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Is it bad to have many dependencies?
The fact your class has so many dependencies indicates there are more than one responsibilities within the class. Often there is an implicit domain concept waiting to be made explicit by identifying it and making it into its own service. Generally speaking, most classes should never need more than 4-5 dependencies.
Which dependency injection method is better constructor based or setter based?
Use Setter injection when a number of dependencies are more or you need readability. Use Constructor Injection when Object must be created with all of its dependency.
How do you break cyclic dependency?
But circular dependencies in software are solvable because the dependencies are always self-imposed by the developers. To break the circle, all you have to do is break one of the links. One option might simply be to come up with another way to produce one of the dependencies, in order to bootstrap the process.
Should I avoid dependencies?
If you can easily get by without a dependency, you don’t need the dependency. If you’re building a library, you should avoid dependencies. Don’t avoid dependencies if it means potentially putting your users at risk.
Are circular dependencies bad?
Cyclic dependencies between components inhibit understanding, testing, and reuse (you need to understand both components to use either). This makes the system less maintainable because understanding the code is harder. Cyclic dependencies can cause unwanted side effects in a software system.
How does Spring handle cyclic dependency?
Spring sets properties and resolves dependencies as late as possible, when the bean is actually created. The Spring container is able to resolve Setter-based circular dependencies but gives a runtime exception BeanCurrentlyInCreationException in case of Constructor-based circular dependencies.
How to update dependencies not referenced directly as?
Transitive dependencies which are clearly viewable can be manually updated very easily. When using the new Sdk-style .csproj projects NuGet references are added as to the project file itself and transitive dependencies are referenced by MSBuild silently:
When do you need to update dependencies in Visual Studio?
This enables a use case when one installs a package with dependencies and then decides which transitive dependencies can be manually updated. So, the benefits are: E.g., after installing Autofac.WebApi2.Owin from NuGet, we have a picture like this: Transitive dependencies which are clearly viewable can be manually updated very easily.
How to update dependencies in legacy csproj project?
When using “legacy”-style .csproj project files we have a separate packages.config file where all dependencies are listed, including transitive ones. This enables a use case when one installs a package with dependencies and then decides which transitive dependencies can be manually updated.
How to know the dependencies of a project?
When using the new Sdk-style .csproj projects, you will notice that there is a tree structure of transitive dependencies in the Reference: With this structure, we can not only get presence of a flat list can also clearly know the specific dependencies between packages.