scala.collection

JavaConversions

object JavaConversions extends WrapAsScala with WrapAsJava

A collection of implicit conversions supporting interoperability between Scala and Java collections.

The following conversions are supported:

scala.collection.Iterable <=> java.lang.Iterable
scala.collection.Iterable <=> java.util.Collection
scala.collection.Iterator <=> java.util.{ Iterator, Enumeration }
scala.collection.mutable.Buffer <=> java.util.List
scala.collection.mutable.Set <=> java.util.Set
scala.collection.mutable.Map <=> java.util.{ Map, Dictionary }
scala.collection.concurrent.Map <=> java.util.concurrent.ConcurrentMap

In all cases, converting from a source type to a target type and back again will return the original source object, eg.

import scala.collection.JavaConversions._

val sl = new scala.collection.mutable.ListBuffer[Int]
val jl : java.util.List[Int] = sl
val sl2 : scala.collection.mutable.Buffer[Int] = jl
assert(sl eq sl2)

In addition, the following one way conversions are provided:

scala.collection.Seq         => java.util.List
scala.collection.mutable.Seq => java.util.List
scala.collection.Set         => java.util.Set
scala.collection.Map         => java.util.Map
java.util.Properties         => scala.collection.mutable.Map[String, String]
Since

2.8

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  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. implicit def asJavaCollection[A](it: Iterable[A]): Collection[A]

    Implicitly converts a Scala Iterable to an immutable Java Collection.

    Implicitly converts a Scala Iterable to an immutable Java Collection.

    If the Scala Iterable was previously obtained from an implicit or explicit call of asSizedIterable(java.util.Collection) then the original Java Collection will be returned.

    it

    The SizedIterable to be converted.

    returns

    A Java Collection view of the argument.

    Definition Classes
    WrapAsJava
  8. implicit def asJavaDictionary[A, B](m: mutable.Map[A, B]): Dictionary[A, B]

    Implicitly converts a Scala mutable Map to a Java Dictionary.

    Implicitly converts a Scala mutable Map to a Java Dictionary.

    The returned Java Dictionary is backed by the provided Scala Dictionary and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Dictionary was previously obtained from an implicit or explicit call of asMap(java.util.Dictionary) then the original Java Dictionary will be returned.

    m

    The Map to be converted.

    returns

    A Java Dictionary view of the argument.

    Definition Classes
    WrapAsJava
  9. implicit def asJavaEnumeration[A](it: Iterator[A]): java.util.Enumeration[A]

    Implicitly converts a Scala Iterator to a Java Enumeration.

    Implicitly converts a Scala Iterator to a Java Enumeration. The returned Java Enumeration is backed by the provided Scala Iterator and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Iterator was previously obtained from an implicit or explicit call of asIterator(java.util.Enumeration) then the original Java Enumeration will be returned.

    it

    The Iterator to be converted.

    returns

    A Java Enumeration view of the argument.

    Definition Classes
    WrapAsJava
  10. implicit def asJavaIterable[A](i: Iterable[A]): java.lang.Iterable[A]

    Implicitly converts a Scala Iterable to a Java Iterable.

    Implicitly converts a Scala Iterable to a Java Iterable. The returned Java Iterable is backed by the provided Scala Iterable and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Iterable was previously obtained from an implicit or explicit call of asIterable(java.lang.Iterable) then the original Java Iterable will be returned.

    i

    The Iterable to be converted.

    returns

    A Java Iterable view of the argument.

    Definition Classes
    WrapAsJava
  11. implicit def asJavaIterator[A](it: Iterator[A]): java.util.Iterator[A]

    Implicitly converts a Scala Iterator to a Java Iterator.

    Implicitly converts a Scala Iterator to a Java Iterator. The returned Java Iterator is backed by the provided Scala Iterator and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Iterator was previously obtained from an implicit or explicit call of asIterator(java.util.Iterator) then the original Java Iterator will be returned.

    it

    The Iterator to be converted.

    returns

    A Java Iterator view of the argument.

    Definition Classes
    WrapAsJava
  12. implicit def asScalaBuffer[A](l: java.util.List[A]): Buffer[A]

    Implicitly converts a Java List to a Scala mutable Buffer.

    Implicitly converts a Java List to a Scala mutable Buffer.

    The returned Scala Buffer is backed by the provided Java List and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java List was previously obtained from an implicit or explicit call of asScalaBuffer(scala.collection.mutable.Buffer) then the original Scala Buffer will be returned.

    l

    The List to be converted.

    returns

    A Scala mutable Buffer view of the argument.

    Definition Classes
    WrapAsScala
  13. implicit def asScalaIterator[A](it: java.util.Iterator[A]): Iterator[A]

    Implicitly converts a Java Iterator to a Scala Iterator.

    Implicitly converts a Java Iterator to a Scala Iterator.

