Choose the Class Differences... menu item to compare the contents of two classes. If CMS finds differences, it creates a file that contains the generations that differ between them, and delivers a copy of the file to your current default directory. If the contents of the classes are the same, CMS issues a message to that effect and does not create a differences file. If you have turned off the Differences Only button, CMS still creates a file, even if there are no differences.
1 – D p
The Primary Input region includes a Selected field, and a Class field. The Primary Input region is associated with information about the first class to be compared.
2 – D sf
If you click on an object or objects before choosing the Class Differences... menu item, the Selected field contains those objects. CMS performs the differences transaction on the selected objects.
3 – D pi
Fill in the Primary Input Class field with the name of the first class to be compared.
4 – D sis
The Secondary Input region includes a Class field. The Secondary Input region is associated with information about the second class to be compared. You must supply an object name in the Class field.
5 – D si
The Secondary Input Class field specifies the second class to be compared.
6 – D op
You can specify the following options on the differences
transaction:
o Whether the differing generation names from the two
classes are formatted vertically (side by side) instead
of horizontally (line by line)
o Whether just the differences are listed or not
o The width of the differences report
6.1 – D po
Click on the Parallel button to control whether the differing generation names from the two classes are formatted side by side. The differences from the first class are displayed on the left and the differences from the second class are displayed on the right.
6.2 – D w
Click on the Width button to control the limit for the width of the differences report. The value can be from 48 to 511, inclusive. If you do not supply a width in the Width field, CMS uses 80 by default.
6.3 – D od
When this button is activated, CMS creates a file that contains only the generation names that differ between the two classes.
7 – D go tb
Fill in the Output File field with the name of a file to which CMS should write the differences output. If you do not specify a file name in the Output File field, CMS creates a file with the Primary Input Class name and the file type .DIF in your default directory. You can also choose the Appended option; this option appends the output to the existing file.
8 – D ab
Click on the Appended button to control whether CMS appends the differences output to an existing file or creates a new file. If you choose Appended and the output file does not exist, CMS creates a new file. If you do not provide an output file specification, CMS searches your default directory for a file with the Primary Input Class name and the file type .DIF.
9 – D op pb
Click on the Options button to bring up a dialog box,
allowing you to specify the following options in the
library:
o Generation name differences to be shown during the
comparision
o Generation name differences to be ignored during
the comparison
9.1 – D ods
The Show options allow you to choose what sort of generation name differences should be shown during the comparison. You can choose one or more of the following options: o Element Differences o Generation Differences o Variant Differences
9.1.1 – D ed
Click on the Element Differences button to direct CMS to show the difference if there is a generation of an element in one class but no generation of that element in the other class.
9.1.2 – D gd
Click on the Generation Differences button to direct CMS to show the difference if the generation in one class differs from the generation in the other class but one generation isn't a variant of the other generation.
9.1.3 – D vd
Click on the Variant Differences button to direct CMS to show the difference if the generation in one class differs from the generation in the other class and one generation is a variant of the other. One generation will be a variant of the other if at some point in the path between one generation and the other a generation is reserved and replaced with a variant specified.
9.2 – D ig
The Ignore options allow you to choose what sort of generation name differences should be ignored during the comparison. Currently the only option possible is the following: o First Variant
9.2.1 – D fv
Click on the First Variant button to direct CMS to ignore any differences where the generation in one class is the first variant of the generation in the other class. For example generation 2C1 is a first variant of generation 2 and generation 4B6D1 is a first variant of generation 4B6.