All Examples All EJB Examples This Package
Class examples.ejb.basic.statelessSession.TraderBean
examples.ejb.basic.statelessSession.TraderBean
- public class TraderBean
TraderBean is a stateless Session Bean. This bean illustrates:
- No persistence of state between calls to the Session Bean
- Looking up values from the Environment
-
TraderBean()
-
-
buy(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
"TraderHome.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.
-
sell(String, int)
- Sells shares of a stock for a named customer.
-
setSessionContext(SessionContext)
- Sets the session context.
TraderBean
public TraderBean()
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(javax.ejb.SessionContext ctx)
Sets the session context.
- Parameters:
ctx
- SessionContext Context for session
ejbCreate
public void ejbCreate() throws javax.ejb.CreateException
This method corresponds to the create method in the home interface
"TraderHome.java".
The parameter sets of the two methods are identical. When the client calls
TraderHome.create()
, the container allocates an instance of
the EJBean and calls ejbCreate()
.
- Throws:
- javax.ejb.CreateException - if there is
a communications or systems failure
- See Also:
- Trader
buy
public TradeResult buy(java.lang.String stockSymbol,
int shares)
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
- Returns:
- TradeResult Trade Result
if there is an error while buying the shares
sell
public TradeResult sell(java.lang.String stockSymbol,
int shares)
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
- Returns:
- TradeResult Trade Result
if there is an error while selling the shares
All Examples All EJB Examples This Package