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ODFDOM is an OpenDocument Format (ODF) framework. Its purpose is to provide an easy common way to create, access and manipulate ODF files, without requiring detailed knowledge of the ODF specification. It is designed to provide the ODF developer community with an easy lightwork programming API portable to any object-oriented language. The current reference implementation is written in Java.

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/************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 * 
 * Copyright 2008, 2010 Oracle and/or its affiliates. All rights reserved.
 * 
 * Use is subject to license terms.
 * 
 * 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. You can also
 * obtain a copy of the License at http://odftoolkit.org/docs/license.txt
 * 
 * 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.odftoolkit.odfdom.pkg;

import org.apache.xerces.dom.AttrNSImpl;
import org.odftoolkit.odfdom.pkg.OdfFileDom;
import org.w3c.dom.DOMException;

/**
 * Base class for all attributes of the OpenDocument format
 */
abstract public class OdfAttribute extends AttrNSImpl {

   /**
    * Returns the attribute name.
    *
    * @return the OdfName for the attribute.
    */
   abstract public OdfName getOdfName();

   /** Creates a new instance of OdfAttribute
    * @param ownerDocument - the document the attribute belongs to
    * @param namespaceURI - The namespace URI of the attribute to create. When it is null or an empty string, this method behaves like createAttribute.
    * @param qualifiedName - The qualified name of the attribute to instantiate.
    * @throws DOMException - if the attribute could not be created
    */
   public OdfAttribute(OdfFileDom ownerDocument,
           String namespaceURI,
           String qualifiedName) throws DOMException {
       super(ownerDocument, namespaceURI, qualifiedName);
   }

   /** Creates a new instance of OdfAttribute
    * @param ownerDocument - the document the attribute belongs to
    * @param name - the OdfName representation of the attribute name.
    * @throws DOMException - if the attribute could not be created
    */
   public OdfAttribute(OdfFileDom ownerDocument,
           OdfName name) throws DOMException {
       super(ownerDocument, name.getUri(), name.getQName());
   }
   
   /**
	 * Returns the default value of {@odf.attribute table:number-columns-repeated}.
	 * 
	 * @return the default value as String
	 */
	abstract public String getDefault();

	/**
	 * Default value indicator
	 * 
	 * @return true if a default exists
	 */
	abstract public boolean hasDefault();
}