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Oracle TopLink Developer's Guide 10g Release 3 (10.1.3) B13593-01 |
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# Configuring Field Ordering

If your object-relational data source driver uses JDBC indexed arrays, you can specify the order in which TopLink persists object attributes to define the field index.

## Using Java

Use `ObjectRelationalDescriptor` method `addFieldOrdering` to specify the field ordering. Example 30-1 shows how to specify the order of the object-relational database fields `OBJECT_ID`, `F_NAME`, and `L_NAME` for the `Employee` descriptor.

Example 30-1 Field Ordering

    descriptor.addFieldOrdering("ID");
    descriptor.addFieldOrdering("F_NAME");
    descriptor.addFieldOrdering("L_NAME");