Am I using the MANY_TO_MANY relation correctly?

Question

Hi
thank you for reading my post. I am trying to write a sample code for many to many relation. so far I get to the point that I should do the following tasks:
1- define Tasks Entity with the following definition for many to many relation
@SecondaryKey(relate = Relationship.MANY_TO_MANY,
    relatedEntity = Worker.class)
    private Set<String> workers;2- define the Worker entity with the following definition for many to many relation
@SecondaryKey(relate = Relationship.MANY_TO_MANY,
    relatedEntity = Task.class)
    private Set<String> tasks;Assuming that the above way of defining the relation is correct, can you please let me know whether the following statement are correct:
- When I need to store a Task entity, its workers field is null until I create all workers entity and then I should update the Task entity with a Set object containing all workers primary key.
- When I need to store a Worker entity, its tasks field is null until I create all tasks entity and then I should update the Worker entity with a Set object containing all tasks primary key.
Is it possible to use other collections instead of Set?
Thanks

Answer 1

Assuming that the above way of defining the relation is correct, It's not, you only need one of those secondary keys, not both. See examples/persist/PersonExample.java and the Many-to-Many Relationships section in the javadoc for the SecondaryIndex class.
can you please let me know whether the following statement are correct:- When I need to store a Task entity, its workers field is null until I create all workers entity and then I should update the Task entity with a Set object containing all workers primary key.
- When I need to store a Worker entity, its tasks field is null until I create all tasks entity and then I should update the Worker entity with a Set object containing all tasks primary key.
Is it possible to use other collections instead of Set?>
Please see the javadoc.
--mark