ReferenceTest.java

ReferenceTest.java

static class Parent {
  @Id
  Long id;
    
}
  
static class Child {
    
  @Id
  Long id;
    
  Parent parent;
}


@Test
public void findChildOfAParent() {
    ObjectDatastore datastore = new AnnotationObjectDatastore();

    Parent parent = new Parent();
    
    datastore.store().instance(parent).now();
    
    Child child = new Child();
    child.parent = parent;
    datastore.store().instance(child).now();

    datastore.disassociateAll();

    List<Child> childList = datastore.find().type(Child.class)
            .addFilter("parent", FilterOperator.EQUAL, parent).returnAll().now();

    assertThat(childList.size(),is(equalTo(1)));
}