Create DocumentaryUnit with Repository and User params...

gistfile1.java

    // Create a doc unit with a repository and a user...
    // Glosses over lots of potential errors!

    public void createDocumentaryUnit(Long repositoryId, Long userId,
            Map<String, Object> data) throws ValidationError,
            DeserializationError, PermissionDenied {

        // Load the repository this collection will be part of...
        Agent repo = graph.getVertex(repositoryId, Agent.class);

        // Create a generic view class, which handles *generic* CRUD with
        // permissions checking etc
        Views<DocumentaryUnit> docview = new Views<DocumentaryUnit>(graph,
                DocumentaryUnit.class);

        // Obtain a documentary unit...
        DocumentaryUnit unit = docview.create(data, userId);

        // add the unit to the collection (creates a "holds" relationship)
        repo.addCollection(unit);
    }