/*
 * The Apache Software License, Version 1.1
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 * Copyright (c) 1999, 2000 The Apache Software Foundation.  All rights
 * reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    distribution.
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 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
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 * 4. The names "Xerces" and "Apache Software Foundation" must
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 * 5. Products derived from this software may not be called "Apache",
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 *
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package dom;

import org.w3c.dom.Document;
import org.w3c.dom.Text;

import org.xml.sax.InputSource;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;

/**
 * Encapsulates a DOM parser.
 *
 * @version $id$ ParserWrapper.java,v 1.3 2002/01/29 01:15:05 lehors Exp $
 */

public interface DOMParserWrapper {

    //
    // DOMParserWrapper methods
    //

    /** Parses the specified URI and returns the document. */
    public Document parse(String uri) throws Exception;

    /** Parses the InputSource and returns the document. */
    public Document parse(InputSource src) throws Exception;

  /**
   * Set the state of a feature.
   *
   * Set the state of any feature in a SAX2 parser.  The parser
   * might not recognize the feature, and if it does recognize
   * it, it might not be able to fulfill the request.
   *
   * @param featureId The unique identifier (URI) of the feature.
   * @param state The requested state of the feature (true or false).
   *
   * @exception org.xml.sax.SAXNotRecognizedException If the
   *            requested feature is not known.
   * @exception org.xml.sax.SAXNotSupportedException If the
   *            requested feature is known, but the requested
   *            state is not supported.
   * @exception org.xml.sax.SAXException If there is any other
   *            problem fulfilling the request.
   */

    public void  setFeature(String featureId, boolean state)
        throws  SAXNotRecognizedException, SAXNotSupportedException;

    /** Returns the document information. */
    public DocumentInfo getDocumentInfo();

    //
    // Interfaces
    //

    /**
     * This interface is here to query information about the document
     * implementation returned by the <code>ParserWrapper#parse</code>
     * method.
     *
     * @author Andy Clark, IBM
     */
    public interface DocumentInfo {

        //
        // DocumentInfo methods
        //

        /**
         * Returns true if the specified text node is ignorable whitespace.
         */
        public boolean isIgnorableWhitespace(Text text);

    } // interface DocumentInfo
} // interface DOMParserWrapper