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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.examples.listexample;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
public class PagedSortableCarList extends SortableList
{
private List cars = new ArrayList();
private Map carMap = new HashMap();
public PagedSortableCarList()
{
super("type");
for (int i = 100; i < 900; i++)
{
Object car = new SimpleCar(i, "Car Type " + i, (i % 2 == 0) ? "blue" : "green");
cars.add(car);
carMap.put(new Integer(i), car);
}
}
public List getCars()
{
sort(getSort(), isAscending());
return cars;
}
public void setCars(List cars)
{
// update the cars from the provided list
for (Iterator iter = cars.iterator(); iter.hasNext();)
{
SimpleCar car = (SimpleCar) iter.next();
SimpleCar oldCar = (SimpleCar) carMap.get(new Integer(car.getId()));
oldCar.setType(car.getType());
oldCar.setColor(car.getColor());
}
}
protected boolean isDefaultAscending(String sortColumn)
{
return true;
}
protected void sort(final String column, final boolean ascending)
{
Comparator comparator = new Comparator()
{
public int compare(Object o1, Object o2)
{
SimpleCar c1 = (SimpleCar) o1;
SimpleCar c2 = (SimpleCar) o2;
if (column == null)
{
return 0;
}
if (column.equals("type"))
{
return ascending ? c1.getType().compareTo(c2.getType()) : c2.getType()
.compareTo(c1.getType());
}
else if (column.equals("color"))
{
return ascending ? c1.getColor().compareTo(c2.getColor()) : c2.getColor()
.compareTo(c1.getColor());
}
else
return 0;
}
};
Collections.sort(cars, comparator);
}
} |
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