The document discusses GraphAware Framework, which makes it easy to build, test, and deploy custom APIs, transaction-driven behavior, and asynchronous computation functionality for Neo4j. It provides examples like representing time series data, tracking graph changes, assigning UUIDs, and running algorithms. GraphAware Framework is open source and supports building both generic and domain-specific Neo4j extensions.

1. GraphAware Framework
GraphAwareTM
advanced Neo4j use cases
by Michal Bachman
!
@graph_aware
@bachmanm

2. Advanced Use Cases
GraphAware Framework (implementing advanced functionality)
GraphAware Framework Modules (built by us, used by you)
GraphAwareTM
About this Talk

3. GraphAwareTM
Advanced Use Cases
Custom APIs
Transaction-Driven Behaviour
Asynchronous Computation

4. GraphAwareTM
Advanced Use Cases
Custom APIs
Transaction-Driven Behaviour
Asynchronous Computation

5. GraphAwareTM
Custom APIs - What?
a.k.a. “unmanaged extensions”
“Stored procedures” on steroids
Implemented and tested (!) in Java
Deployed with Neo4j (same lifecycle)

6. GraphAwareTM
Custom APIs - Why?
Access to native Neo4j API (Java)
Performance
Locking
Too complex for Cypher
Functions missing in Cypher
Custom input/output format
Limit to read-only
Code to Data
…

7. GraphAware Framework makes it extremely easy
to build, test, and deploy custom Neo4j APIs.
GraphAwareTM
Custom APIs (How?)

8. Custom APIs - How? (GraphAware)
GraphAwareTM
pure Spring MVC
test with GraphUnit
drop to plugins
restart Neo

9. GraphAwareTM
Custom APIs - Example
representing time in Neo4j
storing and querying time series data
GraphAware TimeTree

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11. GraphAwareTM
TimeTree Demo

12. GraphAwareTM
Interlude: GraphUnit

13. GraphAwareTM

14. GraphAwareTM

15. GraphAwareTM
Getting GraphUnit
<dependency>
<groupId>com.graphaware.neo4j</groupId>
<artifactId>tests</artifactId>
<version>2.1.5.25</version>
<scope>test</scope>
</dependency>

16. GraphAwareTM
Advanced Use Cases
Custom APIs
Transaction-Driven Behaviour
Asynchronous Computation

17. Transaction-Driven Behaviour - What?
GraphAwareTM
Neo4j is fully ACID
“Triggers” on steroids
Implemented and tested (!) in Java

18. Transaction-Driven Behaviour - Why?
GraphAwareTM
Integrations with other systems
In-graph indexing
Additional modifications
Schema enforcement

19. Transaction-Driven Behaviour (How?)
GraphAware Framework makes it extremely easy
to build, test, and deploy custom Transaction-
Driven functionality.
GraphAwareTM

20. Transaction-Driven Behaviour - Examples
GraphAwareTM
Tracking changes in your graph (demo)
Assigning a UUID to each node (demo)
Defining and enforcing constraints (wip)
Auditing
…

21. Transaction-Driven Behaviour - Demo
GraphAwareTM

22. GraphAwareTM
Advanced Use Cases
Custom APIs
Transaction-Driven Behaviour
Asynchronous Computation

23. Asynchronous Computation - What?
GraphAwareTM
Neo4j is primarily OLTP
Requests drive transactions
How about background computation?

24. Asynchronous Computation - Why?
GraphAwareTM
Interesting graph algorithms
Expensive in real-time
Can be approximate
Can be approximated
There are quiet periods / dedicated slaves

25. Asynchronous Computation (How?)
GraphAware Framework makes it possible to
build, test, and deploy functionality executed in
the background during quiet periods.
GraphAwareTM

26. Asynchronous Computation - Examples
GraphAwareTM
Page Rank
Recommendations
Similarities
Centralities
Statistics
…

27. GraphAwareTM
Asynchronous Computation - Demo

28. GraphAware Framework makes it easy to build,
test, and deploy generic as well as domain-specific
functionality for Neo4j.
GraphAwareTM
GraphAware Framework

29. GraphAwareTM
GraphAware Framework
TimeTree
Algorithms
ChangeFeed
UUID
NodeRank

30. GraphAwareTM
GraphAware Framework
GraphUnit & RestTest
RelCount
WarmUp
Schema (wip)
Recommendation Engine (wip)

31. GraphAwareTM
GraphAware Framework
Open Source (GPL)
Active
Production Ready
Github (http://github.com/graphaware)
Our Web (http://graphaware.com)
Maven Central

32. GraphAwareTM
GraphAware Framework
Try it
Give us feedback
Contribute
Build Own Modules
Get in touch for consultancy / support
info@graphaware.com / @graph_aware

33. Thank You!
www.graphaware.com
@graph_aware
@bachmanm
GraphAwareTM