xgt.Vertex

class xgt.Vertex(name, schema, key)

Defines a new vertex type.

Vertex objects capture the names and datatypes of properties on vertices, and they are required in order to define a new graph.

Parameters:

name : str

Vertex type name.

schema : list of tuples

List of tuples associating property names with xGT data types.

key : list of strings

List of one or more property names that are used to uniquely identify vertices in the graph.

Examples

>>> import xgt
>>> conn = xgt.connect()
>>> conn.drop_graph('Company')
>>> ng = xgt.Graph('Company')
>>> v1 = xgt.Vertex(name   = 'Person',
...                 schema = [('id', xgt.INT),
...                           ('name', xgt.TEXT)],
...                 key    = ['id'])
>>> ng.add(v1)
>>> ...
>>> conn.create(ng)

Attributes:

key

list: List of property names that identify a single vertex.

name

str: Name of the vertex type.

schema

list of tuples: List of name-type pairs.

__init__(name, schema, key)

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(name, schema, key)

Initialize self.

Attributes

key	list: List of property names that identify a single vertex.
name	str: Name of the vertex type.
schema	list of tuples: List of name-type pairs.

key

list: List of property names that identify a single vertex.

name

str: Name of the vertex type.

schema

list of tuples: List of name-type pairs.