class LeftProjection in scala.Either

def get : A

Returns the value from this Left or throws Predef.NoSuchElementException if this is a Right.

Throws: Predef.NoSuchElementException - if the option is empty.

def foreach(f : (A) => Unit) : Unit

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

Parameters: e - The side-effect to execute.

def getOrElse[AA >: A](or : => AA) : AA

Returns the value from this Left or the given argument if this is a Right.

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.

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.

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

Binds the given function across Left.

Parameters: The - function to bind across Left.

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

Maps the function argument through Left.

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

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

def toSeq : Seq[A]

Returns a Seq containing the Left value if it exists or an empty Seq if this is a Right.

def toOption : Option[A]

Returns a Some containing the Left value if it exists or a None if this is a Right.

override def hashCode : Int

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.

override def toString : java.lang.String

Returns a string representation of the object.

The default representation is platform dependent.

Returns: a string representation of the object.

override def equals(arg0 : Any) : Boolean

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 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)).

Parameters: arg0 - the object to compare against this object for equality.
Returns: true if the receiver object is equivalent to the argument; false otherwise.

override def productPrefix : java.lang.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.

Overrides: Product.productPrefix

override def productArity : Int

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

Overrides: Product.productArity

override def productElement(arg0 : Int) : Any

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

Parameters: n - the index of the element to return
Throws: IndexOutOfBoundsException -
Returns: The element n elements after the first element

Overrides: Product.productElement

Method Summary
`override def`	equals (arg0 : Any) : Boolean This method is used to compare the receiver object (`this`) with the argument object (`arg0`) for equivalence.
`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.
`def`	filter [Y](p : (A) => Boolean) : Option[Either[A, Y]] Returns `None` if this is a `Right` or if the given predicate `p` does not hold for the left value, otherwise, returns a `Left`.
`def`	flatMap [BB >: B, X](f : (A) => Either[X, BB]) : Either[X, BB] 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.
`def`	foreach (f : (A) => Unit) : Unit Executes the given side-effect if this is a `Left`.
`def`	get : A Returns the value from this `Left` or throws `Predef.NoSuchElementException` if this is a `Right`.
`def`	getOrElse [AA >: A](or : => AA) : AA Returns the value from this `Left` or the given argument if this is a `Right`.
`override def`	hashCode : Int Returns a hash code value for the object.
`def`	map [X](f : (A) => X) : Either[X, B] `with` Product Maps the function argument through `Left`.
`override def`	productArity : Int return k for a product `A(x_1,...,x_k)`
`override def`	productElement (arg0 : Int) : Any for a product `A(x_1,...,x_k)`, returns `x_(n+1)` for `0 <= n < k`
`override def`	productPrefix : java.lang.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.
`def`	toOption : Option[A] Returns a `Some` containing the `Left` value if it exists or a `None` if this is a `Right`.
`def`	toSeq : Seq[A] Returns a `Seq` containing the `Left` value if it exists or an empty `Seq` if this is a `Right`.
`override def`	toString : java.lang.String Returns a string representation of the object.

Methods inherited from AnyRef
getClass, clone, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized

Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf

	Scala Library

	Scala Library