A projection of element 1 of this Product.
A projection of element 1.
A projection of element 10 of this Product.
A projection of element 10.
A projection of element 11 of this Product.
A projection of element 11.
A projection of element 12 of this Product.
A projection of element 12.
A projection of element 13 of this Product.
A projection of element 13.
A projection of element 14 of this Product.
A projection of element 14.
A projection of element 15 of this Product.
A projection of element 15.
A projection of element 16 of this Product.
A projection of element 16.
A projection of element 17 of this Product.
A projection of element 17.
A projection of element 18 of this Product.
A projection of element 18.
A projection of element 19 of this Product.
A projection of element 19.
A projection of element 2 of this Product.
A projection of element 2.
A projection of element 20 of this Product.
A projection of element 20.
A projection of element 3 of this Product.
A projection of element 3.
A projection of element 4 of this Product.
A projection of element 4.
A projection of element 5 of this Product.
A projection of element 5.
A projection of element 6 of this Product.
A projection of element 6.
A projection of element 7 of this Product.
A projection of element 7.
A projection of element 8 of this Product.
A projection of element 8.
A projection of element 9 of this Product.
A projection of element 9.
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.
the value being probed for possible equality
true if this instance can possibly equal that
, otherwise false
Returns the runtime class representation of the object.
a class object corresponding to the runtime type of the receiver.
Test two objects for inequality.
true
if !(this == that), false otherwise.
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
.
a hash value consistent with ==
Test two objects for equality. The expression x == that
is equivalent to if (x eq null) that eq null else x.equals(that)
.
true
if the receiver object is equivalent to the argument; false
otherwise.
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.
the receiver object.
ClassCastException
if the receiver object is not an instance of the erasure of type T0
.
Compares the receiver object (this
) with the argument object (that
) for equivalence.
Any implementation of this method should be an equivalence relation:
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 Any
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 usually necessary to override hashCode
to ensure that objects which are "equal" (o1.equals(o2)
returns true
) hash to the same scala.Int. (o1.hashCode.equals(o2.hashCode)
).
true
if the receiver object is equivalent to the argument; false
otherwise.
Returns string formatted according to given format
string. Format strings are as for String.format
(@see java.lang.String.format).
Calculate 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.
the hash code value for this object.
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.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Returns the n-th projection of this product if 0 <= n < productArity, otherwise throws an IndexOutOfBoundsException
.
number of the projection to be returned
same as ._(n+1)
, for example productElement(0)
is the same as ._1
.
An iterator over all the elements of this product.
in the default implementation, an Iterator[Any]
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.
in the default implementation, the empty string
Returns a string representation of the object.
The default representation is platform dependent.
a string representation of the object.
© 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/Product20.html
Product20 is a Cartesian product of 20 components.
2.3