ebus | Python Client for EBUS daemon

Before posting this question, I searched a lot but didn't get my answer. Here's my question:

I noticed many times while working with Firebase android that whenever I connect two different apps to the same Firebase project if I install those two apps on the same device one of them is able to send/retrieve data to the database while the other is not. For example:

1. I recently worked on a Uber clone app and I accidentally installed both the rider and driver app on the same emulator device and one app was unable to send data to firebase but when I ran them both on separate devices, everything worked fine.

2. Now I am working on a university project EBus that has two modules, one for the student and the other for the driver. I am using my phone for testing today I started developing my driver app and installed it on my phone where the student app was already installed, I was unable to send data to Firebase real-time database. But, when I installed the driver app on a different device everything worked fine.

My Code :

while learning DDD and cqrs, here is something I need to clarify. In a shopping context, I have a customer which I believe is my aggregate root and I would like to implement the simple use-case of change customer name.

Here is my implementation take on this using DDD/CQRS as much as I know.

My concerns are

• for validation, should the command also validate the input to make it conform with the value object or is it okay to leave it to handler?
• is my overall flow alright or am I heavily missing somewhere?
• If this flow is right, I see that Customer Aggregate root will be a huge class with numerous functions like changeName, changeAddress, changePhoneNumber, deleteSavedPaymentMethod and so on. It will become a god class, and that seems a bit odd to me, is it actually the right way of DDD aggregate root implementation?

// Value Object

In compiling a DLL, I've been running into a lot of undefined reference errors, which I think may be caused by circular dependencies between libraries. To fix this, I've been trying to use the -( archives -) and --start-group archives --end-group options:

gcc -Wall -shared Pipeline.cpp -I"C:/Python38/include" -I"C:/Program Files/Pleora Technologies Inc/eBUS SDK/Includes" -I "C:/Python38/Lib/site-packages/numpy/core/include" -L"C:\Users\fmkz78\AppData\Local\Continuum\anaconda3\libs" -L"C:/Program Files/Pleora Technologies Inc/eBUS SDK/Libraries" -o lib.dll -( -lEbInstallerLib64 -lEbTransportLayerLib64 -lEbUtilsLib64 -lPtConvertersLib64 -lPtUtilsLib64 -lPvAppUtils64 -lPvBase64 -lPvBuffer64 -lPvCameraBridge64 -lPvDevice64 -lPvDSSource64 -lPvGenICam64 -lPvGUI64_VC10 -lPvGUI64_VC11 -lPvGUI64_VC12 -lPvGUI64_VC14 -lPvPersistence64 -lPvSerial64 -lPvStream64 -lPvSystem64 -lPvTransmitter64 -lPvVirtualDevice64 -lSimpleImagingLib64 -lpython37 -)

Doing this results in the error gcc: error: unrecognized cpmmand line option '-(' and again for the closing option. I get the same problem using the start and end group options. I'm running on Windows 10 using the MinGW gcc compiler.

Am I using them in the wrong place, or is there a problem in my setup?

I'm having a problem calling a method from a .NET dll linked to the eBUS SDK. The end goal of the code is to communicated to a GigE connected camera using python.

In C#, the method is: public void SetStreamDestination( string aIPAddress, ushort aDataPort ) , and is part of a class called PvDeviceGEV.

In Python, I'm using pythonnet to import the dll. I'm then using this code:

I'm trying to write a native query in JPA. I want to verify if an element exists in a jsonb column. However, I'm getting the error integer <@ jsonb.

This is my query:

I tried to compile some kernel modules from Pleora eBUS SDK on a Linux Ubuntu 19.04 machine with Kernel version 5.0.0-38-generic, but got the compilation error: