play.libs
Class Scala

java.lang.Object
  play.libs.Scala

public class Scala
extends java.lang.Object

Class that contains useful java <-> scala conversion helpers.

Scala

public Scala()

orNull

public static <T> T orNull(scala.Option<T> opt)

Wrap a Scala Option, handling None as null.

orElse

public static <T> T orElse(scala.Option<T> opt,
                           T defaultValue)

Wrap a Scala Option, handling None by returning a defaultValue

asJava

public static <K,V> java.util.Map<K,V> asJava(scala.collection.Map<K,V> scalaMap)

Converts a Scala Map to Java.

asScala

public static <A,B> scala.collection.immutable.Map<A,B> asScala(java.util.Map<A,B> javaMap)

Converts a Java Map to Scala.

asJava

public static <T> java.util.List<T> asJava(scala.collection.Seq<T> scalaList)

Converts a Scala List to Java.

toSeq

public static <T> scala.collection.Seq<T> toSeq(java.util.List<T> list)

Converts a Java List to Scala Seq.

toSeq

public static <T> scala.collection.Seq<T> toSeq(T[] array)

Converts a Java Array to Scala Seq.

varargs

public static <T> scala.collection.Seq<T> varargs(T... array)

Converts a Java varargs to Scala Seq.

Option

public static <T> scala.Option<T> Option(T t)

Wrap a value into a Scala Option.

None

public static <T> scala.Option<T> None()

None

Tuple

public static <A,B> scala.Tuple2<A,B> Tuple(A a,
                                            B b)

Create a Scala Tuple2.

emptySeq

public static <T> scala.collection.Seq<T> emptySeq()

Creates an empty Scala Seq.

emptyMap

public static <A,B> scala.collection.immutable.Map<A,B> emptyMap()

Creates an empty Scala Map.