1Mail::SpamAssassin::BayUesseSrtoCroen(t3r)ibuted Perl DoMcauimle:n:tSaptaimoAnssassin::BayesStore(3)
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NAME

6       Mail::SpamAssassin::BayesStore - Storage Module for default Bayes
7       classifier
8

DESCRIPTION

10       This is the public API for the Bayesian store methods.  Any
11       implementation of the storage module for the default Bayes classifier
12       must implement these methods.
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METHODS

15       new public class (Mail::SpamAssassin::BayesStore) new
16           (Mail::SpamAssassin::Plugin::Bayes $bayes)
17
18           Description: This method creates a new instance of the
19           Mail::SpamAssassin::BayesStore object.  You must pass in an
20           instance of the Mail::SpamAssassin::Plugin::Bayes object, which is
21           stashed for use throughout the module.
22
23       DB_VERSION
24           public instance (Integer) DB_VERSION ()
25
26           Description: This method returns the currently supported database
27           version for the implementation.
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29       read_db_configs
30           public instance () read_db_configs ()
31
32           Description: This method reads any needed config variables from the
33           configuration object and then calls the
34           Mail::SpamAssassin::Plugin::Bayes read_db_configs method.
35
36       prefork_init
37           public instance (Boolean) prefork_init ()
38
39           Description: This optional method is called in the parent process
40           shortly before forking off child processes.
41
42       spamd_child_init
43           public instance (Boolean) spamd_child_init ()
44
45           Description: This optional method is called in a child process
46           shortly after being spawned.
47
48       tie_db_readonly
49           public instance (Boolean) tie_db_readonly ()
50
51           Description: This method opens up the database in readonly mode.
52
53       tie_db_writable
54           public instance (Boolean) tie_db_writable ()
55
56           Description: This method opens up the database in writable mode.
57
58           Any callers of this methods should ensure that they call untie_db()
59           afterwards.
60
61       untie_db
62           public instance () untie_db ()
63
64           Description: This method unties the database.
65
66       calculate_expire_delta
67           public instance (%) calculate_expire_delta (Integer $newest_atime,
68                                                        Integer $start,
69                                                        Integer
70           $max_expire_mult)
71
72           Description: This method performs a calculation on the data to
73           determine the optimum atime for token expiration.
74
75       token_expiration
76           public instance (Integer, Integer,
77                            Integer, Integer) token_expiration(\% $opts,
78                                                               Integer
79           $newest_atime,
80                                                               Integer
81           $newdelta)
82
83           Description: This method performs the database specific expiration
84           of tokens based on the passed in $newest_atime and $newdelta.
85
86       expire_old_tokens
87           public instance (Boolean) expire_old_tokens (\% hashref)
88
89           Description: This method expires old tokens from the database.
90
91       expire_old_tokens_trapped
92           public instance (Boolean) expire_old_tokens_trapped (\% $opts)
93
94           Description: This methods does the actual token expiration.
95
96           XXX More docs here about the methodology and what not
97
98       sync_due
99           public instance (Boolean) sync_due ()
100
101           Description: This methods determines if a sync is due.
102
103       expiry_due
104           public instance (Boolean) expiry_due ()
105
106           Description: This methods determines if an expire is due.
107
108       seen_get
109           public instance (Char) seen_get (String $msgid)
110
111           Description: This method retrieves the stored value, if any, for
112           $msgid.  The return value is the stored string ('s' for spam and
113           'h' for ham) or undef if $msgid is not found.
114
115       seen_put
116           public instance (Boolean) seen_put (String $msgid, Char $flag)
117
118           Description: This method records $msgid as the type given by $flag.
119           $flag is one of two values 's' for spam and 'h' for ham.
120
121       seen_delete
122           public instance (Boolean) seen_delete (String $msgid)
123
124           Description: This method removes $msgid from storage.
125
126       get_storage_variables
127           public instance (@) get_storage_variables ()
128
129           Description: This method retrieves the various administrative
130           variables used by the Bayes storage implementation.
131
132           The values returned in the array are in the following order:
133
134           0: scan count base
135
136           1: number of spam
137
138           2: number of ham
139
140           3: number of tokens in db
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142           4: last expire atime
143
144           5: oldest token in db atime
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146           6: db version value
147
148           7: last journal sync
149
150           8: last atime delta
151
152           9: last expire reduction count
153
154           10: newest token in db atime
155
156       dump_db_toks
157           public instance () dump_db_toks (String $template, String $regex, @
158           @vars)
159
160           Description: This method loops over all tokens, computing the
161           probability for the token and then printing it out according to the
162           passed in template.
163
164       set_last_expire
165           public instance (Boolean) _set_last_expire (Integer $time)
166
167           Description: This method sets the last expire time.
168
169       get_running_expire_tok
170           public instance (Time) get_running_expire_tok ()
171
172           Description: This method determines if an expire is currently
173           running and returns the time the expire started.
174
175       set_running_expire_tok
176           public instance (Time) set_running_expire_tok ()
177
178           Description: This method sets the running expire time to the
179           current time.
180
181       remove_running_expire_tok
182           public instance (Boolean) remove_running_expire_tok ()
183
184           Description: This method removes a currently set running expire
185           time.
186
187       tok_get
188           public instance (Integer, Integer, Time) tok_get (String $token)
189
190           Description: This method retrieves the specified token ($token)
191           from storage and returns it's spam count, ham count and last access
192           time.
193
194       tok_get_all
195           public instance (\@) tok_get_all (@ @tokens)
196
197           Description: This method retrieves the specified tokens (@tokens)
198           from storage and returns an array ref of arrays spam count, ham
199           count and last access time.
200
201       tok_count_change
202           public instance (Boolean) tok_count_change (Integer $spam_count,
203                                                       Integer $ham_count,
204                                                       String $token,
205                                                       Time $atime)
206
207           Description: This method takes a $spam_count and $ham_count and
208           adds it to $token along with updating $tokens atime with $atime.
209
210       multi_tok_count_change
211           public instance (Boolean) multi_tok_count_change (Integer
212           $spam_count,
213                                              Integer $ham_count,
214                                               \% $tokens,
215                                              String $atime)
216
217           Description: This method takes a $spam_count and $ham_count and
218           adds it to all of the tokens in the $tokens hash ref along with
219           updating each tokens atime with $atime.
220
221       nspam_nham_get
222           public instance (Integer, Integer) nspam_nham_get ()
223
224           Description: This method retrieves the total number of spam and the
225           total number of ham currently under storage.
226
227       nspam_nham_change
228           public instance (Boolean) nspam_nham_change (Integer $num_spam,
229                                                        Integer $num_ham)
230
231           Description: This method updates the number of spam and the number
232           of ham in the database.
233
234       tok_touch
235           public instance (Boolean) tok_touch (String $token,
236                                                Time $atime)
237
238           Description: This method updates the given tokens ($token) access
239           time.
240
241       tok_touch_all
242           public instance (Boolean) tok_touch_all (\@ $tokens,
243                                                    Time $atime)
244
245           Description: This method does a mass update of the given list of
246           tokens $tokens, if the existing token atime is < $atime.
247
248       cleanup
249           public instance (Boolean) cleanup ()
250
251           Description: This method performs any cleanup necessary before
252           moving onto the next operation.
253
254       get_magic_re
255           public instance get_magic_re (String)
256
257           Description: This method returns a regexp which indicates a magic
258           token.
259
260       sync
261           public instance (Boolean) sync (\% $opts)
262
263           Description: This method performs a sync of the database.
264
265       perform_upgrade
266           public instance (Boolean) perform_upgrade (\% $opts)
267
268           Description: This method is a utility method that performs any
269           necessary upgrades between versions.  It should know how to handle
270           previous versions and what needs to happen to upgrade them.
271
272           A true return value indicates success.
273
274       clear_database
275           public instance (Boolean) clear_database ()
276
277           Description: This method deletes all records for a particular user.
278
279           Callers should be aware that any errors returned by this method
280           could causes the database to be inconsistent for the given user.
281
282       backup_database
283           public instance (Boolean) backup_database ()
284
285           Description: This method will dump the users database in a machine
286           readable format.
287
288       restore_database
289           public instance (Boolean) restore_database (String $filename,
290           Boolean $showdots)
291
292           Description: This method restores a database from the given
293           filename, $filename.
294
295           Callers should be aware that any errors returned by this method
296           could causes the database to be inconsistent for the given user.
297
298       db_readable
299           public instance (Boolean) db_readable ()
300
301           Description: This method returns whether or not the Bayes DB is
302           available in a readable state.
303
304       db_writable
305           public instance (Boolean) db_writable ()
306
307           Description: This method returns whether or not the Bayes DB is
308           available in a writable state.
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312perl v5.30.1                      2020-02-03 Mail::SpamAssassin::BayesStore(3)