Configuring Foreign Key Pairs

In a one-to-one EIS mapping, you relate a source object attribute to a target object attribute by specifying one or more pairs of source and target object fields.

In a one-to-one EIS mapping with key on source (see "EIS One-to-One Mappings With Key on Source") using XML records, TopLink puts the target XML field value into the source object's record as a simple value.

In a one-to-one EIS mapping with key on target (see "EIS One-to-One Mappings With Key on Target") using XML records, TopLink uses the source XML field value in the selection interaction to acquire the appropriate instance of target object.

Using TopLink Workbench

To specify the source and target XML field pairs for a one-to-one EIS mapping, use this procedure:

1. Select the one-to-one EIS mapping in the Navigator. Its properties appear in the Editor.

2. Click the General tab. The General tab opens.

   Figure 62-1 Foreign Keys Field on General Tab

   
   Description of "Figure 62-1 Foreign Keys Field on General Tab"
   
   

3. Click Add in the Foreign Keys area to add a key pair. The Specify Field Pair dialog box appears.

Figure 62-2 Specify Field Pair Dialog Box

Description of "Figure 62-2 Specify Field Pair Dialog Box"

Click Browse to add a foreign key for the Source XPath and Target XPath fields.