GraphEvent class sealed

Base class for all graph events emitted by NodeFlowController.

Using a sealed class hierarchy enables exhaustive pattern matching:

void onEvent(GraphEvent event) {
  switch (event) {
    case NodeAdded(:final node):
      print('Node added: ${node.id}');
    case NodeRemoved(:final node):
      print('Node removed: ${node.id}');
    // ... handle all cases
  }
}

Implementers

• BatchEnded
• BatchStarted
• ConnectionAdded
• ConnectionRemoved
• NodeAdded
• NodeDataChanged
• NodeMoved
• NodeRemoved
• NodeResized
• NodeVisibilityChanged
• NodeZIndexChanged
• SelectionChanged
• ViewportChanged

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited