Interface examples.ejb.basic.statefulSession.Trader


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Interface examples.ejb.basic.statefulSession.Trader

public interface Trader

The methods in this interface are the public face of TraderBean. The signatures of the methods are identical to those of the EJBean, except that these methods throw a java.rmi.RemoteException. Note that the EJBean does not implement this interface. The corresponding code-generated EJBObject, TraderBeanE, implements this interface and delegates to the bean.

buy(String, String, int): Buys shares of a stock for a named customer.
getBalance(): Returns the current balance of a trading session.
sell(String, String, int): Sells shares of a stock for a named customer.

buy


public TradeResult buy(java.lang.String customerName,
                       java.lang.String stockSymbol,
                       int shares) throws ProcessingErrorException, java.rmi.RemoteException

Parameters:: customerName - String Customer name; stockSymbol - String Stock symbol; shares - int Number of shares to buy
Returns:: TradeResult Trade Result
Throws:: ProcessingErrorException - if there is an error while buying the shares; java.rmi.RemoteException - if there is a communications or systems failure

sell


public TradeResult sell(java.lang.String customerName,
                        java.lang.String stockSymbol,
                        int shares) throws ProcessingErrorException, java.rmi.RemoteException

Parameters:: customerName - String Customer name; stockSymbol - String Stock symbol; shares - int Number of shares to buy
Returns:: TradeResult Trade Result
Throws:: ProcessingErrorException - if there is an error while selling the shares; java.rmi.RemoteException - if there is a communications or systems failure

getBalance


public double getBalance() throws java.rmi.RemoteException

Returns:: double Balance
Throws:: java.rmi.RemoteException - if there is a communications or systems failure


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