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:
“...I had grown up in a world that was dominated by immature age. Not by vigorous immaturity, but by immaturity that was old and tired and prudent, that loved ritual and rubric, and was utterly wanting in curiosity about the new and the strange. Its era has passed away, and the world it made has crumbled around us. Its finest creation, a code of manners, has been ridiculed and discarded.”
—Ellen Glasgow (1873–1945)
“An illustration is no argument,—nor do I maintain the wiping of a looking-glass clean, to be a syllogism;Mbut you all, may it please your worships, see the better for it.”
—Laurence Sterne (1713–1768)