GraphApp is an abstract class that defines a basic structure for a graph application. It contains methods for configuring a graph instance, defining a graph schema, creating a graph structure, and querying a graph.

JanusGraphApp is a subclass of GraphApp using JanusGraph-specific methods to create the schema.

jgex-inmemory.properties contains the settings for the JanusGraph in-memory storage backend. This backend is primarily for testing purposes.

The required Maven dependency for in-memory JanusGraph:

        <dependency>
            <groupId>org.janusgraph</groupId>
            <artifactId>janusgraph-core</artifactId>
            <version>${janusgraph.version}</version>
        </dependency>

This command can be run from the examples or the project's directory.

mvn exec:java -pl :example-common

The in-memory JanusGraph does not store anything into a persistent location, so the graph will disappear when the application finishes.