structr (pronounce it like 'structure') is a Java framework for mobile and web applications based on the graph database Neo4j. It was designed to simplify the creation of complex graph database applications by providing a comprehensive Java API and a set of features common to most use cases. This enables developers to build a sophisticated web or mobile app based on Neo4j within hours.
- highly configurable RESTful API using Java beans
- data integrity and validation constraints
- Cypher Query Language support
- access control
- search/spatial search
- CRON-jobs for background agents
structr was awarded with the Graphie Award for the Most Innovative Open Source Graph Application in 2012.
structr uses Apache Maven, so you can use Maven to get a demo project up and running in 5 minutes with our simple example archetype.
- See the screencast for a short introduction to the maven archetype and a small feature demo.
- See the structr quick start guide for more information on the CMS module.
- See the structr-android-client project on github for more information on how to use structr as a mobile backend.
public class City extends AbstractNode {
// define a 1:n relationship between “City” and “Person”
public static final Property<List<Person>> persons =
new CollectionProperty<Person>(
"persons", // the name of the property
Person.class, // the end node type
RelType.LIVES_IN, // the relationship type
Direction.INCOMING, // the direction
true // 1:n instead of n:m
);
// define the public view of a City to contain name and persons
public static final View publicView = new View(Person.class, PropertyView.Public,
name, persons
);
}
curl -si http://0.0.0.0:8082/structr/rest/cities -XPOST -d '{"name":"Berlin"}'
HTTP/1.1 201 Created
Content-Type: application/json; charset=UTF-8
Location: http://0.0.0.0:8082/structr/rest/cities/2fe1180289db49f59827f9a88aefa707
Transfer-Encoding: chunked
Server: Jetty(8.1.0.RC5)
curl -si http://0.0.0.0:8082/structr/rest/cities
HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Transfer-Encoding: chunked
Server: Jetty(8.1.0.RC5)
{
"query_time": "0.071098661",
"result_count": 1,
"result": [
{
"id": "2fe1180289db49f59827f9a88aefa707",
"name": "Berlin",
"persons": []
}
],
"serialization_time": "0.000401979"
}
There are these two main components: structr Server and structr UI.
structr Server provides libraries and modules building the backend.
structr UI is a frontend for CRUD operations and basic CMS functionalitiy, e.g. for handling pages, files, images, users/groups.
- structr.org [http://structr.org]
- Neo4j [http://neo4j.org]
For updates and news around structr, follow @structr on Twitter.
For submitting feature requests or bug report, please use Github's issue tracking system.
In order to contribute to structr, you must sign the structr Contributor’s License Agreement, which can be found here.
- Axel Morgner ([email protected], @amorgner)
- Christian Morgner ([email protected], @cmor_)
Copyright 2010-2013 Axel Morgner structr is licensed under the GPLv3 and AGPLv3 (structr UI).