scala.collection

JavaConverters

object JavaConverters extends DecorateAsJava with DecorateAsScala

A collection of decorators that allow converting between Scala and Java collections using asScala and asJava methods.

The following conversions are supported via asJava, asScala

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

import scala.collection.JavaConverters._

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

The following conversions also are supported, but the direction Scala to Java is done my a more specifically named method: asJavaCollection, asJavaEnumeration, asJavaDictionary.

In addition, the following one way conversions are provided via asJava:

Since

2.8.1

Linear Supertypes
DecorateAsScala, DecorateAsJava, AnyRef, Any
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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 asJavaCollectionConverter[A](i: Iterable[A]): convert.Decorators.AsJavaCollection[A]

    Adds an asJavaCollection method that implicitly converts a Scala Iterable to an immutable Java Collection.

    Adds an asJavaCollection method that 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.

    i

    The SizedIterable to be converted.

    returns

    An object with an asJava method that returns a Java Collection view of the argument.

    Definition Classes
    DecorateAsJava

  8. implicit def asJavaDictionaryConverter[A, B](m: mutable.Map[A, B]): convert.Decorators.AsJavaDictionary[A, B]

    Adds an asJavaDictionary method that implicitly converts a Scala mutable Map to a Java Dictionary.

    Adds an asJavaDictionary method that 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

    An object with an asJavaDictionary method that returns a Java Dictionary view of the argument.

    Definition Classes
    DecorateAsJava

  9. implicit def asJavaEnumerationConverter[A](i: Iterator[A]): convert.Decorators.AsJavaEnumeration[A]

    Adds an asJavaEnumeration method that implicitly converts a Scala Iterator to a Java Enumeration.

    Adds an asJavaEnumeration method that 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.

    i

    The Iterator to be converted.

    returns

    An object with an asJavaEnumeration method that returns a Java Enumeration view of the argument.

    Definition Classes
    DecorateAsJava

  10. implicit def asJavaIterableConverter[A](i: Iterable[A]): convert.Decorators.AsJava[java.lang.Iterable[A]]

    Adds an asJava method that implicitly converts a Scala Iterable to a Java Iterable.

    Adds an asJava method that 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

    An object with an asJavaCollection method that returns a Java Iterable view of the argument.

    Definition Classes
    DecorateAsJava

  11. implicit def asJavaIteratorConverter[A](i: Iterator[A]): convert.Decorators.AsJava[java.util.Iterator[A]]

    Adds an asJava method that implicitly converts a Scala Iterator to a Java Iterator.

    Adds an asJava method that 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 by the asJava method.

    i

    The Iterator to be converted.

    returns

    An object with an asJava method that returns a Java Iterator view of the argument.

    Definition Classes
    DecorateAsJava

  12. implicit def asScalaBufferConverter[A](l: java.util.List[A]): convert.Decorators.AsScala[Buffer[A]]

    Adds an asScala method that implicitly converts a Java List to a Scala mutable Buffer.

    Adds an asScala method that 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 asList(scala.collection.mutable.Buffer) then the original Scala Buffer will be returned.

    l

    The List to be converted.

    returns

    An object with an asScala method that returns a Scala mutable Buffer view of the argument.

    Definition Classes
    DecorateAsScala

  13. implicit def asScalaIteratorConverter[A](i: java.util.Iterator[A]): convert.Decorators.AsScala[Iterator[A]]

    Adds an asScala method that implicitly converts a Java Iterator to a Scala Iterator.

    Adds an asScala method that 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.

    i

    The Iterator to be converted.

    returns

    An object with an asScala method that returns a Scala Iterator view of the argument.

    Definition Classes
    DecorateAsScala

  14. implicit def asScalaSetConverter[A](s: java.util.Set[A]): convert.Decorators.AsScala[mutable.Set[A]]

    Adds an asScala method that implicitly converts a Java Set to a Scala mutable Set.

    Adds an asScala method that 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 asSet(scala.collection.mutable.Set) then the original Scala Set will be returned.

    s

    The Set to be converted.

    returns

    An object with an asScala method that returns a Scala mutable Set view of the argument.

    Definition Classes
    DecorateAsScala

  15. implicit def bufferAsJavaListConverter[A](b: Buffer[A]): convert.Decorators.AsJava[java.util.List[A]]

    Adds an asJava method that implicitly converts a Scala mutable Buffer to a Java List.

    Adds an asJava method that 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

    An object with an asJava method that returns a Java List view of the argument.

    Definition Classes
    DecorateAsJava

  16. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  17. implicit def collectionAsScalaIterableConverter[A](i: Collection[A]): convert.Decorators.AsScala[Iterable[A]]

    Adds an asScala method that implicitly converts a Java Collection to an Scala Iterable.

    Adds an asScala method that implicitly converts a Java Collection to an Scala Iterable.

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

    i

    The Collection to be converted.

    returns

    An object with an asScala method that returns a Scala SizedIterable view of the argument.

    Definition Classes
    DecorateAsScala

  18. implicit def dictionaryAsScalaMapConverter[A, B](p: Dictionary[A, B]): convert.Decorators.AsScala[mutable.Map[A, B]]

    Adds an asScala method that implicitly converts a Java Dictionary to a Scala mutable Map[String, String].

    Adds an asScala method that 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

    An object with an asScala method that returns a Scala mutable Map[String, String] view of the argument.

    Definition Classes
    DecorateAsScala

  19. implicit def enumerationAsScalaIteratorConverter[A](i: java.util.Enumeration[A]): convert.Decorators.AsScala[Iterator[A]]

    Adds an asScala method that implicitly converts a Java Enumeration to a Scala Iterator.

