.util.function.IntUnaryOperator = Adds an asJava method that implicitly converts a Scala mutable ConcurrentMap to a Java ConcurrentMap.The returned Java ConcurrentMap is backed by the provided Scala ConcurrentMapand any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa. Steppers exist to enable creating Java streams over Scala collections, see scala.jdk.StreamConverters.

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Additional parts of the standard library are shipped as separate libraries. These include: scala.reflect - Scala's reflection API (scala-reflect.jar) scala.xml - XML parsing, manipulation, and serialization (scala-xml.jar) val scalaMap = // Some Map [String, Double] val javaMap = scalaMap.mapValues (Double.box) After this, javaMap is a Map [String, java.lang.Double]. Then you can pass this to a java function that expects a Map and thanks to implicit conversions the Scala Map will be converted to java.util.Map. Share. Class scala.collection.JavaConverters.AsJava class AsJava [ A ] extends AnyRef Generic class containing the asJava converter method Scala is part of the Java Virtual Machine ecosystem. Therefore, any non-green field project will probably interact with Java libraries. Besides, those interactions might require us to either pass Java collections as parameters, receive them as return values, or most likely both.

Rename the (deprecated) implicit conversion methods in JavaConversions. lrytz on Apr 20, 2016. Routes. The “Route” is the central concept of Akka HTTP’s Routing DSL. All the structures you build with the DSL, no matter whether they consists of a single line or span several hundred lines, are type function turning a RequestContext RequestContext into a Future[RouteResult] CompletionStage. kafka-serialization-jsoniter-scala: provides serializer and deserializer based on Jsoniter Scala The Avro4s serialization support the schema evolution through the schema registry. The consumer can provide its own schema and Avro will take care of the conversion. Conversions Between Java and Scala Collections.
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sealed abstract class OptionShape[A, O] A type class implementing conversions from a generic Scala Option or Java Optional to a specialized Java variant (for Double, Int and Long).

Rename the (deprecated) implicit conversion methods in JavaConversions. lrytz on Apr 20, 2016. Routes.
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16 Feb 2017 Quieres empezar a programar en Scala. Como toda tecnología relativamente novedosa, hay parte de misticismo y humo alrededor. Con lo que

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Scala. Haskell. Erlang. Excel is a very good example of functional language Executes functions not row by row as imperativ programming such as JAVA, C#,

17 Apr 2018 I was exploring immutable RedBlackTree tree implementation in Scala (2.12.4) when I noticed something that wasn't clear to me: private[this] Strings in Scala are same as java string and hence the value is of type java.lang. String. Subtype polymorphism is the dual of ad-hoc polymorphism: to change Scala tiene: 25 years of experience; 500 socios a nivel mundial; Presencia en 100 países; Más de 500 000 pantallas activas.