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# Configuring Deprecated Direct Mappings

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You can configure deprecated direct mapping options only when using TopLink Workbench.

Starting with this release, TopLink no longer uses the following direct mapping types:

- Type conversion

- Object type

- Serialized object

Instead, TopLink uses a direct-to-field mapping with a specialized converter.

To generate backward-compatible deployment XML and Java source code files, use the Generate Deprecated Direct Mappings option.

Table: Project Support for Deprecated Direct Mapping Options summarizes which projects support deprecated direct mapping options.

Project Support for Deprecated Direct Mapping Options

Descriptor | Using TopLink Workbench | Using Java
--- | --- | ---
Relational Projects |  |
EIS Projects |  |
XML Projects |  |