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-2
votes
0answers
11 views

Difference between Service Gateway and API Management [closed]

I recently came to know about Intel Service Gateway and Axway API managements tools.. As there are many vendors providing Service gateways and API management tools,I want to know in general,what is ...
0
votes
1answer
160 views

Would adding more digits be a way to scale a order generation service? [closed]

I am working on interview questions from Amazon.com Software Development Engineer Intern Interview Questions. One of the interviewees was asked "give a scalable system design of Amazon.com's order ...
3
votes
1answer
154 views

How do I create a modal service with AngularJS?

I'm trying to make a service that's polymorphic based upon what mode is specified in the URL. If the char param in the route is set to 'p', I want to use a PresentMode service. If the char param is ...
1
vote
2answers
131 views

local communications between two apps

To make a platform-independent program in C++ I want to separate the GUI (separate for each OS, using native libraries/APIs) and the actual program. Obviously those two need to communicate with each ...
1
vote
1answer
61 views

Duplicate method in spring services, how to refactor?

ServiceOne.java private void doStuff(){} ServiceTwo.java private void doStuff() Where to put common code ? Shall I create a new service, but then what interface will it implement ? Or shall I ...
-1
votes
1answer
149 views

Calling another program from a Windows Service

Problem: I am working on a service which will do some automated processing at a configurable time each night. It does some communication over the internet, formats some information, and creates a ...
0
votes
2answers
473 views

Real time data synchronization techniques between two systems

I need to come up with a design for real-time data update from a COTS product (a Point of Sales system) to a custom-built .NET application (an Inventory Management system). Particularly, any sales ...
2
votes
0answers
42 views

Android network Lib development

I have to develop an Android library that should frequently communicate with a server in the background. Access to the lib Object should be guaranteed everywhere in the Apps that will use it, so I ...
1
vote
0answers
135 views

Web Services and Computer Services to access low level system functions

So I think I'm in the right place to ask this question. Its fairly conceptual. I love web development, I work in ASP.NET MVC 3/4/5 C# and have created industry standard applications such as CRM's and ...
1
vote
3answers
359 views

MVC: What is the difference between a model and a service?

Why in some frameworks the logic layer is called "Model" whereas in some it is called "Service". Are they different from each other or just different by naming conventions? UPDATE 1 The reason I'm ...
3
votes
0answers
296 views

Is this any form of service pattern, some other pattern, SOA or just an anti-pattern?

I'm going to set out a scenario/pattern I've encountered and then I have a few questions pertaining to it. During an MVC request in a web framework (PHP, Laravel in my case), if I have an abstract ...
2
votes
1answer
156 views

Moving business logic from services to classes?

I have a Grails application with a number of services that are starting to get very large. The flow in the majority of my service methods is Database read (Returns DBCursor from MongoDB) Iterate ...
0
votes
2answers
524 views

Android Design - Service vs Thread for Networking

I am writing an Android app, finally (yay me) and for this app I need persistant, but user closeable, network sockets (yes, more than one). I decided to try my hand at writing my own version of an ...
3
votes
3answers
124 views

Is it bad practice to have FooObject and FooObjectSummary?

I have a service where users can upload/download/replace/delete files. These files have about a dozen attributes that are saved to a SQL Database. Periodicaly throughout their session they will have ...
0
votes
1answer
83 views

Services in Model Layer

I understand services should have no state and no business logic. How can you implement a service like AuthentificationService considering these rules? All the methods in a service should be ...
3
votes
1answer
971 views

Hosting long-running worker inside IIS

Is it possible to host a long-running worker inside ASP.NET application? The worker (for it's a windows service) is reading from a queue sending messages to a WCF service. Would it be possible to run ...
5
votes
2answers
6k views

How to manage 2 DAO methods in a single transaction?

In an interview someone asked me : How do we manage 2 transactional/dao methods in a single transaction. Desired capabilities: If anyone of them fails we need to rollback both methods. Both of the ...
35
votes
6answers
16k views

How essential is it to make a service layer?

I started building an app in 3 layers (DAL, BL, UI) [it mainly handles CRM, some sales reports and inventory]. A colleague told me that I must move to service layer pattern, that developers came to ...
5
votes
2answers
591 views

Amazon SOA: database as a Service

There is an interesting interview with Werner Vogels which is partly about how Amazon does Service Oriented Architecture: For us service orientation means encapsulating the data with the ...
4
votes
3answers
170 views

How to handle errors back in an API environment

We're discussing the best way to handle errors in calls to a method. We have a credit model where we allow users to deduct credits for certain actions. We'd like to make a call to: ...
3
votes
5answers
326 views

Is It OK to Develop Against a 3rd Party Library You Discover?

If you find out a way to interact with a web service API that is not publicly documented as available, and can emulate it within an application you develop, is it illegal to do so? Furthermore is it ...
2
votes
1answer
110 views

Best design for a memory resident tool

I apologize if this tends more toward design that programming, but here goes. What design would you recommend for a database that is Memory resident Must run on windows, linux and (at a stretch) ...
7
votes
3answers
16k views

Multi-threading in C# .NET Windows Service

I am writing a Windows Service (using C# .NET 3.5 VS2008) and my requirement is: When the Windows Service start - it performs record check operation (in Database) @ every 30 second interval (I have ...