Graph¶

Abstract base class for client-specific implementations.

class bulbs.base.graph.Graph(config=None)[source]¶

Abstract base class for the server-specific Graph implementations.

Parameters:	config (Config) – Optional Config object. Defaults to the default config.
Variables:	client_class – Client class. default_index – Default index class. client – Client object. config – Config object. vertices – VertexProxy object. edges – EdgeProxy object.

Example:

>>> from bulbs.neo4jserver import Graph
>>> g = Graph()
>>> james = g.vertices.create(name="James")
>>> julie = g.vertices.create(name="Julie")
>>> g.edges.create(james, "knows", julie)

client_class¶

alias of Client

default_index¶

alias of Index

V[source]¶

Returns a list of all the vertices in the graph.

Return type:	list or None

E[source]¶

Returns a list of all the edges in the graph.

Return type:	list or None

add_proxy(proxy_name, element_class, index_class=None)[source]¶

Adds an element proxy to the Graph object for the element class.

Parameters:	proxy_name (str) – Attribute name to use for the proxy. element_class (Element) – Element class managed by this proxy. index_class (Index) – Index class for Element’s primary index. Defaults to default_index.
Return type:	None

build_proxy(element_class, index_class=None)[source]¶

Returns an element proxy built to specifications.

Parameters:	element_class (Element) – Element class managed by this proxy. index_class (Index) – Optional Index class for Element’s primary index. Defaults to default_index.
Return type:	Element proxy

load_graphml(uri)[source]¶

Loads a GraphML file into the database and returns the response.

Parameters:	uri (str) – URI of the GraphML file.
Return type:	Response

get_graphml()[source]¶

Returns a GraphML file representing the entire database.

Return type:	Response

warm_cache()[source]¶

Warms the server cache by loading elements into memory.

Return type:	Response

clear()[source]¶

Deletes all the elements in the graph.

Return type:	Response

WARNING

This will delete all your data!