Code Illustration Using Java
Using the stock trading example mentioned above, the following Java examples show how coupled (manually injected) dependencies and framework-injected dependencies are typically staged.
The following interface contracts define the behavior of components in the sample system.
public interface IOnlineBrokerageService { String getStockSymbols; double getAskingPrice(String stockSymbol); double getOfferPrice(String stockSymbol); void putBuyOrder(String stockSymbol, int shares, double bidPrice); void putSellOrder(String stockSymbol, int shares, double offerPrice); } public interface IStockAnalysisService { double getEstimatedValue(String stockSymbol); } public interface IAutomatedStockTrader { void executeTrades; }Read more about this topic: Dependency Injection
Famous quotes containing the words code and/or illustration:
“Hollywood keeps before its child audiences a string of glorified young heroes, everyone of whom is an unhesitating and violent Anarchist. His one answer to everything that annoys him or disparages his country or his parents or his young lady or his personal code of manly conduct is to give the offender a “sock” in the jaw.... My observation leads me to believe that it is not the virtuous people who are good at socking jaws.”
—George Bernard Shaw (1856–1950)
“What is character but the determination of incident? What is incident but the illustration of character?”
—Henry James (1843–1916)