Mail::SpamAssassin::BayesStore man page on YellowDog

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Mail::SpamAssassin::BaUsertContributed Perl DMail::SpamAssassin::BayesStore(3)

NAME
       Mail::SpamAssassin::BayesStore - Bayesian Storage Module

DESCRIPTION
       This is the public API for the Bayesian store methods.  Any implementa‐
       tion of the storage module must implement these methods.

METHODS
       new public class (Mail::SpamAssassin::BayesStore) new (Mail::SpamAssas‐
	   sin::Bayes $bayes)

	   Description: This method creates a new instance of the Mail::Spa‐
	   mAssassin::BayesStore object.  You must pass in an instance of the
	   Mail::SpamAssassin:Bayes object, which is stashed for use through‐
	   out the module.

       DB_VERSION
	   public instance (Integer) DB_VERSION ()

	   Description: This method returns the currently supported database
	   version for the implementation.

       read_db_configs
	   public instance () read_db_configs ()

	   Description: This method reads any needed config variables from the
	   configuration object and then calls the Mail::SpamAssassin::Bayes
	   read_db_configs method.

       tie_db_readonly
	   public instance (Boolean) tie_db_readonly ()

	   Description: This method opens up the database in readonly mode.

       tie_db_writable
	   public instance (Boolean) tie_db_writable ()

	   Description: This method opens up the database in writable mode.

	   Any callers of this methods should ensure that they call untie_db()
	   afterwards.

       untie_db
	   public instance () untie_db ()

	   Description: This method unties the database.

       calculate_expire_delta
	   public instance (%) calculate_expire_delta (Integer $newest_atime,
							Integer $start,
							Integer
	   $max_expire_mult)

	   Description: This method performs a calculation on the data to
	   determine the optimum atime for token expiration.

       token_expiration
	   public instance (Integer, Integer,
			    Integer, Integer) token_expiration(\% $opts,
							       Integer $new‐
	   est_atime,
							       Integer
	   $newdelta)

	   Description: This method performs the database specific expiration
	   of tokens based on the passed in $newest_atime and $newdelta.

       expire_old_tokens
	   public instance (Boolean) expire_old_tokens (\% hashref)

	   Description: This method expires old tokens from the database.

       expire_old_tokens_trapped
	   public instance (Boolean) expire_old_tokens_trapped (\% $opts)

	   Description: This methods does the actual token expiration.

	   XXX More docs here about the methodology and what not

       sync_due
	   public instance (Boolean) sync_due ()

	   Description: This methods determines if a sync is due.

       expiry_due
	   public instance (Boolean) expiry_due ()

	   Description: This methods determines if an expire is due.

       seen_get
	   public instance (Char) seen_get (String $msgid)

	   Description: This method retrieves the stored value, if any, for
	   $msgid.  The return value is the stored string ('s' for spam and
	   'h' for ham) or undef if $msgid is not found.

       seen_put
	   public instance (Boolean) seen_put (String $msgid, Char $flag)

	   Description: This method records $msgid as the type given by $flag.
	   $flag is one of two values 's' for spam and 'h' for ham.

       seen_delete
	   public instance (Boolean) seen_delete (String $msgid)

	   Description: This method removes $msgid from storage.

       get_storage_variables
	   public instance (@) get_storage_variables ()

	   Description: This method retrieves the various administrative vari‐
	   ables used by the Bayes storage implementation.

	   The values returned in the array are in the following order:

	   0: scan count base

	   1: number of spam

	   2: number of ham

	   3: number of tokens in db

	   4: last expire atime

	   5: oldest token in db atime

	   6: db version value

	   7: last journal sync

	   8: last atime delta

	   9: last expire reduction count

	   10: newest token in db atime

       dump_db_toks
	   public instance () dump_db_toks (String $template, String $regex, @
	   @vars)

	   Description: This method loops over all tokens, computing the prob‐
	   ability for the token and then printing it out according to the
	   passed in template.

       set_last_expire
	   public instance (Boolean) _set_last_expire (Integer $time)

