This document covers the following topics:
The following Predict objects and external objects can be compared:
| Predict Object | External Object |
|---|---|
| File |
DDM |
| Database |
Adabas Database |
| Storagespace | DB2 Storagegroup |
| Dataspace |
DB2 Tablespace |
If comparison functions find differences between an external object and its corresponding documentation object, either the implementation or the documentation can be changed to restore consistency.
Actions to restore consistency are either performed by the Predict comparison function or have to be executed manually. The following actions can be executed by Predict comparison functions:
Update
Update documentation objects according to external objects.
Reset
Reset the Modified after generation flag for documentation
objects that do not differ from corresponding external objects. See
Resetting the
Modified after generation Flag below.
The following actions must be executed manually:
Generate
Generate a new external object from the documentation
object.
Disconnect
Disconnect the external object and the documentation
object.
Purge
Purge the external object or the documentation object.
The Modified after generation flag of Predict objects indicates if a Predict object has been changed after an external object was generated from it.
With Predict file objects of type A, separate Modified after generation flags are set for changes to file attributes and changes to the field list of the file.
If compare functions find that a Modified after generation flag is set for a Predict object that does not differ from the external object, the flag is reset.
Modified after generation flags are reset if the respective check options of the compare function are activated:
When comparing Adabas files, the Modified after generation flags for file attributes and for field lists can be reset separately. Predict evaluates the check options File attributes and Fields.
For all other object types, only one Modified after generation flag is set. All check options must be set to Y if the flag is to be reset.
When attributes of documentation and external objects differ, the attribute values of documentation objects are reported first and the information on external objects is indented, together with a brief description of the difference.
The following topics are covered below:
Predict objects and external objects to be compared must be connected. See the section Handling of External and Documentation Objects in this documentation.
Note:
There is one exception: If Adabas Online Services are not
installed, implemented Adabas files and Predict file objects of type A can be
compared even if they are not connected.
A variety of Adabas attributes can only be compared if Adabas version 6 or above is used and Adabas Online Services are installed.
When comparing external objects and Predict objects, the following options determine the scope of the operation:
Check Options
Determine how attributes are to be compared. If check options
are not set, compare functions will not reset the Modified after generation
flag. See Resetting the
Modified after generation Flag.
List Options
Determine the scope of results of the comparison to be
displayed.
Update Options
Determine which attributes of the Predict object are to be
updated if differences were found.
The options available depend on the object type. All options are described in detail with the respective object type later in this documentation.