toString method

@override String toString()

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 StringBuffer buffer = StringBuffer("InvalidCommandChannelException");

  if (message != null) {
    buffer.write(": $message");
  }

  if (commandChannel != null) {
    buffer.write("\n"
        "\tThe command's channel value is $commandChannel");
  }

  if (queueChannel != null) {
    buffer.write("\n"
        "\tThe command was added to the queue in channel $queueChannel");
  }

  return buffer.toString();
}