scala.Some

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Instance constructors

new Some (x: A)

Type Members

class WithFilter extends AnyRef

We need a whole WithFilter class to honor the "doesn't create a new collection" contract even though it seems unlikely to matter much in a collection with max size 1.

Value Members

def != (arg0: AnyRef) : Boolean

attributes: final
definition classes: AnyRef
def != (arg0: Any) : Boolean

o != arg0 is the same as !(o == (arg0)).

o != arg0 is the same as !(o == (arg0)).
arg0
the object to compare against this object for dis-equality.
returns
false if the receiver object is equivalent to the argument; true otherwise.
attributes: final
definition classes: Any
def ## () : Int

attributes: final
definition classes: AnyRef → Any
def $asInstanceOf [T0] () : T0

attributes: final
definition classes: AnyRef
def $isInstanceOf [T0] () : Boolean

attributes: final
definition classes: AnyRef
def == (arg0: AnyRef) : Boolean

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).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: AnyRef
def == (arg0: Any) : Boolean

o == arg0 is the same as o.equals(arg0).

o == arg0 is the same as o.equals(arg0).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: Any
def asInstanceOf [T0] : T0

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 expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(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.
returns
the receiver object.
attributes: final
definition classes: Any
def canEqual (arg0: Any) : Boolean

A method that should be called from every well-designed equals method that is open to be overridden in a subclass.

A method that should be called from every well-designed equals method that is open to be overridden in a subclass. See Programming in Scala, Chapter 28 for discussion and design.
definition classes: Some → Equals
def clone () : AnyRef

This method creates and returns a copy of the receiver object.

This method creates and returns a copy of the receiver object.
The default implementation of the clone method is platform dependent.
returns
a copy of the receiver object.
attributes: protected[lang]
definition classes: AnyRef
def collect [B] (pf: PartialFunction[A, B]) : Option[B]

Returns a Some containing the result of applying pf to this Option's contained value, if this option is nonempty and pf is defined for that value.

Returns a Some containing the result of applying pf to this Option's contained value, if this option is nonempty and pf is defined for that value. Returns None otherwise.
pf
the partial function.
returns
the result of applying pf to this Option's value (if possible), or None.
definition classes: Option
def eq (arg0: AnyRef) : Boolean

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).
arg0
the object to compare against this object for reference equality.
returns
true if the argument is a reference to the receiver object; false otherwise.
attributes: final
definition classes: AnyRef
def equals (arg0: Any) : Boolean

The equality method defined in AnyRef.

The equality method defined in AnyRef.@return true if the receiver object is equivalent to the argument; false otherwise. */
definition classes: Some → Equals → AnyRef → Any
def exists (p: (A) ⇒ Boolean) : Boolean

Returns true if this option is nonempty and the predicatep returns true when applied to this Option's value.

Returns true if this option is nonempty and the predicatep returns true when applied to this Option's value. Otherwise, returns false.
p
the predicate to test
definition classes: Option
def filter (p: (A) ⇒ Boolean) : Option[A]

Returns this Option if it is nonempty and applying the predicate p to this Option's value returns true.

Returns this Option if it is nonempty and applying the predicate p to this Option's value returns true. Otherwise, return None.
p
the predicate used for testing.
definition classes: Option
def finalize () : Unit

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 finalizeand non-local returns and exceptions, are all platform dependent.
attributes: protected[lang]
definition classes: AnyRef
def flatMap [B] (f: (A) ⇒ Option[B]) : Option[B]

Returns the result of applying f to this Option's value if this Option is nonempty.
Returns the result of applying f to this Option's value if this Option is nonempty. Returns None if this Option is empty. Slightly different from map in that f is expected to return an Option (which could be None).
f
the function to apply
definition classes: Option
1. foreach
2. map
def foreach [U] (f: (A) ⇒ U) : Unit

Apply the given procedure f to the option's value, if it is nonempty.
Apply the given procedure f to the option's value, if it is nonempty. Otherwise, do nothing.
f
the procedure to apply.
definition classes: Option
1. flatMap
2. map
def get : A

Returns the option's value.

