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# BEGIN BPS TAGGED BLOCK {{{
#
# COPYRIGHT:
#
# This software is Copyright (c) 1996-2019 Best Practical Solutions, LLC
# <sales@bestpractical.com>
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# (Except where explicitly superseded by other copyright notices)
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# LICENSE:
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# This work is made available to you under the terms of Version 2 of
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# from www.gnu.org.
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package RT::Shredder::Constants;
use strict;
use warnings;
=head1 NAME
RT::Shredder::Constants - RT::Shredder constants that is used to mark state of RT objects.
=head1 DESCRIPTION
This module contains two group of bit constants.
First group is group of flags which are used to clarify dependecies between objects, and
second group is states of RT objects in Shredder cache.
=head1 FLAGS
=head2 DEPENDS_ON
Targets that has such dependency flag set should be wiped out with base object.
=head2 WIPE_AFTER
If dependency has such flag then target object would be wiped only
after base object. You should mark dependencies with this flag
if two objects depends on each other, for example Group and Principal
have such relationship, this mean Group depends on Principal record and
that Principal record depends on the same Group record. Other examples:
User and Principal, User and its ACL equivalence group.
=head2 VARIABLE
This flag is used to mark dependencies that can be resolved with changing
value in target object. For example ticket can be created by user we can
change this reference when we delete user.
=cut
use constant {
DEPENDS_ON => 0x001,
WIPE_AFTER => 0x002,
VARIABLE => 0x004,
};
=head1 STATES
=head2 ON_STACK
Default state of object in Shredder cache that means that object is
loaded and placed into cache.
=head2 WIPED
Objects with this state are not exist any more in DB, but perl
object is still in memory. This state is used to be shure that
delete query is called once.
=cut
use constant {
ON_STACK => 0x000,
IN_WIPING => 0x010,
WIPED => 0x020,
};
1;
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