Hi Jose,
[warning: I wrote this code in my email client, it may not even compile, but it
should give you the right idea]
Rather than use inheritance to build your domain model, composition is
preferred. So:
class Person {
Node node;
public Person(String name, int age, Node dbNode) {
node = dbNode;
node.setProperty("name", name);
node.setProperty("age", age);
}
// Other methods elided for brevity
}
To use this, you'll have to create a transaction and a node in the DB:
Transaction tx = db.beginTx();
try {
Node me = db.createNode();
Person me = new Person("Jim", 36, me);
tx.success();
} finally {
tx.finish();
}
If you want to, for example, create some friends, add such a method to your
domain model:
public void friendsWith(Person p) {
this.node.createRelationshipTo(p, FRIENDS_WITH);
}
Of course the FRIENDS_WITH relationship needs to be defined:
public class FriendsWith implements RelationshipType {
private FriendsWith(){}
public static final FriendsWith FRIENDS_WITH = new FriendsWith();
public String name() {
return "works-for";
}
}
And remember to create the relationship within a transactional scope:
Transaction tx = db.beginTx();
try {
me.friendsWith(you); // me and you are of type Person
tx.success();
} finally {
tx.finish();
}
Hope that helps.
Jim
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