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# Configuring Selection Interaction

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In EIS mappings that extend `oracle.toplink.mappings.ForeignReferenceMapping` class, TopLink uses a selection interaction to acquire the instance of the target object to which the mapping refers.

By default, TopLink uses the read interaction you define for the mapping's reference descriptor (see "Configuring Reference Descriptors"). In most cases, this interaction is sufficient. If the reference descriptor's read interaction is not sufficient, you can define a separate interaction.

Table: Mapping Support for Selection Interaction summarizes which EIS mappings support this option.

Mapping Support for Selection Interaction

Mapping | Using TopLink Workbench | Using Java
--- | --- | ---
EIS Direct Mapping |  |
EIS Composite Direct Collection Mapping |  |
EIS One-to-One Mapping |  |
EIS One-to-Many Mapping |  |
EIS Composite Object Mapping |  |
EIS Composite Collection Mapping |  |
EIS Transformation Mapping |  |

For more information about how TopLink uses the selection criteria, see "Reference EIS Mappings".