pokemon embedded list

pokemonembeddedlist.java

        OrientGraphNoTx graphOne = new OrientGraphNoTx(URL, USER, USER);
        try {
            OSchema schema = graphOne.getRawGraph().getMetadata().getSchema();

            OClass pokemon = schema.createClass("Pokemon");
            pokemon.createProperty("name", OType.STRING);

            OClass vClass = schema.getClass("V");
            OClass pokemonMaster = schema.createClass("PokemonMaster");
            pokemonMaster.setSuperClass(vClass);
            pokemonMaster.createProperty("name", OType.STRING);
            pokemonMaster.createProperty("age", OType.INTEGER);
            pokemonMaster.createProperty("pokemons", OType.EMBEDDEDLIST, pokemon);
        } finally {
            graphOne.shutdown();
        }

        String pmRID = "";

        OrientGraph graphTwo = new OrientGraph(URL, USER, USER);
        try {
            ODocument pokemon = new ODocument("Pokemon");
            pokemon.field("name", "Pikachu");

            OrientVertex v = graphTwo.addVertex("class:PokemonMaster",
                    "name", "Sacha",
                    "age", "42",
                    "pokemons", pokemon);

            graphTwo.commit();
            pmRID = v.getIdentity().toString();
        } catch (Exception e) {
            // ...
        } finally {
            graphTwo.shutdown();
        }

        OrientGraph graphThree = new OrientGraph(URL, USER, USER);
        try {
            ODocument pokemon = new ODocument("Pokemon");
            pokemon.field("name", "Raichu");

            OrientVertex v = graphThree.getVertex(pmRID);
            List<ODocument> pokemons = v.getProperty("pokemons");
            if (pokemons == null) {
                pokemons = new ArrayList();
            }
            pokemons.add(pokemon);
            v.setProperty("pokemons", pokemons);

            graphThree.commit();
        } catch (Exception e) {
            // ...
        } finally {
            graphThree.shutdown();
        }