#ifndef DOMLocator_HEADER_GUARD_

#define DOMLocator_HEADER_GUARD_

/*

 * 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.

 */

/*

 * $Id: DOMLocator.hpp 568078 2007-08-21 11:43:25Z amassari $

 */

#include <xercesc/util/XercesDefs.hpp>

XERCES_CPP_NAMESPACE_BEGIN

class DOMNode;

/**

  * DOMLocator is an interface that describes a location. (e.g. where an error

  * occured).

  *

  * @see DOMError#DOMError

  * @since DOM Level 3

  */

class CDOM_EXPORT DOMLocator

{

protected:

    // -----------------------------------------------------------------------

    //  Hidden constructors

    // -----------------------------------------------------------------------

    /** @name Hidden constructors */

    //@{    

    DOMLocator() {};

    //@}

private:    

    // -----------------------------------------------------------------------

    // Unimplemented constructors and operators

    // -----------------------------------------------------------------------

    /** @name Unimplemented constructors and operators */

    //@{

    DOMLocator(const DOMLocator &);

    DOMLocator & operator = (const DOMLocator &);

    //@}

public:

    // -----------------------------------------------------------------------

    //  All constructors are hidden, just the destructor is available

    // -----------------------------------------------------------------------

    /** @name Destructor */

    //@{

    /**

     * Destructor

     *

     */

    virtual ~DOMLocator() {};

    //@}

    // -----------------------------------------------------------------------

    //  Virtual DOMLocator interface

    // -----------------------------------------------------------------------

    /** @name Functions introduced in DOM Level 3 */

    //@{

    // -----------------------------------------------------------------------

    //  Getter methods

    // -----------------------------------------------------------------------

    /**

     * Get the line number where the error occured. The value is -1 if there is

     * no line number available.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @see #setLineNumber

     * @since DOM Level 3

     */

    virtual XMLSSize_t getLineNumber() const = 0;

    /**

     * Get the column number where the error occured. The value is -1 if there

     * is no column number available.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @see #setColumnNumber

     * @since DOM Level 3

     */

    virtual XMLSSize_t getColumnNumber() const = 0;

    /**

     * Get the byte or character offset into the input source, if we're parsing

     * a file or a byte stream then this will be the byte offset into that

     * stream, but if a character media is parsed then the offset will be the

     * character offset. The value is -1 if there is no offset available.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @see #setOffset

     * @since DOM Level 3

     */

    virtual XMLSSize_t getOffset() const = 0;

    /**

     * Get the DOMNode where the error occured, or <code>null</code> if there

     * is no node available.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @see #setErrorNode

     * @since DOM Level 3

     */

    virtual DOMNode* getErrorNode() const = 0;

    /**

     * Get the URI where the error occured, or <code>null</code> if there is no

     * URI available.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @see #setURI

     * @since DOM Level 3

     */

    virtual const XMLCh* getURI() const = 0;

    // -----------------------------------------------------------------------

    //  Setter methods

    // -----------------------------------------------------------------------

    /**

     * Set the line number of the error

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @param lineNumber the line number to set

     *

     * @see #getLinNumner

     * @since DOM Level 3

     */

    virtual void setLineNumber(const XMLSSize_t lineNumber) = 0;

    /**

     * Set the column number of the error

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @param columnNumber the column number to set.

     *

     * @see #getColumnNumner

     * @since DOM Level 3

     */

    virtual void setColumnNumber(const XMLSSize_t columnNumber) = 0;

    /**

     * Set the byte/character offset.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @param offset the byte/characte offset to set.

     *

     * @see #getOffset

     * @since DOM Level 3

     */

    virtual void setOffset(const XMLSSize_t offset) = 0;

    /**

     * Set the DOMNode where the error occured

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @param errorNode the DOMNode to set

     *

     * @see #getErrorNode

     * @since DOM Level 3

     */

    virtual void setErrorNode(DOMNode* const errorNode) = 0;

    /**

     * Set the URI where the error occured

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @param uri the URI to set.

     *

     * @see #getURI

     * @since DOM Level 3

     */

    virtual void setURI(const XMLCh* const uri) = 0;

    //@}

};

XERCES_CPP_NAMESPACE_END

#endif