The JanusGraph examples show the basics of how to configure and construct a graph application. It uses Apache Maven to manage the numerous dependencies required to build the application. The common application will:

• Open and initialize the graph
• Define the schema
• Build the graph
• Run traversal queries to get data from the graph
• Make updates to the graph
• Close the graph

By using different graph configurations, the same example code can run against the various supported storage and indexing backends.

• Java 8 Development Kit, update 40 or higher. Oracle Java and OpenJDK have been tested successfully.
• Apache Maven, version 3.3 or higher

Download the latest JanusGraph release distribution zip file and unzip it.

The examples are packaged with the JanusGraph distribution zip file in the examples directory. Run the Maven build command from the examples directory.

mvn clean install

These commands can be run from the examples or project's directory. Please refer to the specific directions for each project as there may be additional setup and configuration required.

mvn exec:java -pl :example-common

mvn exec:java -pl :example-berkeleyje

mvn exec:java -pl :example-cassandra

mvn exec:java -pl :example-cql

mvn exec:java -pl :example-hbase

mvn exec:java -pl :example-hbase -Dexample.config="\${project.basedir}/conf/jgex-hbase-solr-http.properties"

mvn exec:java -pl :example-remotegraph

mvn exec:java -pl :example-tinkergraph

After running an example, you may want to drop the graph from storage. Make sure to stop the application before dropping the graph. These commands can be run from the examples or the project's directory, but please refer to the specific directions for each project as there may be additional steps for clean up.

mvn exec:java -pl :example-berkeleyje -Dcmd=drop

mvn exec:java -pl :example-cassandra -Dcmd=drop

mvn exec:java -pl :example-cql -Dcmd=drop

mvn exec:java -pl :example-hbase -Dcmd=drop

mvn exec:java -pl :example-hbase -Dexample.config="\${project.basedir}/conf/jgex-hbase-solr-http.properties" -Dcmd=drop