    The returned Scala Iterator is backed by the provided Java Iterator and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java Iterator was previously obtained from an implicit or explicit call of asIterator(scala.collection.Iterator) then the original Scala Iterator will be returned.

    it

    The Iterator to be converted.

    returns

    A Scala Iterator view of the argument.

    Definition Classes
    WrapAsScala
  14. implicit def asScalaSet[A](s: java.util.Set[A]): mutable.Set[A]

    Implicitly converts a Java Set to a Scala mutable Set.

    Implicitly converts a Java Set to a Scala mutable Set. The returned Scala Set is backed by the provided Java Set and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java Set was previously obtained from an implicit or explicit call of asScalaSet(scala.collection.mutable.Set) then the original Scala Set will be returned.

    s

    The Set to be converted.

    returns

    A Scala mutable Set view of the argument.

    Definition Classes
    WrapAsScala
  15. implicit def bufferAsJavaList[A](b: Buffer[A]): java.util.List[A]

    Implicitly converts a Scala mutable Buffer to a Java List.

    Implicitly converts a Scala mutable Buffer to a Java List. The returned Java List is backed by the provided Scala Buffer and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Buffer was previously obtained from an implicit or explicit call of asBuffer(java.util.List) then the original Java List will be returned.

    b

    The Buffer to be converted.

    returns

    A Java List view of the argument.

    Definition Classes
    WrapAsJava
  16. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  17. implicit def collectionAsScalaIterable[A](i: Collection[A]): Iterable[A]

    Implicitly converts a Java Collection to an Scala Iterable.

    Implicitly converts a Java Collection to an Scala Iterable.

    If the Java Collection was previously obtained from an implicit or explicit call of collectionAsScalaIterable(scala.collection.SizedIterable) then the original Scala Iterable will be returned.

    i

    The Collection to be converted.

    returns

    A Scala Iterable view of the argument.

    Definition Classes
    WrapAsScala
  18. implicit def dictionaryAsScalaMap[A, B](p: Dictionary[A, B]): mutable.Map[A, B]

    Implicitly converts a Java Dictionary to a Scala mutable Map[String, String].

    Implicitly converts a Java Dictionary to a Scala mutable Map[String, String].

    The returned Scala Map[String, String] is backed by the provided Java Dictionary and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    p

    The Dictionary to be converted.

    returns

    A Scala mutable Map[String, String] view of the argument.

    Definition Classes
    WrapAsScala
  19. implicit def enumerationAsScalaIterator[A](i: java.util.Enumeration[A]): Iterator[A]

    Implicitly converts a Java Enumeration to a Scala Iterator.

    Implicitly converts a Java Enumeration to a Scala Iterator. The returned Scala Iterator is backed by the provided Java Enumeration and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java Enumeration was previously obtained from an implicit or explicit call of enumerationAsScalaIterator(scala.collection.Iterator) then the original Scala Iterator will be returned.

    i

    The Enumeration to be converted.

    returns

    A Scala Iterator view of the argument.

    Definition Classes
    WrapAsScala
  20. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  21. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  22. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  23. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  24. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  25. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  26. implicit def iterableAsScalaIterable[A](i: java.lang.Iterable[A]): Iterable[A]

    Implicitly converts a Java Iterable to a Scala Iterable.

    Implicitly converts a Java Iterable to a Scala Iterable.

    The returned Scala Iterable is backed by the provided Java Iterable and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java Iterable was previously obtained from an implicit or explicit call of iterableAsScalaIterable(scala.collection.Iterable) then the original Scala Iterable will be returned.

    i

    The Iterable to be converted.

    returns

    A Scala Iterable view of the argument.

    Definition Classes
    WrapAsScala
  27. implicit def mapAsJavaConcurrentMap[A, B](m: concurrent.Map[A, B]): ConcurrentMap[A, B]

    Implicitly converts a Scala mutable concurrent.Map to a Java ConcurrentMap.

    Implicitly converts a Scala mutable concurrent.Map to a Java ConcurrentMap.

    The returned Java ConcurrentMap is backed by the provided Scala concurrent.Map and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala concurrent.Map was previously obtained from an implicit or explicit call of mapAsScalaConcurrentMap(java.util.concurrect.ConcurrentMap) then the original Java ConcurrentMap will be returned.

    m

    The Scala concurrent.Map to be converted.

    returns

    A Java ConcurrentMap view of the argument.

    Definition Classes
    WrapAsJava
  28. implicit def mapAsJavaMap[A, B](m: Map[A, B]): java.util.Map[A, B]

    Implicitly converts a Scala Map to a Java Map.

    Implicitly converts a Scala Map to a Java Map.

    The returned Java Map is backed by the provided Scala Map and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Map was previously obtained from an implicit or explicit call of asMap(java.util.Map) then the original Java Map will be returned.

    m

    The Map to be converted.

    returns

    A Java Map view of the argument.

