/*
* Copyright 2013 Daniel Bechler
*
* Licensed 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 de.danielbechler.diff.example;
import de.danielbechler.diff.ObjectDifferBuilder;
import de.danielbechler.diff.node.DiffNode;
/**
* @author Daniel Bechler
*/
public class RuntimeTypeResolutionExample
{
private RuntimeTypeResolutionExample()
{
}
public static class Coordinate
{
private final long x;
private final long y;
public Coordinate(final long x, final long y)
{
this.x = x;
this.y = y;
}
public long getX()
{
return x;
}
public long getY()
{
return y;
}
}
public static class Coordinate3D extends Coordinate
{
private final long z;
public Coordinate3D(final long x, final long y, final long z)
{
super(x, y);
this.z = z;
}
public long getZ()
{
return z;
}
}
public static class Point
{
private final Coordinate coordinate;
public Point(final Coordinate coordinate)
{
this.coordinate = coordinate;
}
public Coordinate getCoordinate()
{
return coordinate;
}
}
public static void main(final String[] args)
{
final Point base = new Point(new Coordinate3D(1, 2, 3));
final Point working = new Point(new Coordinate3D(1, 2, 30));
final DiffNode node = ObjectDifferBuilder.buildDefault().compare(working, base);
assert node.getChild("coordinate").getChild("z").isChanged() :
"The changed 'z' coordinate should have been detected because the property type should be resolved to Coordinate3D at runtime.";
}
}