org.apache.harmony.xml.dom.LeafNodeImpl Maven / Gradle / Ivy
/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 org.apache.harmony.xml.dom;
import org.w3c.dom.Node;
/**
* Provides a straightforward implementation of the corresponding W3C DOM
* interface. The class is used internally only, thus only notable members that
* are not in the original interface are documented (the W3C docs are quite
* extensive). Hope that's ok.
*
* Some of the fields may have package visibility, so other classes belonging to
* the DOM implementation can easily access them while maintaining the DOM tree
* structure.
*
* This class represents a Node that has a parent Node, but no children.
*/
public abstract class LeafNodeImpl extends NodeImpl {
// Maintained by InnerNodeImpl.
InnerNodeImpl parent;
// Maintained by InnerNodeImpl.
int index;
LeafNodeImpl(DocumentImpl document) {
super(document);
}
public Node getNextSibling() {
if (parent == null || index + 1 >= parent.children.size()) {
return null;
}
return parent.children.get(index + 1);
}
public Node getParentNode() {
return parent;
}
public Node getPreviousSibling() {
if (parent == null || index == 0) {
return null;
}
return parent.children.get(index - 1);
}
boolean isParentOf(Node node) {
return false;
}
}