I have a Contract class. The contract is valid 1 Jan 2010 - 31 Dec 2010.
It can be in state Active or Passive, depending on which date I ask the instance for it's state. ex. if I ask 4 July 2010, it's in state Active, but if I ask 1 Jan 2011, it's in state Passive.
Instances are created using constructor dependency injection, i.e. they are either…
i have two maven projects, the first one is a library and the other one use it to works properly, the both have to elvolve regardless each other, this is why i use two different project.
But breakpoints on my library code doesn't work when i launch my app (the second application).
This is how i include my library in the second project's POM (my…
How do we identify when to use dependency injection or singleton pattern.
I have read in lot of websites where they say "Use Dependency injection over singleton pattern". But I am not sure if I totally agree with them. For my small or medium scale projects I definitely see the use of singleton pattern straightforward.
For example Logger. I could…
Hi, I am trying to get started with some simple dependency injection using C# and i've run up against an issue that I can't seem to come up with an answer for.
I have a class that was written by another department for which I don't have the source in my project. I wanted to inject an object of this type though a constructor using an interface,…
It's easy to let program figure out the dependency at compile time, (with gcc -MM). Nevertheless, link dependency (deciding which libraries should be linked to) seems to be difficult to figure out. This issue become emergent when multiple targets with individual libraries to link to are needed.
For instance, three dynamic library targets…
I am unable to build pyv8 from source on FreeBSD. I have installed the /usr/ports/lang/v8 port, and I'm running into the following error. It seems that pyv8 wants to build v8 itself even though v8 is already built and installed. How can I point pyv8 to the already installed location of v8?
# python setup.py build
Found Google v8 base…
I know this has been asked several times, but each issue and resolution seems different. I've tried almost everything I could think of, but I can't fix this.
I have a VM (VMware I think) running 12.04.03 LTS which has stuck dependencies. The VM is on a rented host, running a live system so I don't want to break it (further).
uname -a
…
I am new to mocking and dependency injection and need some guidance.
My application is using a typical N-Tier architecture where the BLL references the DAL, and the UI references the BLL but not the DAL. Pretty straight forward.
Lets say, for example, I have the following classes:
class MyDataAccess : IMyDataAccess {}
class…
Trying to figure out how to best handle the following scenario:
Assume a RequestContext class which has a dependency to an external service, such as:
public class RequestContext : IRequestContext
{
private readonly ServiceFactory<IWeatherService> _weatherService;
public…
Hi
We have a user control with a custom dependency property (DP). The DP is bound to an ObservableCollection.
When a new item is added to the collection programatically, the databinding does not update the target DP. Why? We think it's because, unfortunately, in our case the target is…
We are a few months into a green-field project to rework the Logic and Business layers of our product. By utilizing MEF (dependency injection) we have achieved high levels of code coverage and I believe that we have a pretty solid product. As we have been working through some of the…
I've got a simple winform test app i'm using to try some Log4Net Dependency Injection stuff.
I've made a simple interface in my Services project :-
public interface ILogging
{
void Debug(string message);
// snip the other's.
}
Then my concrete type will be using…
The problem I have is a circular dependency issue in C header files ...Having looked around I suspect the solution will have something to do with Forward Definitions, but although there are many similar problems listed, none seem to offer the information I require to resolve…
Suppose I have a C++ class like so:
class A
{
public:
A()
{
}
void SetNewB( const B& _b ) { m_B = _b; }
private:
B m_B;
}
In order to unit test something like this, I would have to break A's dependency on B. Since…
Most examples of a DCI Context are implemented as a Command pattern. When using Dependency Injection though, it's useful to have the dependencies injected in the constructor and send the parameters into the executing method. Compare the Command pattern class:
public…
I'm trying to introduce DI as a pattern here at work and one of our lead developers would like to know: What - if any - are the downsides to using the Dependency Injection pattern?
Note I'm looking here for an - if possible - exhaustive list, not a subjective…
Hi
I am trying to obtain a dependency parse tree using AGFL.
Unfortunately I cannot understand how to derive this. I am trying to generate the npx grammar but I am still lost
can someone help me please?
Thanks :)
L
I have tried to understand AOP, Dependency Injection and Inversion of Control SPRING related concepts but I am having hard time understanding it.
Can anyone explain this in simple English ?
I want to copy all external dependency libraries to a directory, but I don't want to do this job manually, since there are quite lot of libraries. I wonder if there is a way to let the eclipse do it for me automatically.
In what concrete web project(s), specifically what part of the web-application/website, that you have worked on, has dependency injection proven to be a good choice. Can you give concrete examples where you actually substituted one component for another with DI…
Is there a way to add dependencies to an existing pom.xml via shell script?
Something like:
mvn dependency:add -DgroupID=com.acme -DartifactId=project
[Update]
Clarified that I want to add to an existing pom
First, I want to say that I am not interested in debating about any non-helpful "answers" to my question, with suggestions to putting everything in one assembly, i.e. there is no need for anyone to provide webpages such as the page titled with "Separate…