#!/usr/bin/perl
#
# $Header: /Users/claude/fuzz/lib/Genezzo/XEval/RCS/SQLAlter.pm,v 7.1 2005/07/19 07:49:03 claude Exp claude $
#
# copyright (c) 2005 Jeffrey I Cohen, all rights reserved, worldwide
#
#
package Genezzo::XEval::SQLAlter;
use Genezzo::Util;

use strict;
use warnings;
use warnings::register;

use Carp;

our $VERSION;

BEGIN {
    $VERSION = do { my @r = (q$Revision: 7.1 $ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r }; # must be all one line, for MakeMaker

}

our $GZERR = sub {
    my %args = (@_);

    return 
        unless (exists($args{msg}));

    if (exists($args{self}))
    {
        my $self = $args{self};
        if (defined($self) && exists($self->{GZERR}))
        {
            my $err_cb = $self->{GZERR};
            return &$err_cb(%args);
        }
    }

    carp $args{msg}
        if warnings::enabled();
    
};

sub _init
{
    my $self = shift;
    my %args = @_;


    return 1;

}


sub new 
{
#    whoami;
    my $invocant = shift;
    my $class = ref($invocant) || $invocant ; 
    my $self = { };
    
    my %args = (@_);

    if ((exists($args{GZERR}))
        && (defined($args{GZERR}))
        && (length($args{GZERR})))
    {
        # NOTE: don't supply our GZERR here - will get
        # recursive failure...
        $self->{GZERR} = $args{GZERR};
        my $err_cb     = $self->{GZERR};
        # capture all standard error messages
        $Genezzo::Util::UTIL_EPRINT = 
            sub {
                &$err_cb(self     => $self,
                         severity => 'error',
                         msg      => @_); };
        
        $Genezzo::Util::WHISPER_PRINT = 
            sub {
                &$err_cb(self     => $self,
#                         severity => 'error',
                         msg      => @_); };
    }

    return undef
        unless (_init($self, %args));

    return bless $self, $class;

} # end new





END { }       # module clean-up code here (global destructor)

## YOUR CODE GOES HERE

1;  # don't forget to return a true value from the file

__END__
# Below is stub documentation for your module. You better edit it!

=head1 NAME

Genezzo::XEval::SQLAlter - perform DDL ALTER

=head1 SYNOPSIS

use Genezzo::XEval::SQLAlter


=head1 DESCRIPTION


=head1 ARGUMENTS

=head1 FUNCTIONS

=over 4

=item Convert

=back

=head2 EXPORT

=over 4


=back


=head1 LIMITATIONS


=head1 TODO

=over 4

=item drop constraint


=back

=head1 AUTHOR

Jeffrey I. Cohen, jcohen@genezzo.com

=head1 SEE ALSO

L<perl(1)>.

Copyright (c) 2005 Jeffrey I Cohen.  All rights reserved.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

Address bug reports and comments to: jcohen@genezzo.com

For more information, please visit the Genezzo homepage 
at L<http://www.genezzo.com>

=cut