Rational Programming Patterns

Logical View -CE Lines tab

This tab contains a table of the elements that compose the current Logical View. If no element has been assigned to the Logical view, this table is empty. If it is not, you can see an ordered sequence of Data Elements and possibly other lines such as Segments, Logical Views, and groups of Data Elements. You must indicate the characteristics and attributes of each called element.

The -CE lines tab is constituted of an editable table, buttons that are associated with the table, and sections that can be used to complete the required information for each element added to the Segment. If you are familiar with the -CE of a Segment, you can complete directly the columns of the table. You can also complete the fields in the definition sections which are displayed when you enter or select an element in the table.

-CE lines definition

The editable table can contain in the following call elements:
The columns show the following information:
  • Name, Label, Format, and Usage. They were defined upon creation for the Data Elements and Segments called in the Logical View, but they must be specified in the Group definition section of the -CE Lines tab for group calls.
  • Occurs, Data Element presence, Transfer direction, and Transfer operator. They are common to all the elements called in the Logical View. They must be completed with values. The corresponding fields are available in the sections that open when you insert or select them in the -CE lines definition table.
  • The Subschemas, Transfer area, and Oper. They correspond to fields to be completed in a wizard that opens when you click More in the Segment call section, Data Element call section, or Group definition section.

When you add a Data Element group in the table, a tree structure is created to nest the Data Elements that you want to include in the group. Click + to expand and display the contents of the group.

All the table columns are displayed by default. To reduce the number of columns, right-click in the table and select Show columns > Select.

You can complete and reorganize the lines of the table by using the choices available in the contextual menu (Copy, Paste, Revert, Cancel).

You can also delete lines in the table with the Remove button or reorder the lines in the table by clicking the direction buttons. The table is minimized by default to display the Definition sections. Click Maximize to display only the table in a full screen.

Note: The possible actions with the buttons are also available in the contextual menu of the table.
You can navigate in the table in the following ways:
  • Set the focus in the table and move to the previous or next line by clicking the arrows,
  • Set the focus in a line and press the Alt key or right arrow key to move to the next editable cell in which you can enter values.
  • Press the arrow key or Shift+Tab key to move to the previous editable cell.
  • Set the focus in an editable cell and press the Enter key to navigate in the editable cells of the same column. It keeps you in the edition mode. To leave the edition mode, press the escape key.

To edit a cell, double-click or press F2. Then, you can enter the appropriate values directly in the cell or select them. The input mode in a column cell depends on the type of element that is entered in the table. In the Name column cell of a Segment or Data Element, you can use a dialog box to select a Segment or Logical View or a Data Element. For a group, you must enter its name.

Buttons

Buttons are used to organize the insertion and organization of call lines in the table:

Add Data Element
Clicking this button opens a list of the available Data Elements. You can add a Data Element call directly in the table or under a Segment call, or a group. When a Data Element instance is selected, a new line corresponding to a new Data Element call is added to the table.
Add Segment call
Clicking this button opens a list of available Segments or Logical Views. You can select an instance in the list or create a Segment or Logical View that will be added to the list of Segments. Selecting an instance creates a line in the table.
Add group call
Clicking this button creates a line call in the table.
Remove
Clicking a line in the table and then this button, removes the selection from the table.
The ↑↓ buttons
Use these buttons to move a selected call line in the table.

Call line Definition

When you create or select a Data Element call, a Segment call, a group line, or a set of Redefines in the table, a section opens. In this section, you can enter or select the required values in the fields available for each type of element added to the table. However, if you are familiar with the -CE of Logical Views, you can enter the values directly in the editable cells of the table.

The following wizard opens when you click the More button in the Data Element call (or Segment call, or group definition) section:
Figure 1. -CE Definition wizard-CE Definition wizard

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