| Overview | Metering Lines of Code | |
This chapter describes how to use the Investigator tool for analyzing data items.
The Investigator tool enables you to load points of interest into one interface for extended analysis and organization. The Investigator particularly focuses on data elements, but you can load points of interest of any type into Investigator if you wish.
Many of the analysis facilities of Investigator are available in other browsers or in the Analysis tools. The main plus points of the Investigator are:
The Investigator displays information in two modes: Selected and
Filtered. Selected mode displays all project entities that match your
naming, filter, and user criteria. Filtered mode displays all project
entities that you exclude from Selected mode with 
Exclude Selected and those that match your naming criteria but
were filtered by filter criteria. Use 
Show/Hide to toggle between the two modes.
You can load data elements into the Investigator in a variety of ways.
The Selection Criteria dialog box is displayed when you click
Options... and is
invoked automatically when you open the Investigator from the Tools
menu. It enables you to specify extensive criteria for selecting data
elements in your project for investigation.
Figure 2-1: The Selection Criteria Dialog Box
The Selection Criteria dialog box has the following six tabs:
| Use This Tab: |
To Do This: |
|---|---|
| Variable | Specify name criteria and filters for variables. You can specify filters for name, level, size, format and type. |
| Data File | Specify name criteria and filters for data files. You can specify filters for name and usage. |
| Literal | Specify name criteria and filters for literals. You can specify filters for name and type. |
| Text | Specify text strings you want to locate and load into the Investigator. You can also specify filters for text strings. |
| User | Displays user data
elements and filters. User data elements are the data elements that you
directly load into the Investigator from the clipboard or from other
tools and browsers. User filters represent user data elements that you
have excluded with
Exclude Selected. |
| PIC Translation | Define the translations
of PICTURE clauses that you want to implement. Use the
 Modification
Driver to implement them. |
When you are working with Revolve's tools and browsers, you can use the
Revolve clipboard to load data elements into the Investigator. In the
browser or tool window, you select the items you want to load into the
Investigator, right-click, click Capture Results on the popup menu
and select Copy to Clipboard. Then, open the Investigator and
click 
Paste
from clipboard. The data elements you load this way are considered
user data elements and are displayed on the Selection Criteria dialog's
User tab.
You can use the speed menu to load items into tools and browsers from other tools and browsers. This functionality is the same with the Investigator. Keep in mind that any items you select, right-click, and load into the Investigator are considered User data elements and are contained on the Selection Criteria dialog's User tab. For more information on the speed menu, see the section Speed Menu in the chapter The Interface in your Revolve User's Guide.
You can define very refined and high-level search criteria in the Selection Criteria dialog box. When you are satisfied that your criteria achieve maximum results, you can save them to use during another analysis or at a later date. To save your criteria, click Save in the Selection Criteria dialog box. Your criteria are saved to a .sel file. Whenever you close the Investigator window, if you have unsaved selection criteria you are asked if you want to save them.
You can load existing .sel files into the Selection Criteria dialog box by clicking Load.
In the Investigator you can specify translations that should be applied to particular types of COBOL PICTURE (or PIC) clauses. You use the PIC Translation tab of the Selection Criteria dialog to specify your requirements. Use the From field to specify existing PIC clauses that should be changed. Specify the new clause in To field. Click Add to add the translation to the translation list.
You use the
Modification Driver to implement the translations that you define
in the PIC Translations tab. The Modification Driver has a
PIC Translation check box that is enabled if the selected item is
a COBOL variable with a PIC clause. When you check PIC Translation
and click Execute, defined translations are applied to selected
items. Click the Setup... button beside the PIC Translation
check box and notice that the translation definitions that you defined in
the PIC Translations tab are displayed. For more information on
the Modification Driver, see the section Modification
Driver in the chapter The Interface in your Revolve
User's Guide.
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| Overview | Metering Lines of Code | |