toString method Null safety

  1. @override
String toString()
override

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() {
  final buf = StringBuffer();
  buf.writeln("Entity: $tableName");

  buf.writeln("Attributes:");
  attributes.forEach((name, attr) {
    buf.writeln("\t$attr");
  });

  buf.writeln("Relationships:");
  relationships!.forEach((name, rel) {
    buf.writeln("\t$rel");
  });

  return buf.toString();
}