A collection of decorators that allow to convert between
Scala and Java collections using asScala and asJava methods.
The following conversions are supported via asJava, asScala
scala.collection.Iterable <=> java.lang.Iterablescala.collection.Iterator <=> java.util.Iteratorscala.collection.mutable.Buffer <=> java.util.Listscala.collection.mutable.Set <=> java.util.Setscala.collection.mutable.Map <=> java.util.Mapscala.collection.mutable.ConcurrentMap <=> java.util.concurrent.ConcurrentMapIn 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)g
The following conversions also are supported, but the
direction Scala to Java is done my a more specifically named method:
asJavaCollection, asJavaEnumeration, asJavaDictionary.
scala.collection.Iterable <=> java.util.Collectionscala.collection.Iterator <=> java.util.Enumerationscala.collection.mutable.Map <=> java.util.Dictionary In addition, the following one way conversions are provided via asJava:
scala.collection.Seq => java.util.List }scala.collection.mutable.Seq => java.util.Listscala.collection.Set => java.util.Setscala.collection.Map => java.util.Map2.8.1
Generic class containing the asJava converter method
Generic class containing the asJavaCollection converter method
Generic class containing the asJavaDictionary converter method
Generic class containing the asJavaEnumeration converter method
Generic class containing the asScala converter method
o != arg0 is the same as !(o == (arg0)).
o != arg0 is the same as !(o == (arg0)).
the object to compare against this object for dis-equality.
false if the receiver object is equivalent to the argument; true otherwise.
o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).
o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
o == arg0 is the same as o.equals(arg0).
o == arg0 is the same as o.equals(arg0).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
This method is used to cast the receiver object to be of type T0.
This method is used to cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression
1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression
List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as
part of compilation it is not possible to check whether the contents of the list are of the requested typed.
the receiver object.
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.
The SizedIterable to be converted.
An object with an asJava method that returns a Java Collection view of the argument.
Adds an asJava method that implicitly converts a Scala mutable ConcurrentMap to a Java ConcurrentMap.
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 ConcurrentMap
and any side-effects of using it via the Java interface will be visible
via the Scala interface and vice versa.
If the Scala ConcurrentMap was previously obtained from an implicit or
explicit call of asConcurrentMap(java.util.concurrect.ConcurrentMap) then the original
Java ConcurrentMap will be returned.
The ConcurrentMap to be converted.
An object with an asJava method that returns a Java ConcurrentMap view of the argument.
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.
The Map to be converted.
An object with an asJavaDictionary method that returns a Java Dictionary view of the argument.
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.
The Iterator to be converted.
An object with an asJavaEnumeration method that returns a Java Enumeration view of the argument.
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.
The Iterable to be converted.
An object with an asJavaCollection method that returns a Java Iterable view of the argument.
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.
The Iterator to be converted.
An object with an asJava method that returns a Java Iterator view of the argument.
Use seqAsJavaListConverter instead
Use mutableSeqAsJavaListConverter instead
Use bufferAsJavaListConverter instead
Use mapAsJavaMapConverter instead
use mutableMapAsJavaMapConverter instead
Use setAsJavaSetConverter instead
Use mutableSetAsJavaSetConverter instead
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.
The List to be converted.
An object with an asScala method that returns a Scala mutable Buffer view of the argument.
Adds an asScala method that implicitly converts a Java ConcurrentMap to a Scala mutable ConcurrentMap.
Adds an asScala method that 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.
The ConcurrentMap to be converted.
An object with an asScala method that returns a Scala mutable ConcurrrentMap view of the argument.
Use collectionAsScalaIterableConverter instead
Use iterableAsScalaIterableConverter instead
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.
The Iterator to be converted.
An object with an asScala method that returns a Scala Iterator view of the argument.
Use propertiesAsScalaMapConverter instead
Use mapAsScalaMapConverter instead
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.
The Set to be converted.
An object with an asScala method that returns a Scala mutable Set view of the argument.
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.
The Buffer to be converted.
An object with an asJava method that returns a Java List view of the argument.
This method creates and returns a copy of the receiver object.
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.
The Collection to be converted.
An object with an asScala method that returns a Scala SizedIterable view of the argument.
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.
An object with an asScala method that returns a Scala mutable Map[String, String] view of the argument.
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.
The Enumeration to be converted.
An object with an asScala method that returns a Scala Iterator view of the argument.
This method is used to test whether the argument (arg0) is a reference to the
receiver object (this).
This method is used to test whether the argument (arg0) is a reference to the
receiver object (this).
The eq method implements an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation] on
non-null instances of AnyRef:
* It is reflexive: for any non-null instance x of type AnyRef, x.eq(x) returns true.
* It is symmetric: for any non-null instances x and y of type AnyRef, x.eq(y) returns true if and
only if y.eq(x) returns true.
* It is transitive: for any non-null instances x, y, and z of type AnyRef if x.eq(y) returns true
and y.eq(z) returns true, then x.eq(z) returns true.
Additionally, the eq method has three other properties.
* It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.
* For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
* null.eq(null) returns true.
When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
the object to compare against this object for reference equality.
true if the argument is a reference to the receiver object; false otherwise.
This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.
This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.
The default implementations of this method is an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence
relation]:
* It is reflexive: for any instance x of type Any, x.equals(x) should return true.
* It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and
only if y.equals(x) returns true.
* It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and
y.equals(z) returns true, then x.equals(z) should return true.
If you override this method, you should verify that your implementation remains an equivalence relation.
Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects
that are "equal" (o1.equals(o2) returns true) hash to the same Int
(o1.hashCode.equals(o2.hashCode)).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.
This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.
The details of when and if the finalize method are invoked, as well as the interaction between finalize
and non-local returns and exceptions, are all platform dependent.
Returns a representation that corresponds to the dynamic class of the receiver object.
Returns a representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
Returns a hash code value for the object.
Returns a hash code value for the object.
The default hashing algorithm is platform dependent.
Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet
not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0.
However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have
identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure
to verify that the behavior is consistent with the equals method.
the hash code value for the object.
This method is used to test whether the dynamic type of the receiver object is T0.
This method is used to test whether the dynamic type of the receiver object is T0.
Note that the test result of the test is modulo Scala's erasure semantics. Therefore the expression
1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will
return true. In the latter example, because the type argument is erased as part of compilation it is not
possible to check whether the contents of the list are of the requested typed.
true if the receiver object is an instance of erasure of type T0; false otherwise.
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.
The Iterable to be converted.
An object with an asScala method that returns a Scala Iterable view of the argument.
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.
The Map to be converted.
An object with an asJava method that returns a Java Map view of the argument.
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.
The Map to be converted.
An object with an asScala method that returns a Scala mutable Map view of the argument.
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.
The Map to be converted.
An object with an asJava method that returns a Java Map view of the argument.
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.
The Seq to be converted.
An object with an asJava method that returns a Java List view of the argument.
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.
The Set to be converted.
An object with an asJava method that returns a Java Set view of the argument.
o.ne(arg0) is the same as !(o.eq(arg0)).
o.ne(arg0) is the same as !(o.eq(arg0)).
the object to compare against this object for reference dis-equality.
false if the argument is not a reference to the receiver object; true otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
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.
An object with an asScala method that returns a Scala mutable Map[String, String] view of the argument.
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.
The Seq to be converted.
An object with an asJava method that returns a Java List view of the argument.
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.
The Set to be converted.
An object with an asJava method that returns a Java Set view of the argument.
Returns a string representation of the object.
Returns a string representation of the object.
The default representation is platform dependent.
a string representation of the object.
A collection of decorators that allow to convert between Scala and Java collections using
asScalaandasJavamethods.The following conversions are supported via
asJava,asScalascala.collection.Iterable<=>java.lang.Iterablescala.collection.Iterator<=>java.util.Iteratorscala.collection.mutable.Buffer<=>java.util.Listscala.collection.mutable.Set<=>java.util.Setscala.collection.mutable.Map<=>java.util.Mapscala.collection.mutable.ConcurrentMap<=>java.util.concurrent.ConcurrentMapIn all cases, converting from a source type to a target type and back again will return the original source object, e.g.
The following conversions also are supported, but the direction Scala to Java is done my a more specifically named method:
asJavaCollection,asJavaEnumeration,asJavaDictionary.scala.collection.Iterable<=>java.util.Collectionscala.collection.Iterator<=>java.util.Enumerationscala.collection.mutable.Map<=>java.util.DictionaryIn addition, the following one way conversions are provided via
asJava:scala.collection.Seq =>java.util.List }scala.collection.mutable.Seq =>java.util.Listscala.collection.Set=>java.util.Setscala.collection.Map=>java.util.Map