Object scala.collection.convert.Wrappers
object Wrappers extends Wrappers with Serializable
- Annotations
- @SerialVersionUID()
- Source
- Wrappers.scala
Type Members
class ConcurrentMapWrapper[A, B] extends MutableMapWrapper[A, B] with ConcurrentMap[A, B]
- Definition Classes
- Wrappers
case class DictionaryWrapper[A, B] extends Dictionary[A, B] with Product with Serializable
- Definition Classes
- Wrappers
case class IterableWrapper[A] extends AbstractCollection[A] with IterableWrapperTrait[A] with Product with Serializable
- Definition Classes
- Wrappers
trait IterableWrapperTrait[A] extends AbstractCollection[A]
- Definition Classes
- Wrappers
case class IteratorWrapper[A] extends java.util.Iterator[A] with java.util.Enumeration[A] with Product with Serializable
- Definition Classes
- Wrappers
case class JCollectionWrapper[A] extends AbstractIterable[A] with Iterable[A] with Product with Serializable
- Definition Classes
- Wrappers
case class JConcurrentMapWrapper[A, B] extends mutable.AbstractMap[A, B] with JMapWrapperLike[A, B, JConcurrentMapWrapper[A, B]] with concurrent.Map[A, B] with Product with Serializable
Wraps a concurrent Java map as a Scala one. Single-element concurrent access is supported; multi-element operations such as maps and filters are not guaranteed to be atomic.
- Definition Classes
- Wrappers
case class JDictionaryWrapper[A, B] extends mutable.AbstractMap[A, B] with mutable.Map[A, B] with Product with Serializable
- Definition Classes
- Wrappers
case class JEnumerationWrapper[A] extends AbstractIterator[A] with Iterator[A] with Product with Serializable
- Definition Classes
- Wrappers
case class JIterableWrapper[A] extends AbstractIterable[A] with Iterable[A] with Product with Serializable
- Definition Classes
- Wrappers
case class JIteratorWrapper[A] extends AbstractIterator[A] with Iterator[A] with Product with Serializable
- Definition Classes
- Wrappers
case class JListWrapper[A] extends AbstractBuffer[A] with Buffer[A] with Product with Serializable
- Definition Classes
- Wrappers
case class JMapWrapper[A, B] extends mutable.AbstractMap[A, B] with JMapWrapperLike[A, B, JMapWrapper[A, B]] with Product with Serializable
Wraps a Java map as a Scala one. If the map is to support concurrent access, use JConcurrentMapWrapper instead. If the wrapped map is synchronized (e.g. from java.util.Collections.synchronizedMap
), it is your responsibility to wrap all non-atomic operations with underlying.synchronized
. This includes get
, as java.util.Map
's API does not allow for an atomic get
when null
values may be present.
- Definition Classes
- Wrappers
trait JMapWrapperLike[A, B, +Repr <: mutable.MapLike[A, B, Repr] with mutable.Map[A, B]] extends mutable.Map[A, B] with mutable.MapLike[A, B, Repr]
- Definition Classes
- Wrappers
case class JPropertiesWrapper extends mutable.AbstractMap[String, String] with mutable.Map[String, String] with mutable.MapLike[String, String, JPropertiesWrapper] with Product with Serializable
- Definition Classes
- Wrappers
case class JSetWrapper[A] extends mutable.AbstractSet[A] with mutable.Set[A] with mutable.SetLike[A, JSetWrapper[A]] with Product with Serializable
- Definition Classes
- Wrappers
class MapWrapper[A, B] extends java.util.AbstractMap[A, B] with Serializable
- Definition Classes
- Wrappers
- Annotations
- @SerialVersionUID()
case class MutableBufferWrapper[A] extends AbstractList[A] with IterableWrapperTrait[A] with Product with Serializable
- Definition Classes
- Wrappers
case class MutableMapWrapper[A, B] extends MapWrapper[A, B] with Product with Serializable
- Definition Classes
- Wrappers
case class MutableSeqWrapper[A] extends AbstractList[A] with IterableWrapperTrait[A] with Product with Serializable
- Definition Classes
- Wrappers
case class MutableSetWrapper[A] extends SetWrapper[A] with Product with Serializable
- Definition Classes
- Wrappers
case class SeqWrapper[A] extends AbstractList[A] with IterableWrapperTrait[A] with Product with Serializable
- Definition Classes
- Wrappers
class SetWrapper[A] extends java.util.AbstractSet[A] with Serializable
- Definition Classes
- Wrappers
- Annotations
- @SerialVersionUID()
class ToIteratorWrapper[A] extends AnyRef
- Definition Classes
- Wrappers
Value Members
final def !=(arg0: Any): Boolean
Test two objects for inequality.
