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	/*
	* reserved comment block
	* DO NOT REMOVE OR ALTER!
	*/
	/*
	* 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 com.sun.org.apache.xerces.internal.impl.xs.opti;

	import org.w3c.dom.Attr;
	import org.w3c.dom.Document;
	import org.w3c.dom.NamedNodeMap;
	import org.w3c.dom.Node;

	/**
	* @xerces.internal
	*
	* @author Rahul Srivastava, Sun Microsystems Inc.
	* @author Sandy Gao, IBM
	*
	*/
	public class ElementImpl extends DefaultElement {

	SchemaDOM schemaDOM;
	Attr[] attrs;
	int row;
	int col;
	int parentRow;

	int line;
	int column;
	int charOffset;
	String fAnnotation;
	String fSyntheticAnnotation;

	public ElementImpl(int line, int column, int offset) {
	row = -1;
	col = -1;
	parentRow = -1;
	nodeType = Node.ELEMENT_NODE;

	this.line = line;
	this.column = column;
	charOffset = offset;
	}

	public ElementImpl(int line, int column) {
	this(line, column, -1);
	}


	public ElementImpl(String prefix, String localpart, String rawname,
	String uri, int line, int column, int offset) {
	super(prefix, localpart, rawname, uri, Node.ELEMENT_NODE);
	row = -1;
	col = -1;
	parentRow = -1;

	this.line = line;
	this.column = column;
	charOffset = offset;
	}

	public ElementImpl(String prefix, String localpart, String rawname,
	String uri, int line, int column) {
	this(prefix, localpart, rawname, uri, line, column, -1);
	}


	//
	// org.w3c.dom.Node methods
	//

	public Document getOwnerDocument() {
	return schemaDOM;
	}


	public Node getParentNode() {
	return schemaDOM.relations[row][0];
	}


	public boolean hasChildNodes() {
	if (parentRow == -1) {
	return false;
	}
	else {
	return true;
	}
	}


	public Node getFirstChild() {
	if (parentRow == -1) {
	return null;
	}
	return schemaDOM.relations[parentRow][1];
	}


	public Node getLastChild() {
	if (parentRow == -1) {
	return null;
	}
	int i=1;
	for (; i<schemaDOM.relations[parentRow].length; i++) {
	if (schemaDOM.relations[parentRow][i] == null) {
	return schemaDOM.relations[parentRow][i-1];
	}
	}
	if (i ==1) {
	i++;
	}
	return schemaDOM.relations[parentRow][i-1];
	}


	public Node getPreviousSibling() {
	if (col == 1) {
	return null;
	}
	return schemaDOM.relations[row][col-1];
	}


	public Node getNextSibling() {
	if (col == schemaDOM.relations[row].length-1) {
	return null;
	}
	return schemaDOM.relations[row][col+1];
	}


	public NamedNodeMap getAttributes() {
	return new NamedNodeMapImpl(attrs);
	}


	public boolean hasAttributes() {
	return (attrs.length == 0 ? false : true);
	}



	//
	// org.w3c.dom.Element methods
	//

	public String getTagName() {
	return rawname;
	}


	public String getAttribute(String name) {

	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getName().equals(name)) {
	return attrs[i].getValue();
	}
	}
	return "";
	}


	public Attr getAttributeNode(String name) {
	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getName().equals(name)) {
	return attrs[i];
	}
	}
	return null;
	}


	public String getAttributeNS(String namespaceURI, String localName) {
	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getLocalName().equals(localName) && nsEquals(attrs[i].getNamespaceURI(), namespaceURI)) {
	return attrs[i].getValue();
	}
	}
	return "";
	}


	public Attr getAttributeNodeNS(String namespaceURI, String localName) {
	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getName().equals(localName) && nsEquals(attrs[i].getNamespaceURI(), namespaceURI)) {
	return attrs[i];
	}
	}
	return null;
	}


	public boolean hasAttribute(String name) {
	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getName().equals(name)) {
	return true;
	}
	}
	return false;
	}


	public boolean hasAttributeNS(String namespaceURI, String localName) {
	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getName().equals(localName) && nsEquals(attrs[i].getNamespaceURI(), namespaceURI)) {
	return true;
	}
	}
	return false;
	}


	public void setAttribute(String name, String value) {
	for (int i=0; i<attrs.length; i++) {
	if (attrs[i].getName().equals(name)) {
	attrs[i].setValue(value);
	return;
	}
	}
	}

	/** Returns the line number. */
	public int getLineNumber() {
	return line;
	}

	/** Returns the column number. */
	public int getColumnNumber() {
	return column;
	}

	/** Returns the character offset. */
	public int getCharacterOffset() {
	return charOffset;
	}

	public String getAnnotation() {
	return fAnnotation;
	}

	public String getSyntheticAnnotation() {
	return fSyntheticAnnotation;
	}

	/**
	* Compares two namespace URIs with an extra case for null entries
	*/
	private static boolean nsEquals(String nsURI_1, String nsURI_2) {
	if (nsURI_1 == null) {
	return (nsURI_2 == null);
	}
	else {
	return nsURI_1.equals(nsURI_2);
	}
	}

	}

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