Edge class abstract

Abstract base class for edges in the graph database.

An edge represents a connection between two nodes in the graph. All edges must have a source node (from), a target node (to), and a weight value. Implement this class to create custom edge types for your graph database.

Example:

class FriendshipEdge extends Edge {
  @override
  final String from;

  @override
  final String to;

  @override
  final double weight;

  FriendshipEdge({
    required this.from,
    required this.to,
    this.weight = 1.0,
  });

  @override
  Map<String, dynamic> toJson() {
    return {
      'from': from,
      'to': to,
      'weight': weight,
    };
  }
}

Constructors

Edge()

Properties

from → String

The ID of the source node this edge originates from.

no setter

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

to → String

The ID of the target node this edge points to.

no setter

weight → double

The weight of this edge, typically used for graph algorithms.

no setter

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

Converts this edge to a JSON representation.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited