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Class examples.ejb.sequence.jdbc.AutoAccountBean

java.lang.Object
   |
   +----examples.ejb.sequence.jdbc.AutoAccountBean

public class AutoAccountBean

extends Object

implements EntityBean

• Container-managed JDBC persistence and transactions; the code in this file never directly accesses the data storage.
• Application-defined exceptions.

Author:

Copyright (c) 1998 by WebLogic, Inc. All Rights Reserved.

Copyright (c) 1998-1999 by BEA WebXpress. All Rights Reserved.

accountId

balance

lastKey

maxKey

AutoAccountBean()

accountId()

Returns account ID.

balance()

Returns current balance.

deposit(double)

Adds amount to balance.

ejbActivate()

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

ejbCreate(double)

This method corresponds to the create method in the home interface "AutoAccountHome.java".

ejbCreate(String, double)

This method corresponds to the create method in the home interface "AutoAccountHome.java".

ejbLoad()

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

ejbPassivate()

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

ejbPostCreate(double)

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

ejbPostCreate(String, double)

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.

ejbStore()

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

id()

Returns the Primary Key identifying this EJBean.

setEntityContext(EntityContext)

Sets the EntityContext for the EJBean.

unsetEntityContext()

Unsets the EntityContext for the EJBean.

withdraw(double)

Subtracts amount from balance.

 public String accountId

 public double balance

 public static int lastKey

 public static int maxKey

 public AutoAccountBean()

 public String id()

Returns the Primary Key identifying this EJBean.

Returns:

String Identification

 public void ejbActivate() throws RemoteException

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

Throws: RemoteException

if there is a communications or systems failure

 public void ejbPassivate() throws RemoteException

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

Throws: RemoteException

if there is a communications or systems failure

 public void setEntityContext(EntityContext ctx) throws RemoteException

Sets the EntityContext for the EJBean.

Parameters:

ctx - EntityContext

Throws: RemoteException

if there is a communications or systems failure

 public void unsetEntityContext() throws RemoteException

Unsets the EntityContext for the EJBean.

Throws: RemoteException

if there is a communications or systems failure

 public void ejbLoad() throws RemoteException

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

Throws: RemoteException

if there is a communications or systems failure

 public void ejbStore() throws RemoteException

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

Throws: RemoteException

if there is a communications or systems failure

 public void ejbRemove() throws RemoteException

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

Throws: RemoteException

if there is a communications or systems failure

 public void ejbCreate(String accountId,
                       double initialBalance)

This method corresponds to the create method in the home interface "AutoAccountHome.java". The parameter sets of the two methods are identical. When the client calls AutoAccountHome.create(), the container (which in WebLogic EJB is also the home) allocates an instance of this EJBean and calls AutoAccountBean.ejbCreate().

For container-managed persistence, ejbCreate() returns a void, unlike the case of bean-managed persistence, where it returns a primary key.

Parameters:

accountID - String Account ID

initialBalance - Double Initial Balance

 public void ejbCreate(double initialBalance) throws CreateException

This method corresponds to the create method in the home interface "AutoAccountHome.java". The parameter sets of the two methods are identical. When the client calls AutoAccountHome.create(), the container (which in WebLogic EJB is also the home) allocates an instance of this bean and calls AutoAccountBean.ejbCreate().

For bean-managed persistence, ejbCreate() returns a primary key, unlike the case of container-managed persistence, where it returns a void.

Unlike the ejbCreate(String accountId, double initialBalance), this version creates a new AccountID using getNewAccountId().

Parameters:

initialBalance - Double Initial Balance

Throws: CreateException

if there is a problem getting an account ID

 public void ejbPostCreate(String accountId,
                           double initialBalance)

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

Parameters:

accountID - String Account Identification

initialBalance - double Initial Balance

 public void ejbPostCreate(double initialBalance)

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

Parameters:

initialBalance - double Initial Balance

 public double deposit(double amount)

Adds amount to balance.

Parameters:

amount - double Amount

Returns:

double balance

 public double withdraw(double amount) throws ProcessingErrorException

Subtracts amount from balance.

Parameters:

amount - double Amount

Returns:

double Balance

Throws: ProcessingErrorException

if Amount > Balance

 public double balance()

Returns current balance.

Returns:

double Balance

 public String accountId()

Returns account ID.

Returns:

String Account ID

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