How to use Mapper logic

To use Mapper logic, drag and drop the logic icon from the tool palette onto the mapping canvas.

For example, when you want to create an operation where the numerical value "1.05" is added to the input data before the data is output, you configure the settings as follows:

Connecting mapping links

The method for connecting a link to a Mapper logic input handler differs depending on the input handler type.

To enable Mapper logic output, connect a link to another logic or output schema element.

Linking to an input handler

When the Mapper logic does not contain an input handler

You cannot connect a mapping link.
When the Mapper logic contains one input handler

You can connect an input schema element or other Mapper logic.
- Input schema element
- Other Mapper logic
When the Mapper logic contains two input handlers

You can combine and connect an element of an input source schema with other Mapper logic.
- Two input schema elements
- Input schema element and other Mapper logic

Configuring Mapper logic

The settings for each property item of Mapper logic can be configured from the property settings dialog box or the property inspector.

Moving Mapper logic

You can move Mapper logic that you placed on the mapping canvas at all times by dragging and dropping the icon.

If the Mapper logic is mapped, the mapping links are moved as well.

Right-click menu

Use the right-click menu of Mapper logic that is placed on the mapping canvas to perform the following operations.

= Remarks =

You can perform the same operations from the menu in Designer as well.

Description of item

Table 2.2 Description of item
Item Name	Description	Notes
Cut	This item cuts the logic icon.
Copy	This item copies the logic icon.
Delete	This item deletes the logic icon.
Alignment	This item aligns the logic icons. Align left Align right Align top Align bottom Align horizontally Align vertically	This item can be used only when multiple icons are selected. Align horizontally and Align vertically can be used when three or more icons are selected.
Paste	This item pastes the cut or copied logic icon.
Properties	This item opens the dialog box for the logic property settings.	This item can be used only when a single icon is selected.

Official | HULFT IoT EdgeStreaming Mapper Reference First Edition: July 1, 2021

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