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Should services always return DTOs, or can they also return domain models?
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it doesn't feel right when domain model leaves business layer (service layer)
Makes you feel like you are pulling the guts out right? According to Martin Fowler: the Service Layer defines the application's boundery, it encapsulates the domain. In other words it protects the domain.
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Inject service in app.config
I want to inject a service into app.config, so that data can be retrieved before the controller is called. I tried it like this:
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ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
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I had this issue and the fix was to make sure in tnsnames.ora the SERVICE_NAME is a valid service name in your database. To find out valid service names, you can use the following query in oracle:
select value from v$parameter where name='service_names'
Once I updated tnsnames.ora to:
T...
LogCat message: The Google Play services resources were not found. Check your project configuration
...tion that uses the Google Maps Android v2 API. I've added the google-play-services_lib library project to my workspace and added a reference to it from my application project, following the instructions on these pages:
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What's the difference between @Component, @Repository & @Service annotations in Spring?
Can @Component , @Repository and @Service annotations be used interchangeably in Spring or do they provide any particular functionality besides acting as a notation device?
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windows service vs scheduled task
What are the cons and pros of windows services vs scheduled tasks for running a program repeatedly (e.g. every two minutes)?
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Passing current scope to an AngularJS Service
Is it correct to pass the "current" $scope to an AngularJS service?
4 Answers
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How to have Android Service communicate with Activity
...Android application and trying to get my head around communication between services and activities. I have a Service that will run in the background and do some gps and time based logging. I will have an Activity that will be used to start and stop the Service.
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AWS: How to disable all services?
I was dorking around with AWS (and related services), hoping that I could stay in the Free Tier, like I do when I'm exploring Google App Engine.
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What's the difference between the Dependency Injection and Service Locator patterns?
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The difference may seem slight, but even with the ServiceLocator, the class is still responsible for creating its dependencies. It just uses the service locator to do it. With DI, the class is given its dependencies. It neither knows, nor cares where they come from. One ...