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# EIS Mapping Types

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TopLink supports the EIS mappings listed in Table: TopLink Object EIS Mapping Types.

TopLink Object EIS Mapping Types

Mapping Type | Description | Type | TopLink Workbench | Java
--- | --- | --- | --- | ---
"EIS Direct Mapping" | Map a simple object attribute directly to an EIS record. | Basic |  |
"EIS Composite Direct Collection Mapping" | Map a collection of Java attributes directly to an EIS record. | Basic |  |
"EIS Composite Object Mapping" | Map a Java object to an EIS record in a privately owned one-to-one relationship. Composite object mappings represent a relationship between two classes. | Advanced |  |
"EIS Composite Collection Mapping" | Map a `Map` or `Collection` of Java objects to an EIS record in a privately owned one-to-many relationship. | Advanced |  |
"EIS One-to-One Mapping" | Define a reference mapping that represents the relationship between a single source object and a single mapped persistent Java object. | Basic |  |
"EIS One-to-Many Mapping" | Define a reference mapping that represents the relationship between a single source object and a collection of mapped persistent Java objects. | Basic |  |
"EIS Transformation Mapping" | Create custom mappings where one or more EIS record fields can be used to create the object to be stored in a Java class's attribute. | Advanced |  |