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Class examples.xml.biztalk.ejb.biztrader.BizTraderBean

java.lang.Object
   |
   +----examples.xml.biztalk.ejb.biztrader.BizTraderBean

public class BizTraderBean
extends Object
implements SessionBean

BizTraderBean is a stateless SessionBean. It is based off of examples.ejb.basic.statelessSession.TraderBean. This bean also implements the examples.xml.biztalk.ejb.BizBean interface and illustrates:

No persistence of state between calls to the SessionBean
Application-defined exceptions

Author:: Copyright (c) 2000 by BEA Systems, Inc. All Rights Reserved.

BizTraderBean()

buy(String, String, int): Buys shares of a stock for a named customer.
ejbActivate(): This method is required by the EJB Specification, but is not used by this example.
ejbCreate(): This method corresponds to the create method in the home interface "BizBeanHome.java".
ejbPassivate(): This method is required by the EJB Specification, but is not used by this example.
ejbRemove(): This method is required by the EJB Specification, but is not used by this example.
getStockPrice(String): Returns the stock price for a given stock.
sell(String, String, int): Sells shares of a stock for a named customer.
service(IncomingMessage): Called by BizTalk Server when a message for this bean is received.
setSessionContext(SessionContext): Sets the session context.

BizTraderBean

 public BizTraderBean()

ejbActivate

 public void ejbActivate()

This method is required by the EJB Specification, but is not used by this example.

ejbRemove

 public void ejbRemove()

This method is required by the EJB Specification, but is not used by this example.

ejbPassivate

 public void ejbPassivate()

This method is required by the EJB Specification, but is not used by this example.

setSessionContext

 public void setSessionContext(SessionContext ctx)

Sets the session context.

Parameters:: ctx - SessionContext Context for session

ejbCreate

 public void ejbCreate() throws CreateException

This method corresponds to the create method in the home interface "BizBeanHome.java". The parameter sets of the two methods are identical. When the client calls BizBeanHome.create(), the container allocates an instance of the EJBean and calls ejbCreate().

Throws: CreateException: if there is a communications or systems failure
See Also:: BizTraderBean

buy

 public void buy(String customerName,
                 String stockSymbol,
                 int shares) throws ProcessingErrorException

Buys shares of a stock for a named customer.

Parameters:: customerName - String Customer name; stockSymbol - String Stock symbol; shares - int Number of shares to buy
Throws: ProcessingErrorException: if there is an error while buying the shares

sell

 public void sell(String customerName,
                  String stockSymbol,
                  int shares) throws ProcessingErrorException

Sells shares of a stock for a named customer.

Parameters:: customerName - String Customer name; stockSymbol - String Stock symbol; shares - int Number of shares to buy
Throws: ProcessingErrorException: if there is an error while selling the shares

getStockPrice

 public double getStockPrice(String stockSymbol) throws ProcessingErrorException

Returns the stock price for a given stock.

Parameters:: stockSymbol - String Stock symbol
Returns:: double Stock price
Throws: ProcessingErrorException: if there is an error while checking the price

service

 public void service(IncomingMessage message) throws RemoteException

Called by BizTalk Server when a message for this bean is received. This method processes the BizTalk message payload by executing the trade defined in the payload.

Parameters:: message - BizTalk message payload.
Throws: RemoteException,: ProcessingErrorException

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