/*
* (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
*
* 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.
*
* Contributors:
* bstefanescu
*
* $Id$
*/
package org.nuxeo.ecm.core.api.model;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
/**
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> TODO is this really needed?
*/
public class PropertyDiff implements Iterable<PropertyDiff> {
public static final int MODIFIED = 1;
public static final int ADDED = 2;
public static final int REMOVED = 3;
public int type;
public Serializable value;
public String name;
public final Set<PropertyDiff> children;
public PropertyDiff(int type, String name) {
this(type, name, null);
}
// FIXME: not fully implemented
public PropertyDiff(int type, String name, Serializable value) {
children = new HashSet<PropertyDiff>();
}
public boolean hasChildren() {
return !children.isEmpty();
}
public void modify(String name, Serializable value) {
children.add(new PropertyDiff(MODIFIED, name, value));
}
public void remove(String name) {
children.add(new PropertyDiff(REMOVED, name));
}
public void add(String name, Serializable value) {
children.add(new PropertyDiff(ADDED, name, value));
}
@Override
public Iterator<PropertyDiff> iterator() {
return children.iterator();
}
@Override
public boolean equals(Object obj) {
if (obj instanceof PropertyDiff) {
return name.equals(((PropertyDiff) obj).name);
}
return false;
}
@Override
public int hashCode() {
return (name == null) ? 0 : name.hashCode();
}
}