Rational Programming Patterns

Logical View -CE Lines tab

The -CE Lines tab contains a table of the elements which compose the current Logical View. If no element has ever 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. Moreover, in this tab you must indicate for each element called in the Logical View, its characteristics and the Logical View attributes.

The -CE lines tab consists of an editable table, action buttons to add or remove elements in the table, and sections highlighted when you click or add a call line in the table. In these sections, you can give information about the element called and the Logical View attributes or they can be completed directly in the column cells of the table.

-CE lines definition

The editable table can contain in the following call elements:
The columns show information such as:
  • The Name, Label, Format, or 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.
  • The Occurs, Data Element presence, Transfer direction, Transfer operator. They are common to all the elements called in the Logical View. They must be completed with values, you can find the corresponding fields in the sections that are displayed in the second part of the -CE lines tab 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 in the second part of the tab.

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 pop-up menu (Copy, Paste, Revert, Cancel).

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

Navigating in the table:
  • When the focus is put in the table, you can move to the previous or next line by pressing the up or down arrows,
  • For each element added to a Segment, if you put the focus in a line and press the Alt key or Right arrow key, you move to the next editable cell in which you can enter values,
  • Press the Left arrow key or Shift+Tab key to move to the previous editable cell.
  • Pressing the Enter key when the focus is in an editable cell lets you toggle between the editable cells in the same column and keeps you in the edition mode. To leave the edition mode, press the escape key.

To edit a cell, you need to double-click or press F2, then you can enter the appropriate values directly in the cell or use a list box, check box or dialog box when available to select a value. The input mode in a column cell depends on the type of element 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 a Data Element, for a group or an undefined Data Element, you need to enter the 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 which 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 of elements called in a Logical View, a section is made available in the second part of the tab. In this section, you can enter or select the required values in the fields available for each type of element added to the table. But if you are familiar with the -CE of Logical Views, you can enter directly the proper values in the editable cells of the table.
Note: For all the elements called in the Logical View, you must complete the Occurs field. For a group, you can define its name and label. They all have in common the Logical View attributes, which must be specified for the current Logical View. For details on the authorized values in the table, click the associated references at the this help page.
The sections available are the following ones:
  • The Data Element call section opens up if you add or select a Data Element.
  • The Group Definition section opens up if you add or select a group.
  • The Segment call section opens up if you add or select a Segment.
Figure 1. Sample Data Element call sectionData Element call section
The following wizard opens when you click the More button in the Data Element call (or Segment call, or group definition) section:
Figure 2. -CE Definition wizard-CE Definition wizard

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