Returns the option's value.
definition classes: Some → Option
def getClass () : java.lang.Class[_ <: java.lang.Object]

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.
returns
a representation that corresponds to the dynamic class of the receiver object.
attributes: final
definition classes: AnyRef
def getOrElse [B >: A] (default: ⇒ B) : B

Returns the option's value if the option is nonempty, otherwise return the result of evaluating default.

Returns the option's value if the option is nonempty, otherwise return the result of evaluating default.
default
the default expression.
definition classes: Option
def hashCode () : Int

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.
returns
the hash code value for the object.
definition classes: Some → AnyRef → Any
def isDefined : Boolean

Returns true if the option is an instance of Some, false otherwise.

Returns true if the option is an instance of Some, false otherwise.
definition classes: Option
def isEmpty : Boolean

Returns true if the option is None, false otherwise.

Returns true if the option is None, false otherwise.
definition classes: Some → Option
def isInstanceOf [T0] : Boolean

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 expression1.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.
returns
true if the receiver object is an instance of erasure of type T0; false otherwise.
attributes: final
definition classes: Any
def iterator : Iterator[A]

Returns a singleton iterator returning the Option's value if it is nonempty, or an empty iterator if the option is empty.

Returns a singleton iterator returning the Option's value if it is nonempty, or an empty iterator if the option is empty.
definition classes: Option
def map [B] (f: (A) ⇒ B) : Option[B]

Returns a Some containing the result of applying f to this Option's value if this Option is nonempty.
Returns a Some containing the result of applying f to this Option's value if this Option is nonempty. Otherwise return None.
f
the function to apply
definition classes: Option
1. foreach
2. flatMap
def ne (arg0: AnyRef) : Boolean

o.ne(arg0) is the same as !(o.eq(arg0)).

o.ne(arg0) is the same as !(o.eq(arg0)).
arg0
the object to compare against this object for reference dis-equality.
returns
false if the argument is not a reference to the receiver object; true otherwise.
attributes: final
definition classes: AnyRef
def notify () : Unit

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.
attributes: final
definition classes: AnyRef
def notifyAll () : Unit

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.
attributes: final
definition classes: AnyRef
def orElse [B >: A] (alternative: ⇒ Option[B]) : Option[B]

Returns this Option if it is nonempty, otherwise return the result of evaluating alternative.

Returns this Option if it is nonempty, otherwise return the result of evaluating alternative.
alternative
the alternative expression.
definition classes: Option
def orNull [A1 >: A] (implicit ev: <:<[Null, A1]) : A1

Returns the option's value if it is nonempty, or null if it is empty.
Returns the option's value if it is nonempty, or null if it is empty. Although the use of null is discouraged, code written to useOption must often interface with code that expects and returns nulls.
definition classes: Option
def productArity : Int

return k for a product A(x_1,...,x_k)

return k for a product A(x_1,...,x_k)
definition classes: Some → Product
def productElement (arg0: Int) : Any

For a product A(x_1,...,x_k), returns x_(n+1) for 0 <= n < k

For a product A(x_1,...,x_k), returns x_(n+1) for 0 <= n < k
returns
The element n elements after the first element
definition classes: Some → Product
def productElements : Iterator[Any]
definition classes: Product
1. use productIterator instead
def productIterator : Iterator[Any]

An iterator that returns all fields of this product

An iterator that returns all fields of this product
definition classes: Product
def productPrefix : String

By default the empty string.

By default the empty string. Implementations may override this method in order to prepend a string prefix to the result of the toString methods.
definition classes: Some → Product
def synchronized [T0] (arg0: T0) : T0

attributes: final
definition classes: AnyRef
def toLeft [X] (right: ⇒ X) : Product with Either[A, X]

Returns a Right containing the given argument right if this is empty, or a Left containing this Option's value if this Option is nonempty.
Returns a Right containing the given argument right if this is empty, or a Left containing this Option's value if this Option is nonempty.
right
the expression to evaluate and return if this is empty
definition classes: Option
1. toRight
def toList : List[A]

Returns a singleton list containing the Option's value if it is nonempty, or the empty list if the Option is empty.

Returns a singleton list containing the Option's value if it is nonempty, or the empty list if the Option is empty.
definition classes: Option
def toRight [X] (left: ⇒ X) : Product with Either[X, A]

Returns a Left containing the given argument left if this Option is empty, or a Right containing this Option's value if this is nonempty.
Returns a Left containing the given argument left if this Option is empty, or a Right containing this Option's value if this is nonempty.
left
the expression to evaluate and return if this is empty
definition classes: Option
1. toLeft
def toString () : String

Returns a string representation of the object.

Returns a string representation of the object.
The default representation is platform dependent.
returns
a string representation of the object.
definition classes: Some → AnyRef → Any
def wait () : Unit

attributes: final
definition classes: AnyRef
def wait (arg0: Long, arg1: Int) : Unit

attributes: final
definition classes: AnyRef
def wait (arg0: Long) : Unit

attributes: final
definition classes: AnyRef
def withFilter (p: (A) ⇒ Boolean) : WithFilter

Necessary to keep Option from being implicitly converted to Iterable in for comprehensions.

Necessary to keep Option from being implicitly converted to Iterable in for comprehensions.
definition classes: Option
val x : A

Inherited from Option[A]

Value Members

def collect [B] (pf: PartialFunction[A, B]) : Option[B]

Returns a Some containing the result of applying pf to this Option's contained value, if this option is nonempty and pf is defined for that value.

Returns a Some containing the result of applying pf to this Option's contained value, if this option is nonempty and pf is defined for that value. Returns None otherwise.
pf
the partial function.
returns
the result of applying pf to this Option's value (if possible), or None.
definition classes: Option
def exists (p: (A) ⇒ Boolean) : Boolean

Returns true if this option is nonempty and the predicatep returns true when applied to this Option's value.

Returns true if this option is nonempty and the predicatep returns true when applied to this Option's value. Otherwise, returns false.
p
the predicate to test
definition classes: Option
def filter (p: (A) ⇒ Boolean) : Option[A]

Returns this Option if it is nonempty and applying the predicate p to this Option's value returns true.

Returns this Option if it is nonempty and applying the predicate p to this Option's value returns true. Otherwise, return None.
p
the predicate used for testing.
definition classes: Option
def flatMap [B] (f: (A) ⇒ Option[B]) : Option[B]

Returns the result of applying f to this Option's value if this Option is nonempty.
Returns the result of applying f to this Option's value if this Option is nonempty. Returns None if this Option is empty. Slightly different from map in that f is expected to return an Option (which could be None).
f
the function to apply
definition classes: Option
1. foreach
2. map
def foreach [U] (f: (A) ⇒ U) : Unit

Apply the given procedure f to the option's value, if it is nonempty.
Apply the given procedure f to the option's value, if it is nonempty. Otherwise, do nothing.
f
the procedure to apply.
definition classes: Option
1. flatMap
2. map
def getOrElse [B >: A] (default: ⇒ B) : B

Returns the option's value if the option is nonempty, otherwise return the result of evaluating default.

Returns the option's value if the option is nonempty, otherwise return the result of evaluating default.
default
the default expression.
definition classes: Option
def isDefined : Boolean

Returns true if the option is an instance of Some, false otherwise.

Returns true if the option is an instance of Some, false otherwise.
definition classes: Option
def iterator : Iterator[A]

Returns a singleton iterator returning the Option's value if it is nonempty, or an empty iterator if the option is empty.

Returns a singleton iterator returning the Option's value if it is nonempty, or an empty iterator if the option is empty.
definition classes: Option
def map [B] (f: (A) ⇒ B) : Option[B]

Returns a Some containing the result of applying f to this Option's value if this Option is nonempty.
Returns a Some containing the result of applying f to this Option's value if this Option is nonempty. Otherwise return None.
f
the function to apply
definition classes: Option
1. foreach
2. flatMap
def orElse [B >: A] (alternative: ⇒ Option[B]) : Option[B]

Returns this Option if it is nonempty, otherwise return the result of evaluating alternative.

