ExpenseReport.java

package org.richfaces.demo.tables.model.expenses;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class ExpenseReport {
    private List<ExpenseReportRecord> records = null;

    public List<ExpenseReportRecord> getRecords() {
        if (records == null) {
            initRecords();
        }
        return records;
    }

    public void setRecords(List<ExpenseReportRecord> records) {
        this.records = records;
    }

    public double getTotalMeals() {
        double ret = 0.0;
        Iterator<ExpenseReportRecord> it = getRecords().iterator();
        while (it.hasNext()) {
            ExpenseReportRecord record = (ExpenseReportRecord) it.next();
            ret += record.getTotalMeals();
        }
        return ret;
    }

    public double getTotalHotels() {
        double ret = 0.0;
        Iterator<ExpenseReportRecord> it = getRecords().iterator();
        while (it.hasNext()) {
            ExpenseReportRecord record = (ExpenseReportRecord) it.next();
            ret += record.getTotalHotels();
        }
        return ret;
    }

    public double getTotalTransport() {
        double ret = 0.0;
        Iterator<ExpenseReportRecord> it = getRecords().iterator();
        while (it.hasNext()) {
            ExpenseReportRecord record = (ExpenseReportRecord) it.next();
            ret += record.getTotalTransport();
        }
        return ret;
    }

    public double getGrandTotal() {
        return getTotalMeals() + getTotalHotels() + getTotalTransport();
    }

    public int getRecordsCount() {
        return getRecords().size();
    }

    private void initRecords() {
        records = new ArrayList<ExpenseReportRecord>();
        ExpenseReportRecord rec;
        rec = new ExpenseReportRecord();
        rec.setCity("San Jose");
        rec.getItems().add(new ExpenseReportRecordItem("25-Aug-97", 37.74, 112.0, 45.0, "San Jose"));
        rec.getItems().add(new ExpenseReportRecordItem("26-Aug-97", 27.28, 112.0, 45.0, "San Jose"));
        records.add(rec);
        rec = new ExpenseReportRecord();
        rec.setCity("Seattle");
        rec.getItems().add(new ExpenseReportRecordItem("27-Aug-97", 96.25, 109.0, 36.00, "Seattle"));
        rec.getItems().add(new ExpenseReportRecordItem("28-Aug-97", 35.0, 109.0, 36.0, "Seattle"));
        records.add(rec);
    }
}