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# Using TopLink Workbench

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To specify a reference descriptor for an EIS mapping, use this procedure.

1. Select the mapped attribute in the Navigator. Its properties appear in the Editor.

2. Click the General tab. The General tab appears.

Use the Reference Descriptor field to select the descriptor referenced by this relationship mapping.

Note: For one-to-one and one-to-many EIS mappings, the reference descriptor must be a root descriptor. See "Configuring an EIS Descriptor as a Root or Composite Type".

You can specify a reference descriptor that is not in the current TopLink Workbench project. For example, to create a mapping to an `Employee` class that does not exist in the current project, do the following:

1. Add the `Employee` class to your current project. See "Working With Projects".

2. Create the relationship mapping to the `Employee` descriptor.

3. Deactivate the `Employee` descriptor. See "Active and Inactive Descriptors".

When you generate the deployment XML for your project, the mapping to the `Employee` class will be included, but not the `Employee` class itself.

See Also

  Configuring Reference Descriptors