toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse
function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString
to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
var total = _entities.values.map((e) => e.length).sum;
var s = 'JsonEntityCacheSimple#$id[$total]';
return total == 0
? s
: '$s${_entities.map((key, value) => MapEntry(key, value.length))}';
}