No need to maintain the state of a bean between calls. //CalculatorBean.java@Statelesspublic class CalculatorBean implements CalculatorRemote, CalculatorLocal{ public int add(int x, int y) { return x + y; } public int subtract(int x, int y) { return x - y; }}//CalculatorRemote.javaimport javax.ejb.Remote;@Remotepublic interface CalculatorRemote extends Calculator{}//CalculatorLocal.java import javax.ejb.Local;@Localpublic interface CalculatorLocal extends Calculator{}//Client.javaimport tutorial.stateless.bean.Calculator;import tutorial.stateless.bean.CalculatorRemote;import javax.naming.InitialContext;public class Client{ public static void main(String[] args) throws Exception { InitialContext ctx = new InitialContext(); Calculator calculator = (Calculator) ctx.lookup("CalculatorBean/remote"); System.out.println("1 + 1 = " + calculator.add(1, 1)); System.out.println("1 - 1 = " + calculator.subtract(1, 1)); }}
From: http://sitestree.com/?p=4831
Categories:Java Short Notes
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Post Data:2011-05-30 17:27:29
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