projection of this product
projection of this product
projection of this product
projection of this product
projection of this product
projection of this product
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.
This method is used to compare the receiver object (this
)
with the argument object (arg0
) for equivalence
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:
x
of type Any
,
x.equals(x)
should return true
.x
and y
of type
Any
, x.equals(y)
should return true
if and only
if y.equals(x)
returns true
.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)
).
the object to compare against this object for equality.
true
if the receiver object is equivalent to the argument; false
otherwise.
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.
The arity of this product
The arity of this product.
Returns the n-th projection of this product if 0<=n<arity, otherwise null
Returns the n-th projection of this product if 0<=n<arity, otherwise null.
number of the projection to be returned
same as _(n+1)
An iterator that returns all fields of this product
An iterator that returns all fields of this product
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.
Returns a string representation of the object
Returns a string representation of the object.
The default representation is platform dependent.
Product3 is a cartesian product of 3 components.