return location.getLineNumber();
    }

    @Override
    public int getColumnNumber() {
        return location.getColumnNumber();
    }

    @Override
    public int getCharacterOffset() {
        return location.getCharacterOffset();
    }

    @Override
    public String getPublicId() {
        return location.getPublicId();
    }

    @Override
    public String getSystemId() {

     * a character media then the offset is the character offset.
     * Returns -1 if there is no offset available.
     * @return the current offset
     */
    int getCharacterOffset();

    /**
     * Returns the public ID of the XML
     * @return the public ID, or null if not available
     */
    String getPublicId();

    /**
     * Returns the system ID of the XML