    Definition Classes
    WrapAsJava
  29. implicit def mapAsScalaConcurrentMap[A, B](m: ConcurrentMap[A, B]): concurrent.Map[A, B]

    Implicitly converts a Java ConcurrentMap to a Scala mutable ConcurrentMap.

    Implicitly converts a Java ConcurrentMap to a Scala mutable ConcurrentMap. The returned Scala ConcurrentMap is backed by the provided Java ConcurrentMap and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java ConcurrentMap was previously obtained from an implicit or explicit call of asConcurrentMap(scala.collection.mutable.ConcurrentMap) then the original Scala ConcurrentMap will be returned.

    m

    The ConcurrentMap to be converted.

    returns

    A Scala mutable ConcurrentMap view of the argument.

    Definition Classes
    WrapAsScala
  30. implicit def mapAsScalaMap[A, B](m: java.util.Map[A, B]): mutable.Map[A, B]

    Implicitly converts a Java Map to a Scala mutable Map.

    Implicitly converts a Java Map to a Scala mutable Map.

    The returned Scala Map is backed by the provided Java Map and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    If the Java Map was previously obtained from an implicit or explicit call of mapAsScalaMap(scala.collection.mutable.Map) then the original Scala Map will be returned.

    m

    The Map to be converted.

    returns

    A Scala mutable Map view of the argument.

    Definition Classes
    WrapAsScala
  31. implicit def mutableMapAsJavaMap[A, B](m: mutable.Map[A, B]): java.util.Map[A, B]

    Implicitly converts a Scala mutable Map to a Java Map.

    Implicitly converts a Scala mutable Map to a Java Map. The returned Java Map is backed by the provided Scala Map and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Map was previously obtained from an implicit or explicit call of asMap(java.util.Map) then the original Java Map will be returned.

    m

    The Map to be converted.

    returns

    A Java Map view of the argument.

    Definition Classes
    WrapAsJava
  32. implicit def mutableSeqAsJavaList[A](seq: mutable.Seq[A]): java.util.List[A]

    Implicitly converts a Scala mutable Seq to a Java List.

    Implicitly converts a Scala mutable Seq to a Java List. The returned Java List is backed by the provided Scala Seq and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Seq was previously obtained from an implicit or explicit call of asSeq(java.util.List) then the original Java List will be returned.

    seq

    The Seq to be converted.

    returns

    A Java List view of the argument.

    Definition Classes
    WrapAsJava
  33. implicit def mutableSetAsJavaSet[A](s: mutable.Set[A]): java.util.Set[A]

    Implicitly converts a Scala mutable Set to a Java Set.

    Implicitly converts a Scala mutable Set to a Java Set. The returned Java Set is backed by the provided Scala Set and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Set was previously obtained from an implicit or explicit call of asSet(java.util.Set) then the original Java Set will be returned.

    s

    The Set to be converted.

    returns

    A Java Set view of the argument.

    Definition Classes
    WrapAsJava
  34. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  35. final def notify(): Unit

    Definition Classes
    AnyRef
  36. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  37. implicit def propertiesAsScalaMap(p: Properties): mutable.Map[String, String]

    Implicitly converts a Java Properties to a Scala mutable Map[String, String].

    Implicitly converts a Java Properties to a Scala mutable Map[String, String].

    The returned Scala Map[String, String] is backed by the provided Java Properties and any side-effects of using it via the Scala interface will be visible via the Java interface and vice versa.

    p

    The Properties to be converted.

    returns

    A Scala mutable Map[String, String] view of the argument.

    Definition Classes
    WrapAsScala
  38. implicit def seqAsJavaList[A](seq: Seq[A]): java.util.List[A]

    Implicitly converts a Scala Seq to a Java List.

    Implicitly converts a Scala Seq to a Java List. The returned Java List is backed by the provided Scala Seq and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Seq was previously obtained from an implicit or explicit call of asSeq(java.util.List) then the original Java List will be returned.

    seq

    The Seq to be converted.

    returns

    A Java List view of the argument.

    Definition Classes
    WrapAsJava
  39. implicit def setAsJavaSet[A](s: Set[A]): java.util.Set[A]

    Implicitly converts a Scala Set to a Java Set.

    Implicitly converts a Scala Set to a Java Set. The returned Java Set is backed by the provided Scala Set and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.

    If the Scala Set was previously obtained from an implicit or explicit call of asSet(java.util.Set) then the original Java Set will be returned.

    s

    The Set to be converted.

    returns

    A Java Set view of the argument.

    Definition Classes
    WrapAsJava
  40. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  41. def toString(): String

    Definition Classes
    AnyRef → Any
  42. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  43. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  44. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from WrapAsJava

Inherited from WrapAsScala

Inherited from AnyRef

Inherited from Any

Ungrouped