- returns
true
if !(this == that), false otherwise.
- Definition Classes
- AnyRef → Any
final def ##(): Int
Equivalent to x.hashCode
except for boxed numeric types and null
. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null
returns a hashcode where null.hashCode
throws a NullPointerException
.
- returns
a hash value consistent with ==
- Definition Classes
- AnyRef → Any
final def ==(arg0: Any): Boolean
The expression x == that
is equivalent to if (x eq null) that eq null else x.equals(that)
.
- returns
true
if the receiver object is equivalent to the argument;false
otherwise.
- Definition Classes
- AnyRef → Any
final def asInstanceOf[T0]: T0
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 type.
- returns
the receiver object.
- Definition Classes
- Any
- Exceptions thrown
ClassCastException
if the receiver object is not an instance of the erasure of typeT0
.
def clone(): AnyRef
Create a copy of the receiver object.
The default implementation of the clone
method is platform dependent.
- returns
a copy of the receiver object.
final def eq(arg0: AnyRef): Boolean
Tests whether the argument (that
) is a reference to the receiver object (this
).
The eq
method implements an equivalence relation on non-null instances of AnyRef
, and has three additional 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
).
- returns
true
if the argument is a reference to the receiver object;false
otherwise.
- Definition Classes
- AnyRef
def equals(arg0: Any): Boolean
The equality method for reference types. Default implementation delegates to eq
.
See also equals
in scala.Any.
- returns
true
if the receiver object is equivalent to the argument;false
otherwise.
- Definition Classes
- AnyRef → Any
def finalize(): Unit
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize
method is invoked, as well as the interaction between finalize
and non-local returns and exceptions, are all platform dependent.
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
- Note
not specified by SLS as a member of AnyRef
final def getClass(): Class[_]
Returns the runtime class representation of the object.
- returns
a class object corresponding to the runtime type of the receiver.
def hashCode(): Int
The hashCode method for reference types. See hashCode in scala.Any.
- returns
the hash code value for this object.
final def isInstanceOf[T0]: Boolean
Test whether the dynamic type of the receiver object is T0
.
Note that the 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 specified type.
- returns
true
if the receiver object is an instance of erasure of typeT0
;false
otherwise.
- Definition Classes
- Any
final def ne(arg0: AnyRef): Boolean
Equivalent to !(this eq that)
.
- returns
true
if the argument is not a reference to the receiver object;false
otherwise.
- Definition Classes
- AnyRef
final def notify(): Unit
Wakes up a single thread that is waiting on the receiver object's monitor.
- Definition Classes
- AnyRef
- Annotations
- @native()
- Note
not specified by SLS as a member of AnyRef
final def notifyAll(): Unit
Wakes up all threads that are waiting on the receiver object's monitor.
- Definition Classes
- AnyRef
- Annotations
- @native()
- Note
not specified by SLS as a member of AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
def toString(): String
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
- returns
a String representation of the object.
- Definition Classes
- AnyRef → Any
final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
final def wait(arg0: Long): Unit
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.12.9/scala/collection/convert/Wrappers$.html