Returns this Option if it is nonempty, otherwise return the result of evaluating alternative.
alternative
the alternative expression.
definition classes: Option
def orNull [A1 >: A] (implicit ev: <:<[Null, A1]) : A1

Returns the option's value if it is nonempty, or null if it is empty.
Returns the option's value if it is nonempty, or null if it is empty. Although the use of null is discouraged, code written to useOption must often interface with code that expects and returns nulls.
definition classes: Option
def toLeft [X] (right: ⇒ X) : Product with Either[A, X]

Returns a Right containing the given argument right if this is empty, or a Left containing this Option's value if this Option is nonempty.
Returns a Right containing the given argument right if this is empty, or a Left containing this Option's value if this Option is nonempty.
right
the expression to evaluate and return if this is empty
definition classes: Option
1. toRight
def toList : List[A]

Returns a singleton list containing the Option's value if it is nonempty, or the empty list if the Option is empty.

Returns a singleton list containing the Option's value if it is nonempty, or the empty list if the Option is empty.
definition classes: Option
def toRight [X] (left: ⇒ X) : Product with Either[X, A]

Returns a Left containing the given argument left if this Option is empty, or a Right containing this Option's value if this is nonempty.
Returns a Left containing the given argument left if this Option is empty, or a Right containing this Option's value if this is nonempty.
left
the expression to evaluate and return if this is empty
definition classes: Option
1. toLeft
def withFilter (p: (A) ⇒ Boolean) : WithFilter

Necessary to keep Option from being implicitly converted to Iterable in for comprehensions.

Necessary to keep Option from being implicitly converted to Iterable in for comprehensions.
definition classes: Option

Inherited from AnyRef

Value Members

def != (arg0: AnyRef) : Boolean

attributes: final
definition classes: AnyRef
def ## () : Int

attributes: final
definition classes: AnyRef → Any
def $asInstanceOf [T0] () : T0

attributes: final
definition classes: AnyRef
def $isInstanceOf [T0] () : Boolean

attributes: final
definition classes: AnyRef
def == (arg0: AnyRef) : Boolean

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).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: AnyRef
def clone () : AnyRef

This method creates and returns a copy of the receiver object.

This method creates and returns a copy of the receiver object.
The default implementation of the clone method is platform dependent.
returns
a copy of the receiver object.
attributes: protected[lang]
definition classes: AnyRef
def eq (arg0: AnyRef) : Boolean

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).
arg0
the object to compare against this object for reference equality.
returns
true if the argument is a reference to the receiver object; false otherwise.
attributes: final
definition classes: AnyRef
def finalize () : Unit

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 finalizeand non-local returns and exceptions, are all platform dependent.
attributes: protected[lang]
definition classes: AnyRef
def getClass () : java.lang.Class[_ <: java.lang.Object]

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.
returns
a representation that corresponds to the dynamic class of the receiver object.
attributes: final
definition classes: AnyRef
def ne (arg0: AnyRef) : Boolean

o.ne(arg0) is the same as !(o.eq(arg0)).

o.ne(arg0) is the same as !(o.eq(arg0)).
arg0
the object to compare against this object for reference dis-equality.
returns
false if the argument is not a reference to the receiver object; true otherwise.
attributes: final
definition classes: AnyRef
def notify () : Unit

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.
attributes: final
definition classes: AnyRef
def notifyAll () : Unit

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.
attributes: final
definition classes: AnyRef
def synchronized [T0] (arg0: T0) : T0

attributes: final
definition classes: AnyRef
def wait () : Unit

attributes: final
definition classes: AnyRef
def wait (arg0: Long, arg1: Int) : Unit

attributes: final
definition classes: AnyRef
def wait (arg0: Long) : Unit

attributes: final
definition classes: AnyRef

Inherited from Any

Value Members

def != (arg0: Any) : Boolean

o != arg0 is the same as !(o == (arg0)).

