class Neo4jGraph(object):
"""
The primary interface to graph databases on the Rexster REST server.
Instantiates the database :class:`~bulbs.rest.Resource` object using
the specified database URL and sets up proxy objects to the database.
:keyword root_uri: The URI to Neo4j Server.
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)
>>> g.vertices.index.lookup(name="James")
"""
def __init__(self,root_uri=NEO4J_URI):
self.config = Config(root_uri)
self.resource = Neo4jResource(self.config)
self.gremlin = Gremlin(self.resource)
self.indicesV = VertexIndexProxy(ExactIndex,self.resource)
self.indicesE = EdgeIndexProxy(ExactIndex,self.resource)
# What happens if these REST calls error on Heroku?
self.vertices = VertexProxy(Vertex,self.resource)
self.vertices.index = self.indicesV.get_or_create("vertices")
self.edges = EdgeProxy(Edge,self.resource)
self.edges.index = self.indicesE.get_or_create("edges")
def load_graphml(self,uri):
"""Loads a GraphML file into the database and returns the response."""
script = self.resource.scripts.get('load_graphml')
params = dict(uri=uri)
return self.gremlin.execute(script,params)
def save_graphml(self):
"""Returns a GraphML file representing the entire database."""
script = self.resource.scripts.get('save_graphml')
results = self.gremlin.execute(script,params=None)
return results[0]
def clear(self):
"""Deletes all the elements in the graph.
.. admonition:: WARNING
g.clear() will delete all your data!
"""
return self.resource.clear()
class Neo4jGraph(object):
"""
The primary interface to graph databases on the Rexster REST server.
Instantiates the database :class:`~bulbs.rest.Resource` object using
the specified database URL and sets up proxy objects to the database.
:keyword root_uri: The URI to Neo4j Server.
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)
>>> g.vertices.index.lookup(name="James")
"""
def __init__(self, root_uri=NEO4J_URI):
self.config = Config(root_uri)
self.resource = Neo4jResource(self.config)
self.gremlin = Gremlin(self.resource)
self.indicesV = VertexIndexProxy(ExactIndex, self.resource)
self.indicesE = EdgeIndexProxy(ExactIndex, self.resource)
# What happens if these REST calls error on Heroku?
self.vertices = VertexProxy(Vertex, self.resource)
self.vertices.index = self.indicesV.get_or_create("vertices")
self.edges = EdgeProxy(Edge, self.resource)
self.edges.index = self.indicesE.get_or_create("edges")
def load_graphml(self, uri):
"""Loads a GraphML file into the database and returns the response."""
script = self.resource.scripts.get('load_graphml')
params = dict(uri=uri)
return self.gremlin.execute(script, params)
def save_graphml(self):
"""Returns a GraphML file representing the entire database."""
script = self.resource.scripts.get('save_graphml')
results = self.gremlin.execute(script, params=None)
return results[0]
def clear(self):
"""Deletes all the elements in the graph.
.. admonition:: WARNING
g.clear() will delete all your data!
"""
return self.resource.clear()
class Graph(object):
def __init__(self,root_uri=REXSTER_URI):
self.config = Config(root_uri)
self.client = RexsterClient(self.config)
self.gremlin = Gremlin(self.client)
self.indices = IndexProxy(RexsterIndex,client)
self.vertices = VertexProxy(Vertex,self.client)
self.vertices.index = self.indices.get("vertices",Vertex)
self.edges = EdgeProxy(Edge,self.client)
self.edges.index = self.indices.get("edges",Edge)
def load_graphml(self,uri):
"""Loads a GraphML file into the database and returns the response."""
script = self.client.scripts.get('load_graphml')
params = dict(uri=uri)
return self.gremlin.execute(script,params)
def save_graphml(self):
"""Returns a GraphML file representing the entire database."""
script = self.client.scripts.get('save_graphml')
results = self.gremlin.execute(script,params=None)
return results[0]
def clear(self):
"""
Deletes all the elements in the graph.
Example::
>>> g = Graph()
>>> g.clear()
.. admonition:: WARNING
g.clear() will delete all your data!
"""
return self.client.clear()
class Graph(object):
def __init__(self, root_uri=REXSTER_URI):
self.config = Config(root_uri)
self.resource = RexsterResource(self.config)
self.gremlin = Gremlin(self.resource)
self.indices = IndexProxy(RexsterIndex, resource)
self.vertices = VertexProxy(Vertex, self.resource)
self.vertices.index = self.indices.get("vertices", Vertex)
self.edges = EdgeProxy(Edge, self.resource)
self.edges.index = self.indices.get("edges", Edge)
def load_graphml(self, uri):
"""Loads a GraphML file into the database and returns the response."""
script = self.resource.scripts.get('load_graphml')
params = dict(uri=uri)
return self.gremlin.execute(script, params)
def save_graphml(self):
"""Returns a GraphML file representing the entire database."""
script = self.resource.scripts.get('save_graphml')
results = self.gremlin.execute(script, params=None)
return results[0]
def clear(self):
"""
Deletes all the elements in the graph.
Example::
>>> g = Graph()
>>> g.clear()
.. admonition:: WARNING
g.clear() will delete all your data!
"""
return self.resource.clear()