samples.j2ee.ejb.sequence.oracle
Class OracleBean

java.lang.Object
  |
  +--samples.j2ee.ejb.sequence.oracle.OracleBean

public class OracleBean

extends java.lang.Object

implements javax.ejb.EntityBean

OracleBean is an EntityBean. This EJBean illustrates:

• Container-managed JDBC persistence and transactions; the code in this file never directly accesses the data storage for storage.
• Direct access to the data storage to automatically obtain account IDs.
• Application-defined exceptions.

See Also:

Serialized Form

Field Summary

int	accountId
static int	lastKey
static int	maxKey
double	salary

Constructor Summary

OracleBean()

Method Summary

java.lang.Integer	accountId() Returns account ID.
void	ejbActivate() This method is required by the EJB Specification, but is not used by this example.
void	ejbCreate(double initialSalary) This method corresponds to the create method in the home interface "OracleHome.java".
void	ejbCreate(java.lang.Integer accountId, double initialSalary) This method corresponds to the create method in the home interface "OracleHome.java".
void	ejbLoad() This method is required by the EJB Specification, but is not used by this example.
void	ejbPassivate() This method is required by the EJB Specification, but is not used by this example.
void	ejbPostCreate(double initialSalary) This method is required by the EJB Specification, but is not used by this example.
void	ejbPostCreate(java.lang.Integer accountId, double initialSalary) This method is required by the EJB Specification, but is not used by this example.
void	ejbRemove() This method is required by the EJB Specification, but is not used by this example.
void	ejbStore() This method is required by the EJB Specification, but is not used by this example.
double	salary() Returns current salary.
void	setEntityContext(javax.ejb.EntityContext ctx) Sets the EntityContext for the EJBean.
void	unsetEntityContext() Unsets the EntityContext for the EJBean.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

accountId

public int accountId

salary

public double salary

lastKey

public static int lastKey

maxKey

public static int maxKey

Constructor Detail

OracleBean

public OracleBean()

Method Detail

ejbActivate

public void ejbActivate()

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

Specified by:

ejbActivate in interface javax.ejb.EntityBean

ejbPassivate

public void ejbPassivate()

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

Specified by:

ejbPassivate in interface javax.ejb.EntityBean

setEntityContext

public void setEntityContext(javax.ejb.EntityContext ctx)

Sets the EntityContext for the EJBean.

Specified by:

setEntityContext in interface javax.ejb.EntityBean

Parameters:

ctx - EntityContext

unsetEntityContext

public void unsetEntityContext()
                        throws java.rmi.RemoteException

Unsets the EntityContext for the EJBean.

Specified by:

unsetEntityContext in interface javax.ejb.EntityBean

ejbLoad

public void ejbLoad()

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

Specified by:

ejbLoad in interface javax.ejb.EntityBean

ejbStore

public void ejbStore()

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

Specified by:

ejbStore in interface javax.ejb.EntityBean

ejbRemove

public void ejbRemove()
               throws javax.ejb.RemoveException

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

Specified by:

ejbRemove in interface javax.ejb.EntityBean

Throws:

javax.ejb.RemoveException - if the EJBean does not allow removing the EJBean

ejbCreate

public void ejbCreate(java.lang.Integer accountId,
                      double initialSalary)
               throws javax.ejb.CreateException

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

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

Parameters:

accountID - Integer Account ID

initialSalary - double Initial salary

Throws:

javax.ejb.CreateException - if there is a problem creating the bean

ejbCreate

public void ejbCreate(double initialSalary)
               throws javax.ejb.CreateException

This method corresponds to the create method in the home interface "OracleHome.java". The parameter sets of the two methods are identical. When the client calls OracleHome.create(), the container (which in WebLogic EJB is also the home) allocates an instance of this bean and calls OracleBean.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(Integer accountId, double initialSalary), this version creates a new AccountID using getNewAccountId().

Parameters:

initialSalary - double Initial Salary

Throws:

javax.ejb.CreateException - if there is a problem getting an account ID

ejbPostCreate

public void ejbPostCreate(java.lang.Integer accountId,
                          double initialSalary)

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

Parameters:

accountID - Integer Account Identification

initialSalary - double Initial Salary

ejbPostCreate

public void ejbPostCreate(double initialSalary)

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

Parameters:

initialSalary - double Initial Salary

salary

public double salary()

Returns current salary.

Returns:

double Salary

accountId

public java.lang.Integer accountId()

Returns account ID.

Returns:

Integer Account ID