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.
decomposes each csv line via regular expression into an arraybuffer of string cells handles several special cases e
decomposes each csv line via regular expression into an arraybuffer of string cells handles several special cases e.g. "xyz" "xy, z" and "x ""y"" z" within single cells since it works on a line by line basis
TODO could be improved but works for now TODO does not handle newlines within quoted blocks
The rather involved pattern used to match CSV's consists of three alternations: the first matches aquoted field, the second unquoted, the third a null field
The rather involved pattern used to match CSV's consists of three alternations: the first matches aquoted field, the second unquoted, the third a null field.
reads the data from a given url
reads to data from a local file
reference to the original source file (only set when loaded from the disk)
reference to the original source file (only set when loaded from the disk)
Returns a string representation of the object
Returns a string representation of the object.
The default representation is platform dependent.