andimiller / hedgehogs 0.4.3

MIT License GitHub

A purely functional graph library with support for cyclic graphs and weights

Scala versions: 3.x 2.13

Scala.js versions: 1.x

hedgehogs

A generic Graph library for Scala.

Scala Versions: 2.13, 3 Scala Targets: JVM, JS

Core

`SimpleGraph[Id]`

Models a graph with directed edges
inbound and outbound methods for any node

`DataGraph[Id, NodeData, EdgeData]`

Models a graph with directed edges, and can hold data in the nodes and edges
inbound and outbound methods for any node

`Dijkstra`

Supports routefinding across any SimpleGraph or DataGraph
Supports finding multiple routes at once with multi variant

`Dag`

validate - check if any SimpleGraph or DataGraph is a Directed Acyclic Graph, flags any nodes with cycles
isDag - checks if a graph is a DAG, returns a Boolean

`Connectivity`

countDisconnectedSubgraphs - checks how many disconnected subgraphs are in a graph

Mermaid

`flowchart`

Can render any DataGraph which is a DAG into a mermaid graph

Dag Visitor

`DagVisitor[F[_], Id, InputNodeData, OutputNodeData, EdgeData]`

Interface which can be implemented to describe how to run a DataGraph

`DagVisitor.runConcurrent`

Runs a DagVisitor against a compatible DataGraph
Runs concurrently, starts nodes as soon as they can be run
Can run different RunModes, indicating the direction edges run
- Flow will make A->B run A then B, this is the default
- Dependency will make A->B run B then A