	   Description: This method sets the last expire time.

       get_running_expire_tok
	   public instance (Time) get_running_expire_tok ()

	   Description: This method determines if an expire is currently run‐
	   ning and returns the time the expire started.

       set_running_expire_tok
	   public instance (Time) set_running_expire_tok ()

	   Description: This method sets the running expire time to the cur‐
	   rent time.

       remove_running_expire_tok
	   public instance (Boolean) remove_running_expire_tok ()

	   Description: This method removes a currently set running expire
	   time.

       tok_get
	   public instance (Integer, Integer, Time) tok_get (String $token)

	   Description: This method retrieves the specified token ($token)
	   from storage and returns it's spam count, ham acount and last
	   access time.

       tok_get_all
	   public instance (\@) tok_get_all (@ @tokens)

	   Description: This method retrieves the specified tokens (@tokens)
	   from storage and returns an array ref of arrays spam count, ham
	   acount and last access time.

       tok_count_change
	   public instance (Boolean) tok_count_change (Integer $spam_count,
						       Integer $ham_count,
						       String $token,
						       Time $atime)

	   Description: This method takes a $spam_count and $ham_count and
	   adds it to $token along with updating $tokens atime with $atime.

       multi_tok_count_change
	   public instance (Boolean) multi_tok_count_change (Integer
	   $spam_count,
					      Integer $ham_count,
					       \% $tokens,
					      String $atime)

	   Description: This method takes a $spam_count and $ham_count and
	   adds it to all of the tokens in the $tokens hash ref along with
	   updating each tokens atime with $atime.

       nspam_nham_get
	   public instance (Integer, Integer) nspam_nham_get ()

	   Description: This method retrieves the total number of spam and the
	   total number of spam currently under storage.

       nspam_nham_change
	   public instance (Boolean) nspam_nham_change (Integer $num_spam,
							Integer $num_ham)

	   Description: This method updates the number of spam and the number
	   of ham in the database.

       tok_touch
	   public instance (Boolean) tok_touch (String $token,
						Time $atime)

	   Description: This method updates the given tokens ($token) access
	   time.

       tok_touch_all
	   public instance (Boolean) tok_touch_all (\@ $tokens,
						    Time $atime)

	   Description: This method does a mass update of the given list of
	   tokens $tokens, if the existing token atime is < $atime.

       cleanup
	   public instance (Boolean) cleanup ()

	   Description: This method performs any cleanup necessary before mov‐
	   ing onto the next operation.

       get_magic_re
	   public instance get_magic_re (String)

	   Description: This method returns a regexp which indicates a magic
	   token.

       sync
	   public instance (Boolean) sync (\% $opts)

	   Description: This method performs a sync of the database.

       perform_upgrade
	   public instance (Boolean) perform_upgrade (\% $opts)

	   Description: This method is a utility method that performs any nec‐
	   essary upgrades between versions.  It should know how to handle
	   previous versions and what needs to happen to upgrade them.

	   A true return value indicates success.

       clear_database
	   public instance (Boolean) clear_database ()

	   Description: This method deletes all records for a particular user.

	   Callers should be aware that any errors returned by this method
	   could causes the database to be inconsistent for the given user.

       backup_database
	   public instance (Boolean) backup_database ()

	   Description: This method will dump the users database in a marchine
	   readable format.

       restore_database
	   public instance (Boolean) restore_database (String $filename, Bool‐
	   ean $showdots)

	   Description: This method restores a database from the given file‐
	   name, $filename.

	   Callers should be aware that any errors returned by this method
	   could causes the database to be inconsistent for the given user.

       db_readable
	   public instance (Boolean) db_readable ()

	   Description: This method returns whether or not the Bayes DB is
	   available in a readable state.

       db_writable
	   public instance (Boolean) db_writable ()

	   Description: This method returns whether or not the Bayes DB is
	   available in a writable state.

perl v5.8.8			  2008-06-10 Mail::SpamAssassin::BayesStore(3)
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