| Class JobStateReasons is a printing attribute class, a set of enumeration
values, that provides additional information about the job's current state,
i.e., information that augments the value of the job's
JobState JobState attribute.
Instances of
JobStateReason JobStateReason do not appear in a Print
Job's attribute set directly. Rather, a JobStateReasons attribute appears in
the Print Job's attribute set. The JobStateReasons attribute contains zero,
one, or more than one
JobStateReason JobStateReason objects which
pertain to the Print Job's status. The printer adds a
JobStateReason JobStateReason object to the Print Job's JobStateReasons attribute when the
corresponding condition becomes true of the Print Job, and the printer
removes the
JobStateReason JobStateReason object again when the
corresponding condition becomes false, regardless of whether the Print Job's
overall
JobState JobState also changed.
Class JobStateReasons inherits its implementation from class
java.util.HashSet java.util.HashSet . Unlike most printing attributes which
are immutable once constructed, class JobStateReasons is designed to be
mutable; you can add
JobStateReason JobStateReason objects to an
existing JobStateReasons object and remove them again. However, like class
java.util.HashSet java.util.HashSet , class JobStateReasons is not
multiple thread safe. If a JobStateReasons object will be used by multiple
threads, be sure to synchronize its operations (e.g., using a synchronized
set view obtained from class
java.util.Collections java.util.Collections ).
IPP Compatibility: The string value returned by each individual
JobStateReason JobStateReason object's toString() method gives
the IPP keyword value. The category name returned by getName()
gives the IPP attribute name.
author:
Alan Kaminsky |