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by Jonas Partner and Aleksa Vukotic early access edition MEAP + Ebook only - $35.99 MEAP + Print book (includes Ebook) when available - $44.99 Graph Database News Readers Discount! Use code 12neo38 for 38% off the print, eBook, and MEAP! PART 1: INTRODUCTION TO NEO4J 1.
Rexster is a graph server that exposes any Blueprints graph through REST and a binary protocol called RexPro . The HTTP web service provides standard low-level GET , POST , PUT , and DELETE methods, a flexible extensions model which allows plug-in like development for external services (such as adhoc graph queries through Gremlin ), server-side “stored procedures” written in Gremlin, and a browser-based interface called The Dog House . Rexster Console makes it possible to do remote script evaluation against configured graphs inside of a Rexster Server. 1
The following cookbook aims to provide a few snippets, examples and use-cases and their query-solutions in Cypher. 16.12.1. Hyperedges and Cypher Imagine a user being part of different groups. A group can have different roles, and a user can be part of different groups.
Open-source Python library for graph databases. Bulbs Bulbs is an open-source Python library for graph databases. Bulbs supports pluggable backends and currently has bindings for Neo4j Server and Rexster . Rexster is the Blueprints server and so this means Bulbs supports any Blueprints-enabled graph database, including: Neo4j, InfiniteGraph, OrientDB, Dex, TinkerGraph, and OpenRDF Sail. import time from bulbs.neo4jserver import Graph from bulbs.model import Node , Relationship from bulbs.property import String , Integer , Float class Person ( Node ): element_type = "person" name = String ( nullable = False ) age = Integer () class Knows ( Relationship ): label = "knows" timestamp = Float ( default = "current_timestamp" , nullable = False ) def current_timestamp ( self ): return time . time ()
About a year ago I gave a presentation at Devoxx where I showed off how easy it was to use any Java library with Django in Jython. The library I demonstrated this with was of course Neo4j . I had written some code for using Neo4j to define models for Django, and now it is ready to be released for you to use it. The way that the integration between Django and Neo4j is implemented is in the Model layer.