cardholderbean.java

我在加拿大学习的一个比较复杂的在线银行程序.

package com.ebusiness.ebank.ejb.entitybean;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: eBusiness Inc., All right reserved</p>
 * @author unascribed
 * @version 1.0
 */

import java.util.Collection;
import java.util.Iterator;
import java.sql.Timestamp;
import javax.ejb.EntityBean;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.FinderException;
import javax.ejb.EntityContext;

import com.ebusiness.ebank.exception.BusinessException;
import com.ebusiness.ebank.exception.SystemException;
import com.ebusiness.ebank.exception.ErrorMessages;
import com.ebusiness.ebank.bean.CardholderValue;
import com.ebusiness.ebank.bean.AddressValue;
import com.ebusiness.ebank.bean.ClientCardValue;
import com.ebusiness.ebank.servicedelegate.ServiceLocator;
import com.ebusiness.ebank.servicedelegate.ServiceLocatorException;
import com.ebusiness.ebank.util.Constants;

abstract public class CardholderBean implements EntityBean
{
    private EntityContext ctx;

    private static final String INSERT = "INSERT";
    private static final String UPDATE = "UPDATE";
    private static final String DELETE = "DELETE";

    //Bean attribute accessor
    abstract public Long getObjectID();
    abstract public void setObjectID(Long oid);
    abstract public String getSin();
    abstract public void setSin(String sin);
    abstract public String getFirstName();
    abstract public void setFirstName(String firstName);
    abstract public String getLastName();
    abstract public void setLastName(String lastName);

    abstract public String getMotherMaidenName();
    abstract public void setMotherMaidenName(String maidenName);
    abstract public String getGender();
    abstract public void setGender(String gender);
    abstract public Timestamp getDateOfBirth();
    abstract public void setDateOfBirth(Timestamp dob);
    abstract public String getMaritalStatus();
    abstract public void setMaritalStatus(String maritalStatus);
    abstract public String getEmploymentStatus();
    abstract public void setEmploymentStatus(String employmentStatus);
    abstract public String getSalary();
    abstract public void setSalary(String salary);
    abstract public Timestamp getEnrollmentDate();
    abstract public void setEnrollmentDate(Timestamp enrollmentDate);
    abstract public String getHomePhone();
    abstract public void setHomePhone(String homePhone);
    abstract public String getCellPhone();
    abstract public void setCellPhone(String cellPhone);
    abstract public String getBusinessPhone();
    abstract public void setBusinessPhone(String businessPhone);
    abstract public String getEmails();
    abstract public void setEmails(String emails);
    abstract public String getStatus();
    abstract public void setStatus(String status);

    abstract public Timestamp getEffectiveDate();
    abstract public void setEffectiveDate(Timestamp effectiveDate);
    abstract public Timestamp getExpiryDate();
    abstract public void setExpiryDate(Timestamp expiryDate);

    public abstract Collection getAddresses();
    public abstract void setAddresses(Collection addresses);

    abstract public String getCreateUserID();
    abstract public void setCreateUserID(String createUserID);
    abstract public Timestamp getCreateDate();
    abstract public void setCreateDate(Timestamp createDate);
    abstract public String getUpdateUserID();
    abstract public void setUpdateUserID(String updateUserID);
    abstract public Timestamp getUpdateDate();
    abstract public void setUpdateDate(Timestamp expiryDate);
    abstract public String getAction();
    abstract public void setAction(String action);

    // Business methods

    /**
     * Parse the entity bean value to CardholderValue object
     *
     * @return CardholderValue
     */
    public CardholderValue getValueObject()
    {
        CardholderValue value = new CardholderValue(this.getObjectID().longValue());

        value.setSIN(this.getSin());
        value.setFirstName(this.getFirstName());
        value.setLastName(this.getLastName());
        value.setMotherMaidenName(this.getMotherMaidenName());
        value.setGender(this.getGender());
        value.setDateOfBirth(this.getDateOfBirth());
        value.setMaritalStatus(this.getMaritalStatus());
        value.setEmploymentStatus(this.getEmploymentStatus());
        value.setSalary(this.getSalary());
        value.setEnrollmentDate(this.getEnrollmentDate());
        value.setHomePhone(this.getHomePhone());
        value.setCellPhone(this.getCellPhone());
        value.setBusinessPhone(this.getBusinessPhone());
        value.setEmails(this.getEmails());
        value.setStatus(this.getStatus());

        //get addresses values and add them to CardholderValue
        Collection addresses = this.getAddresses();
        for (Iterator iterator = addresses.iterator(); iterator.hasNext();) {
            AddressLocal addressLocal = (AddressLocal) iterator.next();
            value.addAddress(addressLocal.getValueObject());
            //value.addAddress(addressLocal.getLiteValueObject());
        }

