TRANSFER Reference Manual

ALTER-ITEM-DES-B40
TISERV UOW Descriptions
069139, Update 1 to 40969 Tandem Computers Incorporated 2–97
EXPIRATION-DATE
is the date on which the package expires. On this date, the package is
automatically removed from the INBOX of any recipient who has not already
acknowledged its receipt through the ACK-RECEIPT UOW. Packages that are
acknowledged or are in other folders are not affected by expiration. Any copy
of the package kept by the sender must be explicitly discarded by the sender;
otherwise, the TRANSFER delivery system waits for the item-retention time
for the folder to elapse before removing the item. A relative date of value 0 M
means the package will not expire.
If a package expires and the recipient has not acknowledged its receipt, the
TRANSFER delivery system removes the package from the INBOX and
notifies the sender. Packages that are acknowledged by the recipient are only
removed from the INBOX folder by the TRANSFER delivery system when the
item-retention time for this folder elapses; they must be explicitly removed by
the recipient.
By initial system default, TRANSFER packages do not expire. You can specify
that a given package should eventually expire by including a nonzero absolute
or relative expiration date and time in the package header. You can change
the default for your depot by specifying a nonzero relative expiration time in
your correspondent profile. This value must be within the maximum lifespan
as indicated by a TRANSFER system control parameter; each package
submitted with a nonzero expiration field has that field increased, as
necessary, so that it exceeds the system minimum.
The interval between the LATEST-DELIV-DATE and EXPIRATION-DATE is
the package expiration time window. You can specify the EXPIRATION-
DATE as an absolute calendar date or a number of time units from LATEST-
DELIV-DATE. An absolute or relative date is indicated by the REL-DATE-
EXPIRATION field.
PRIORITY
is the package priority. The field can have a value from 0 (lowest priority) to
199 (highest priority).
AGENT-SELECTOR
is the agent selector criteria, as created by the ALTER-AGENT-SELECT UOW.
This is a number that is stored with the package to determine which agents are
invoked when the package is delivered. See the description of the ALTER-
AGENT-SELECT UOW in this section.
See Appendix B, “Status Packages,” on the use of agent selectors in
TRANSFER status packages.