Contents
What is reversing dependency?
a situation in which the personal self-worth of a parent or parents becomes dependent on their child’s performance in school, sport, or some other social context.
What is difference between IoC and dependency injection in Spring?
Inversion of control is a design principle which helps to invert the control of object creation. Dependency Injection is a design pattern which implements IOC principle. DI provides objects that an object needs.
How does the design principle change the direction of dependency?
The design principle does not just change the direction of the dependency, as you might have expected when you read its name for the first time. It splits the dependency between the high-level and low-level modules by introducing an abstraction between them. So in the end, you get two dependencies: the low-level depends on the same abstraction.
How is dependency inversion used in solid design?
It splits the dependency between the high-level and low-level modules by introducing an abstraction between them. So in the end, you get two dependencies: the low-level depends on the same abstraction. This might sound more complex than it often is.
How is data represented in a relational model?
The model provides a simple, yet rigorously defined, concept of how users perceive data. The relational model represents data in the form of two-dimension tables. Each table in the represents some real-world person, place, thing, or event about which information is collected. A relational database is a collection of two-dimensional tables.
How to implement the dependency inversion principle in Java?
To implement a class that follows the Dependency Inversion Principle and can use the BasicCoffeeMachine or the PremiumCoffeeMachine class to brew a cup of coffee, you need to apply the Open/Closed and the Liskov Substitution Principle. That requires a small refactoring during which you introduce interface abstractions for both classes.