]>
Commit | Line | Data |
---|---|---|
84fb5b46 MKG |
1 | # BEGIN BPS TAGGED BLOCK {{{ |
2 | # | |
3 | # COPYRIGHT: | |
4 | # | |
5 | # This software is Copyright (c) 1996-2012 Best Practical Solutions, LLC | |
6 | # <sales@bestpractical.com> | |
7 | # | |
8 | # (Except where explicitly superseded by other copyright notices) | |
9 | # | |
10 | # | |
11 | # LICENSE: | |
12 | # | |
13 | # This work is made available to you under the terms of Version 2 of | |
14 | # the GNU General Public License. A copy of that license should have | |
15 | # been provided with this software, but in any event can be snarfed | |
16 | # from www.gnu.org. | |
17 | # | |
18 | # This work is distributed in the hope that it will be useful, but | |
19 | # WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 | # General Public License for more details. | |
22 | # | |
23 | # You should have received a copy of the GNU General Public License | |
24 | # along with this program; if not, write to the Free Software | |
25 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
26 | # 02110-1301 or visit their web page on the internet at | |
27 | # http://www.gnu.org/licenses/old-licenses/gpl-2.0.html. | |
28 | # | |
29 | # | |
30 | # CONTRIBUTION SUBMISSION POLICY: | |
31 | # | |
32 | # (The following paragraph is not intended to limit the rights granted | |
33 | # to you to modify and distribute this software under the terms of | |
34 | # the GNU General Public License and is only of importance to you if | |
35 | # you choose to contribute your changes and enhancements to the | |
36 | # community by submitting them to Best Practical Solutions, LLC.) | |
37 | # | |
38 | # By intentionally submitting any modifications, corrections or | |
39 | # derivatives to this work, or any other work intended for use with | |
40 | # Request Tracker, to Best Practical Solutions, LLC, you confirm that | |
41 | # you are the copyright holder for those contributions and you grant | |
42 | # Best Practical Solutions, LLC a nonexclusive, worldwide, irrevocable, | |
43 | # royalty-free, perpetual, license to use, copy, create derivative | |
44 | # works based on those contributions, and sublicense and distribute | |
45 | # those contributions and any derivatives thereof. | |
46 | # | |
47 | # END BPS TAGGED BLOCK }}} | |
48 | ||
49 | package RT::Shredder::Constants; | |
50 | ||
51 | use strict; | |
52 | use warnings; | |
53 | ||
54 | use base qw(Exporter); | |
55 | ||
56 | =head1 NAME | |
57 | ||
58 | RT::Shredder::Constants - RT::Shredder constants that is used to mark state of RT objects. | |
59 | ||
60 | =head1 DESCRIPTION | |
61 | ||
62 | This module exports two group of bit constants. | |
63 | First group is group of flags which are used to clarify dependecies between objects, and | |
64 | second group is states of RT objects in Shredder cache. | |
65 | ||
66 | =head1 FLAGS | |
67 | ||
68 | =head2 DEPENDS_ON | |
69 | ||
70 | Targets that has such dependency flag set should be wiped out with base object. | |
71 | ||
72 | =head2 WIPE_AFTER | |
73 | ||
74 | If dependency has such flag then target object would be wiped only | |
75 | after base object. You should mark dependencies with this flag | |
76 | if two objects depends on each other, for example Group and Principal | |
77 | have such relationship, this mean Group depends on Principal record and | |
78 | that Principal record depends on the same Group record. Other examples: | |
79 | User and Principal, User and its ACL equivalence group. | |
80 | ||
81 | =head2 VARIABLE | |
82 | ||
83 | This flag is used to mark dependencies that can be resolved with changing | |
84 | value in target object. For example ticket can be created by user we can | |
85 | change this reference when we delete user. | |
86 | ||
87 | =head2 RELATES | |
88 | ||
89 | This flag is used to validate relationships integrity. Base object | |
90 | is valid only when all target objects which are marked with this flags | |
91 | exist. | |
92 | ||
93 | =cut | |
94 | ||
95 | use constant { | |
96 | DEPENDS_ON => 0x000001, | |
97 | WIPE_AFTER => 0x000010, | |
98 | RELATES => 0x000100, | |
99 | VARIABLE => 0x001000, | |
100 | }; | |
101 | ||
102 | =head1 STATES | |
103 | ||
104 | =head2 ON_STACK | |
105 | ||
106 | Default state of object in Shredder cache that means that object is | |
107 | loaded and placed into cache. | |
108 | ||
109 | =head2 WIPED | |
110 | ||
111 | Objects with this state are not exist any more in DB, but perl | |
112 | object is still in memory. This state is used to be shure that | |
113 | delete query is called once. | |
114 | ||
115 | =head2 VALID | |
116 | ||
117 | Object is marked with this state only when its relationships | |
118 | are valid. | |
119 | ||
120 | =head2 INVALID | |
121 | ||
122 | =cut | |
123 | ||
124 | use constant { | |
125 | ON_STACK => 0x00000, | |
126 | IN_WIPING => 0x00001, | |
127 | WIPED => 0x00010, | |
128 | VALID => 0x00100, | |
129 | INVALID => 0x01000, | |
130 | }; | |
131 | ||
132 | our @EXPORT = qw( | |
133 | DEPENDS_ON | |
134 | WIPE_AFTER | |
135 | RELATES | |
136 | VARIABLE | |
137 | ON_STACK | |
138 | IN_WIPING | |
139 | WIPED | |
140 | VALID | |
141 | INVALID | |
142 | ); | |
143 | ||
144 | 1; |