When you have access to a temporary data object, you can:
- View the object through one or more windows. Depending on the
object size and the window size, a single window can view all or part
of a temporary object. If you define multiple windows, each window
can view a different part of the object. For example, one window might
view the first block of the temporary object and another window might
view the second block. Unlike a permanent object, however, you cannot
define multiple windows that have overlapping views of a temporary
object.
- Change data that appears in a window. This function is the same
for a temporary object as it is for a permanent object: you can examine
or change data that is in a window by using the same instructions
you use to examine or change any other data in your address space.
These changes do not alter the object on DASD or in the scroll area.
- Update the temporary object. After you have changed data in a
window, you can have window services update the object with those
changes. Window services replaces blocks in the object with corresponding
changed blocks from the window. The data in the window remains as
it was.
- Refresh a window or the object. After you change data in a window
or save changes in the object, you may discover that you no longer
need those changes. In that case, you can have window services refresh
the changed data. To refresh the window or the object, window services
replaces changed data with binary zeroes.
- Change the view in a window. After you finish using data that's
in a window, you can have window services replace the view in the
window with a different view of the object. For example, if you are
viewing the third, fourth, and fifth blocks of an object and are finished
with those blocks, you might have window services replace that view
with a view of the sixth, seventh, and eighth blocks.