    Adds an asScala method that 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 asEnumeration(scala.collection.Iterator) then the original Scala Iterator will be returned.

    i

    The Enumeration to be converted.

    returns

    An object with an asScala method that returns a Scala Iterator view of the argument.

    Definition Classes
    DecorateAsScala

  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 iterableAsScalaIterableConverter[A](i: java.lang.Iterable[A]): convert.Decorators.AsScala[Iterable[A]]

    Adds an asScala method that implicitly converts a Java Iterable to a Scala Iterable.

    Adds an asScala method that 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 asIterable(scala.collection.Iterable) then the original Scala Iterable will be returned.

    i

    The Iterable to be converted.

    returns

    An object with an asScala method that returns a Scala Iterable view of the argument.

    Definition Classes
    DecorateAsScala

  27. implicit def mapAsJavaConcurrentMapConverter[A, B](m: concurrent.Map[A, B]): convert.Decorators.AsJava[ConcurrentMap[A, B]]

    Adds an asJava method that implicitly converts a Scala mutable concurrent.Map to a Java ConcurrentMap.

    Adds an asJava method that 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 asConcurrentMap(java.util.concurrent.ConcurrentMap) then the original Java ConcurrentMap will be returned.

    m

    The Scala concurrent.Map to be converted.

    returns

    An object with an asJava method that returns a Java ConcurrentMap view of the argument.

    Definition Classes
    DecorateAsJava

  28. implicit def mapAsJavaMapConverter[A, B](m: Map[A, B]): convert.Decorators.AsJava[java.util.Map[A, B]]

    Adds an asJava method that implicitly converts a Scala Map to a Java Map.

    Adds an asJava method that 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

    An object with an asJava method that returns a Java Map view of the argument.

    Definition Classes
    DecorateAsJava

  29. implicit def mapAsScalaConcurrentMapConverter[A, B](m: ConcurrentMap[A, B]): convert.Decorators.AsScala[concurrent.Map[A, B]]

    Adds an asScala method that implicitly converts a Java ConcurrentMap to a Scala mutable concurrent.Map.

    Adds an asScala method that implicitly converts a Java ConcurrentMap to a Scala mutable concurrent.Map. The returned Scala concurrent.Map 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 mapAsScalaConcurrentMap(scala.collection.mutable.ConcurrentMap) then the original Scala concurrent.Map will be returned.

    m

    The ConcurrentMap to be converted.

    returns

    An object with an asScala method that returns a Scala mutable concurrent.Map view of the argument.

    Definition Classes
    DecorateAsScala

  30. implicit def mapAsScalaMapConverter[A, B](m: java.util.Map[A, B]): convert.Decorators.AsScala[mutable.Map[A, B]]

    Adds an asScala method that implicitly converts a Java Map to a Scala mutable Map.

    Adds an asScala method that 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 asMap(scala.collection.mutable.Map) then the original Scala Map will be returned.

    m

    The Map to be converted.

    returns

    An object with an asScala method that returns a Scala mutable Map view of the argument.

    Definition Classes
    DecorateAsScala

  31. implicit def mutableMapAsJavaMapConverter[A, B](m: mutable.Map[A, B]): convert.Decorators.AsJava[java.util.Map[A, B]]

    Adds an asJava method that implicitly converts a Scala mutable Map to a Java Map.

    Adds an asJava method that 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

    An object with an asJava method that returns a Java Map view of the argument.

    Definition Classes
    DecorateAsJava

  32. implicit def mutableSeqAsJavaListConverter[A](b: mutable.Seq[A]): convert.Decorators.AsJava[java.util.List[A]]

    Adds an asJava method that implicitly converts a Scala mutable Seq to a Java List.

    Adds an asJava method that 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.

    b

    The Seq to be converted.

    returns

    An object with an asJava method that returns a Java List view of the argument.

    Definition Classes
    DecorateAsJava

  33. implicit def mutableSetAsJavaSetConverter[A](s: mutable.Set[A]): convert.Decorators.AsJava[java.util.Set[A]]

    Adds an asJava method that implicitly converts a Scala mutable Set> to a Java Set.

    Adds an asJava method that 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

    An object with an asJava method that returns a Java Set view of the argument.

    Definition Classes
    DecorateAsJava

  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 propertiesAsScalaMapConverter(p: Properties): convert.Decorators.AsScala[mutable.Map[String, String]]

    Adds an asScala method that implicitly converts a Java Properties to a Scala mutable Map[String, String].

    Adds an asScala method that 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

    An object with an asScala method that returns a Scala mutable Map[String, String] view of the argument.

    Definition Classes
    DecorateAsScala

  38. implicit def seqAsJavaListConverter[A](b: Seq[A]): convert.Decorators.AsJava[java.util.List[A]]

    Adds an asJava method that implicitly converts a Scala Seq to a Java List.

    Adds an asJava method that 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.

    b

    The Seq to be converted.

    returns

    An object with an asJava method that returns a Java List view of the argument.

    Definition Classes
    DecorateAsJava

  39. implicit def setAsJavaSetConverter[A](s: Set[A]): convert.Decorators.AsJava[java.util.Set[A]]

    Adds an asJava method that implicitly converts a Scala Set to a Java Set.

    Adds an asJava method that 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

    An object with an asJava method that returns a Java Set view of the argument.

    Definition Classes
    DecorateAsJava

  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 DecorateAsScala

Inherited from DecorateAsJava

Inherited from AnyRef

Inherited from Any

Ungrouped