Scaladoc for scala.Either.LeftProjection

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Equals
AnyRef
Any

Visibility

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Instance constructors

new LeftProjection(e: Either[A, B])

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: LeftProjection → 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
definition classes: AnyRef
val e: Either[A, B]
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: LeftProjection → Equals → AnyRef → Any
def exists(f: (A) ⇒ Boolean): Boolean

Returns false if Right or returns the result of the application of the given function to the Left value.

Returns false if Right or returns the result of the application of the given function to the Left value.
def filter[Y](p: (A) ⇒ Boolean): Option[Either[A, Y]]

Returns None if this is a Right or if the given predicatep does not hold for the left value, otherwise, returns a Left.

Returns None if this is a Right or if the given predicatep does not hold for the left value, otherwise, returns a Left.
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
definition classes: AnyRef
def flatMap[BB >: B, X](f: (A) ⇒ Either[X, BB]): Either[X, BB]

Binds the given function across Left.

Binds the given function across Left.
def forall(f: (A) ⇒ Boolean): Boolean

Returns true if Right or returns the result of the application of the given function to the Left value.

Returns true if Right or returns the result of the application of the given function to the Left value.
def foreach[U](f: (A) ⇒ U): Any

Executes the given side-effect if this is a Left.

Executes the given side-effect if this is a Left.
def get: A

Returns the value from this Left or throws Predef.
Returns the value from this Left or throws Predef.NoSuchElementExceptionif this is a Right.
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[AA >: A](or: ⇒ AA): AA Returns the value from this Left or the given argument if this is aRight. Returns the value from this Left or the given argument if this is aRight.
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: LeftProjection → AnyRef → 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
def map[X](f: (A) ⇒ X): Product with Either[X, B] Maps the function argument through Left. Maps the function argument through Left.
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 productArity: Int return k for a product A(x_1,. return k for a product A(x_1,...,x_k) definition classes: LeftProjection → Product
def productElement(arg0: Int): Any For a product A(x_1,. 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: LeftProjection → Product
def productElements: Iterator[Any] definition classes: Product deprecated: 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: LeftProjection → Product
def synchronized[T0](arg0: T0): T0 attributes: final definition classes: AnyRef
def toOption: Option[A] Returns a Some containing the Left value if it exists or aNone if this is a Right. Returns a Some containing the Left value if it exists or aNone if this is a Right.
def toSeq: Seq[A] Returns a Seq containing the Left value if it exists or an emptySeq if this is a Right. Returns a Seq containing the Left value if it exists or an emptySeq if this is a Right.
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: LeftProjection → 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

LeftProjection

class LeftProjection[+A, +B](e: Either[A, B]) extends Product

Instance constructors

new LeftProjection(e: Either[A, B])

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

val e: Either[A, B]

def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def exists(f: (A) ⇒ Boolean): Boolean

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

def finalize(): Unit

def flatMap[BB >: B, X](f: (A) ⇒ Either[X, BB]): Either[X, BB]

def forall(f: (A) ⇒ Boolean): Boolean

def foreach[U](f: (A) ⇒ U): Any

def get: A

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

def getOrElse[AA >: A](or: ⇒ AA): AA

def hashCode(): Int

def isInstanceOf[T0]: Boolean

def map[X](f: (A) ⇒ X): Product with Either[X, B]

def ne(arg0: AnyRef): Boolean

def notify(): Unit

def notifyAll(): Unit

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 toOption: Option[A]

def toSeq: Seq[A]

def toString(): String

def wait(): Unit

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

def wait(arg0: Long): Unit