Graph module

Graph class container.

class galaxy_graph.graph.Graph(is_directed: bool = True, nodes: set[Node] = <factory>, data: T | None = None)

Set of nodes.

add(node: Node[__annotationlib_name_1__]) → Node[__annotationlib_name_2__]

Add an offline Node to this Graph.

connect(source: Node, connection: Connection[__annotationlib_name_1__], destination: Node) → Connection[__annotationlib_name_2__]

Add two node with a connection quickly.

The two created node and connection will be added to the graph. If the graph of the node is not directed, each node will have the same connection.

Parameters

source: Node

First node of the connection. If graph is directed, origin of the arrow

connection: Connection

Connection linking the first and the second node. This connection must not have been already used in another link.

destination: Node

Last node of the connection. If graph is directed, pointing of the arrow.

delete(node_id: str) → Node

Delete a node and all of its connections.

get_by_class(class_: type[Node]) → set[Node]

Get all node of a given class.

get_by_data(predicate: Callable[[__annotationlib_name_1__], __annotationlib_name_2__]) → set[Node[__annotationlib_name_3__]]

Get all node of the graph respecting a condition on its data.

Return every nodes for which applying the node’s data to filter return True.

get_by_id(node_id: str) → Node

Get a node from its node identifier.

internal_add_node(node: Node) → None

Add a node to the graph.

Internal use only.

internal_delete_node(node: Node) → None

Delete a node and all of its connections to other nodes.

Internal use only.