/*
* 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.isis.core.runtime.snapshot;
import org.w3c.dom.Element;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
/**
* Represents a place in the graph to be navigated; really just wraps an object
* and an XML Element in its XML document. Also provides the capability to
* extract the corresponding XSD element (associated with each XML element).
*
* The XML element (its children) is mutated as the graph of objects is
* navigated.
*/
final class Place {
private static final String USER_DATA_XSD_KEY = "XSD";
private final ObjectAdapter object;
private final Element element;
Place(final ObjectAdapter object, final Element element) {
this.object = object;
this.element = element;
}
public Element getXmlElement() {
return element;
}
public ObjectAdapter getObject() {
return object;
}
public Element getXsdElement() {
final Object o = element.getUserData(USER_DATA_XSD_KEY);
if (o == null || !(o instanceof Element)) {
return null;
}
return (Element) o;
}
// TODO: smelly; where should this responsibility lie?
static void setXsdElement(final Element element, final Element xsElement) {
element.setUserData(USER_DATA_XSD_KEY, xsElement, null);
}
}