o != arg0 is the same as !(o == (arg0)).
arg0
the object to compare against this object for dis-equality.
returns
false if the receiver object is equivalent to the argument; true otherwise.
attributes: final
definition classes: Any
def == (arg0: Any) : Boolean

o == arg0 is the same as o.equals(arg0).

o == arg0 is the same as o.equals(arg0).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: Any
def asInstanceOf [T0] : T0

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 expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(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.
returns
the receiver object.
attributes: final
definition classes: Any
def isInstanceOf [T0] : Boolean

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 expression1.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.
returns
true if the receiver object is an instance of erasure of type T0; false otherwise.
attributes: final
definition classes: Any

Some

case class Some [+A] (x: A) extends Option[A] with Product

Instance constructors

new Some (x: A)

Type Members

class WithFilter extends AnyRef

Value Members

def != (arg0: AnyRef) : Boolean

def != (arg0: Any) : Boolean

def ## () : Int

def $asInstanceOf [T0] () : T0

def $isInstanceOf [T0] () : Boolean

def == (arg0: AnyRef) : Boolean

def == (arg0: Any) : Boolean

def asInstanceOf [T0] : T0

def canEqual (arg0: Any) : Boolean

def clone () : AnyRef

def collect [B] (pf: PartialFunction[A, B]) : Option[B]

def eq (arg0: AnyRef) : Boolean

def equals (arg0: Any) : Boolean

def exists (p: (A) ⇒ Boolean) : Boolean

def filter (p: (A) ⇒ Boolean) : Option[A]

def finalize () : Unit

def flatMap [B] (f: (A) ⇒ Option[B]) : Option[B]

def foreach [U] (f: (A) ⇒ U) : Unit

def get : A

def getClass () : java.lang.Class[_ <: java.lang.Object]

def getOrElse [B >: A] (default: ⇒ B) : B

def hashCode () : Int

def isDefined : Boolean

def isEmpty : Boolean

def isInstanceOf [T0] : Boolean

def iterator : Iterator[A]

def map [B] (f: (A) ⇒ B) : Option[B]

def ne (arg0: AnyRef) : Boolean

def notify () : Unit

def notifyAll () : Unit

def orElse [B >: A] (alternative: ⇒ Option[B]) : Option[B]

def orNull [A1 >: A] (implicit ev: <:<[Null, A1]) : A1

def productArity : Int

def productElement (arg0: Int) : Any

def productElements : Iterator[Any]

def productIterator : Iterator[Any]

def productPrefix : String

def synchronized [T0] (arg0: T0) : T0

def toLeft [X] (right: ⇒ X) : Product with Either[A, X]

def toList : List[A]

def toRight [X] (left: ⇒ X) : Product with Either[X, A]

def toString () : String

def wait () : Unit

def wait (arg0: Long, arg1: Int) : Unit

def wait (arg0: Long) : Unit

def withFilter (p: (A) ⇒ Boolean) : WithFilter

val x : A

Inherited from Option[A]

Value Members

def collect [B] (pf: PartialFunction[A, B]) : Option[B]

def exists (p: (A) ⇒ Boolean) : Boolean

def filter (p: (A) ⇒ Boolean) : Option[A]

def flatMap [B] (f: (A) ⇒ Option[B]) : Option[B]

def foreach [U] (f: (A) ⇒ U) : Unit

def getOrElse [B >: A] (default: ⇒ B) : B

def isDefined : Boolean

def iterator : Iterator[A]

def map [B] (f: (A) ⇒ B) : Option[B]

def orElse [B >: A] (alternative: ⇒ Option[B]) : Option[B]

def orNull [A1 >: A] (implicit ev: <:<[Null, A1]) : A1

def toLeft [X] (right: ⇒ X) : Product with Either[A, X]

def toList : List[A]

def toRight [X] (left: ⇒ X) : Product with Either[X, A]

def withFilter (p: (A) ⇒ Boolean) : WithFilter

Inherited from Product

Value Members

def productElements : Iterator[Any]

def productIterator : Iterator[Any]

Inherited from AnyRef

Value Members

def != (arg0: AnyRef) : Boolean

def ## () : Int

def $asInstanceOf [T0] () : T0