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() {
  // 使用map方法将每个DBInfo对象转换为字符串，然后使用join方法将它们连接起来
  return 'KeyspaceInfo{databases: ${databases.map((db) => db.toString()).join(', ')}}';
}