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/*
 * Copyright 2003-2019 MarkLogic Corporation
 *
 * 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 com.marklogic.dom;

import org.w3c.dom.Comment;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;

import com.marklogic.tree.ExpandedTree;

/**
 * A read-only W3C DOM Node implementation of MarkLogic's internal
 * representation of an XML comment as stored in the expanded tree cache of a
 * forest on disk.
 * 
 * 
 * This interface is effectively read-only: Setters and update methods inherited
 * from org.w3c.Node are not supported and will raise an exception
 * if called.
 * 
 * \
 * @author jchen
 */
public class CommentImpl extends CharacterDataImpl implements Comment {

    public CommentImpl(ExpandedTree tree, int node) {
        super(tree, node);
    }

    protected Node cloneNode(Document doc, boolean deep) {
        return doc.createComment(getData());
    }

    /** {@inheritDoc} */
    @Override
    public String getNodeName() {
        return "#comment";
    }

    /** {@inheritDoc} */
    @Override
    public String getTextContent() throws DOMException {
        return getNodeValue();
    }
    
    /** {@inheritDoc} */
    @Override
    public String lookupPrefix(String namespaceURI) {
    	return getParentNode().lookupPrefix(namespaceURI);
    }
    
    /** {@inheritDoc} */
    @Override
    public String lookupNamespaceURI(String prefix) {
    	return getParentNode().lookupNamespaceURI(prefix);
    }
}