Trait Product2.Product2

trait Product2[+T1, +T2] extends Product

Product2 is a Cartesian product of 2 components.

Supertypes	trait Product trait Equals class Any
Known subtypes	class (T1, T2)

Abstract methods

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def _1: T1

A projection of element 1 of this Product.

Returns	A projection of element 1.

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def _2: T2

A projection of element 2 of this Product.

Returns	A projection of element 2.

Concrete methods

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override def productArity: Int

The arity of this product.

Returns	2
Definition Classes	Product

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override def productElement(n: Int): Any

Returns the n-th projection of this product if 0 <= n < productArity, otherwise throws an IndexOutOfBoundsException.

Value parameters	n number of the projection to be returned
Returns	same as ._(n+1), for example productElement(0) is the same as ._1.
Throws	IndexOutOfBoundsException if the n is out of range(n < 0 || n >= 2).
Definition Classes	Product

Inherited methods

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def canEqual(that: Any): Boolean

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.

Value parameters	that the value being probed for possible equality
Returns	true if this instance can possibly equal that, otherwise false
Inherited from	Equals

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def productElementName(n: Int): String

The name of the nth element of this product, 0-based. In the default implementation, an empty string.

Value parameters	n the index of the element name to return
Returns	the name of the specified element
Throws	IndexOutOfBoundsException if the n is out of range(n < 0 || n >= productArity).
Inherited from	Product

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def productElementNames: Iterator[String]

An iterator over the names of all the elements of this product.

Inherited from	Product

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def productIterator: Iterator[Any]

An iterator over all the elements of this product.

Returns	in the default implementation, an Iterator[Any]
Inherited from	Product

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def productPrefix: String

A string used in the toString methods of derived classes. Implementations may override this method to prepend a string prefix to the result of toString methods.

Returns	in the default implementation, the empty string
Inherited from	Product