        //common values
        value.setEffectiveDate(this.getEffectiveDate());
        value.setExpiryDate(this.getExpiryDate());
        value.setCreateUserID(this.getCreateUserID());
        value.setCreateDate(this.getCreateDate());
        value.setUpdateUserID(this.getUpdateUserID());
        value.setUpdateDate(this.getUpdateDate());
        value.setAction(this.getAction());
        return value;
    }

    public void updateStatus(String status)
    {
        this.setStatus(status);
        this.setUpdateUserID(ctx.getCallerPrincipal().getName());
    }

    //Add a new address to Cardholder
    private void addAddress(AddressLocal address){
            getAddresses().add(address);
    }

    /**
     * Update addDelFlag field and replace the process date and time with current date and time.
     *
     * @param value :    CardholderValue
     * @return      :    updated CardholderValue
     */
    public CardholderValue update(CardholderValue value)
    {
        this.setSin(value.getSIN());
        this.setFirstName(value.getFirstName());
        this.setLastName(value.getLastName());
        this.setMotherMaidenName(value.getMotherMaidenName());
        this.setGender(value.getGender());
        this.setDateOfBirth(value.getDateOfBirth());
        this.setMaritalStatus(value.getMaritalStatus());
        this.setEmploymentStatus(value.getEmploymentStatus());
        this.setSalary(value.getSalary());
        this.setEnrollmentDate(value.getEnrollmentDate());
        this.setHomePhone(value.getHomePhone());
        this.setCellPhone(value.getCellPhone());
        this.setBusinessPhone(value.getBusinessPhone());
        this.setEmails(value.getEmails());
        this.setStatus(value.getStatus());

        this.setUpdateUserID(this.ctx.getCallerPrincipal().getName());

        return this.getValueObject();
    }

    // Framework and lifecycle methods

    /**
     * This method will insert a record to the Cardholder table.
     * The method should be called within Cardholder Entity Bean since the Cardholder
     * must have a valid cardholder
     */
    public Long ejbCreate(CardholderValue value)
         throws CreateException
    {
        this.setSin(value.getSIN());
        this.setFirstName(value.getFirstName());
        this.setLastName(value.getLastName());
        this.setMotherMaidenName(value.getMotherMaidenName());
        this.setGender(value.getGender());
        this.setDateOfBirth(value.getDateOfBirth());
        this.setMaritalStatus(value.getMaritalStatus());
        this.setEmploymentStatus(value.getEmploymentStatus());
        this.setSalary(value.getSalary());
        this.setEnrollmentDate(value.getEnrollmentDate());
        this.setHomePhone(value.getHomePhone());
        this.setCellPhone(value.getCellPhone());
        this.setBusinessPhone(value.getBusinessPhone());
        this.setEmails(value.getEmails());
        this.setStatus(value.getStatus());

        String userID = this.ctx.getCallerPrincipal().getName();

        this.setEffectiveDate(value.getEffectiveDate());
        this.setExpiryDate(value.getExpiryDate());
        this.setCreateUserID(userID);
        this.setUpdateUserID(userID);

        return null; //for container managed persistence
    }

    //Cardholder ObjectID is not ready yet in ejbCreate() method. So the addresses must
    //be saved in ejbPostCreate() method
    public void ejbPostCreate(CardholderValue value) throws CreateException, BusinessException
    {
        AddressLocalHome addressHome;
        Collection addresses = value.getAddresses();
        Iterator it = addresses.iterator();
        AddressLocal addressLocal;
        AddressValue address;
        try
        {
           addressHome = (AddressLocalHome)ServiceLocator.getInstance().getLocalHome(Constants.ADDRESS_LOCALHOME);
        }
        catch(ServiceLocatorException ne)
        {
           throw new CreateException(ErrorMessages.FAIL_TO_LOOKUP_LOCALHOME + " - " + Constants.ADDRESS_LOCALHOME);
        }
        while((it != null) && (it.hasNext()))
        {
             address = (AddressValue) it.next();
             address.setCardholderOID(this.getObjectID().longValue()); //set cardholderOID for this address
             addressLocal = (AddressLocal)addressHome.create(address);
             this.addAddress(addressLocal);
        }
    }

    public void ejbActivate() {}

    public void ejbLoad() {}

    public void ejbPassivate() {}

    public void ejbRemove() //this method will delete the record from database
    {
        this.setUpdateUserID(this.ctx.getCallerPrincipal().getName());
        this.setAction(this.DELETE);
    }

    public void ejbStore() {}

    public void setEntityContext(EntityContext ctx)
    {
        this.ctx = ctx;
    }

    public void unsetEntityContext()
    {
        this.ctx = null;
    }
}