||A component that provides a consistent window (chunk) of time for
any time value within that window.
||This is a nucleus component that returns aspects of the current
date (such as the year, date, month, etc.).
||This service is an extension of the CurrentDate service, but adds the capability
of having it's time fixed on a periodic basis through the scheduler.
||This class maintains a collection of information useful when building
sortable tables in JHTML where each column in the table displays some
property of an object, and where the user interface wishes to allow the
user to sort the table on one or more columns.