JavaServer Faces

The ReportEntry Class

The com.mycompany.expense.ReportEntry class, shown in Example 5-1, is a simple bean, with properties for all expense report entry items—the date, the expense type, and the amount—plus the entry’s ID, unique within a Report.

Example 5-1. The ReportEntry class

package com.mycompany.expense;

import java.io.Serializable;
import java.util.Date;

public class ReportEntry implements Serializable {
    private int id = -1;
    private Date date;
    private int type;
    private double amount;

    public ReportEntry( ) {
    }

    public ReportEntry(ReportEntry src) {
        this.setId(src.getId( ));
        this.setDate(src.getDate( ));
        this.setType(src.getType( ));
        this.setAmount(src.getAmount( ));
    }

    public int getId( ) {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public Date getDate( ) {
        if (date == null) {
            date = new Date( );
        }
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public int getType( ) {
        return type;
    }

    public void setType(int type) {
        this.type = type;
    }

    public double getAmount( ) {
        return amount;
    }

    public void setAmount(double amount) {
        this.amount = amount;
    }

    public String toString( ) {
        return "id: " + id + " date: " + date + " type: " + type + 
            " amount: " + amount;
    }
}

Each property is represented by standard JavaBeans accessor methods: getId() and setId(), getDate() and setDate(), getType() and setType(), and getAmount() and setAmount(). The ReportEntry class also has a copy constructor, i.e., a constructor that initializes the new instance’s properties to the ...