ejava.examples.orm.inheritance.annotated

Class Account

java.lang.Object

ejava.examples.orm.inheritance.annotated.Account

Direct Known Subclasses:

CheckingAccount, InterestAccount

@Entity
public abstract class Account
extends Object

This class provides a base class for table-per-class inheritance strategy example. The derived classes will squash the information from this entity within their tables.

Note too that since there is no physical base table, something external must be used to create id values or allow the ids of each sub-type to be allowed to be locally generated (thus getting overlaps in id values). The approach taken here was to define a sequence generator.

Field Summary

Fields

Modifier and Type	Field and Description
private double	balance
private long	id

Constructor Summary

Constructors

Constructor and Description
Account()
Account(long id)

Method Summary

Modifier and Type	Method and Description
void	deposit(double amount)
double	getBalance()
long	getId()
void	processInterest()
void	setBalance(double balance)
String	toString()
abstract void	withdraw(double amount)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

id

private long id

balance

private double balance

Constructor Detail

Account

public Account()

Account

public Account(long id)

Method Detail

getId

public long getId()

getBalance

public double getBalance()

setBalance

public void setBalance(double balance)

deposit

public void deposit(double amount)
             throws AccountException

Throws:

AccountException

withdraw

public abstract void withdraw(double amount)
                       throws AccountException

Throws:

AccountException

processInterest

public void processInterest()

toString

public String toString()

Overrides:

toString in class Object