Chapter 15 The Mapping Editor

Creating a mapping using the Create Mapping tool from the Mappings pane

You can create a mapping using the Create Mapping tool from the Mappings pane. The mapping object can be compared to a container for the target object and its source objects.

You first need to select an object icon in the Target pane.

If the target object is a parent object A selection dialog box is displayed to let you select one or more sources for the target. Then they are displayed in the Parent Object Sources sub-tab of the Mappings pane. Besides, child objects that match are automatically mapped and are displayed in the Child Objects Mapping sub-tab.

If the target object is a child object You also need to select one or more object icons in the Source pane. The mapping expression is displayed in the Mapped to sub-tab that you can modify. You can also add other source objects using the Add Sources tool in the Sources sub-tab.

To create a mapping using the Create Mapping tool from the Mappings pane:

1. Select an object icon in the Target pane if the target object is a parent.
   
   or
   
   Select one or more object icons in the Source pane and select an object icon in the Target pane if the target object is a child.
2. Click the Create Mapping tool in the Mappings pane.
   
   A link is automatically created between the objects to materialize the mapping and a small symbol is displayed on the source and target object icons. The mapping details display in the Mappings pane.

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