Retrieve Entity Offline

Hi everyone,

We have an offine app and are creating a widget. We have difficulty in retrieve objects from datasource. Let's say, in the model, we have

Entity1 (1)------->(*) Entity2

My questions are:

1. How we can get all objects of Entity1

2. Suppose we have an object as instance of Entity1, how we get objects of Entity2 connected to it.

So far, we try:

  mx.data.get({
                        aggregates: false,
                        count: true,
                        xpath: "//ModuleName.Entity1",
                        callback: function (results) {},
                        error: function () {
                        }
                    });

To get all object of Entity1, but it doens't work.

mx.data.get({
                        aggregates: false,
                        count: true,
                        xpath:"//Module.Entity2[ModuleName.E2_E1=\"objE1Id\"]",
                        callback: function (results) { },
                        error: function () {
                        }
                    });

or

  mx.data.get({
                        guid: objE1Id,
                        aggregates: false,
                        count: true,
                        path:"ModuleName.E2_E1",
                        callback: function (results) { },
                        error: function () {
                        }
                    });

But they don't work either.

Does anyone know answers for our questions?

Best regards