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# Change Policy Mapping Support

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TopLink supports alternative change tracking policies (policies other than `DeferredChangeDetectionPolicy`) for attributes that use any of the following mapping types:

- Direct-to-Field Mapping

- Transformation Mapping (immutable mappings only)

- One-to-One Mapping

- Variable One-to-One Mapping

- One-to-Many Mapping

- Many-to-Many Mapping

- Direct Collection Mapping

- Direct Map Mapping

- Aggregate Object Mapping

- EIS Transformation Mapping (immutable mappings only)

TopLink uses the `DeferredChangeDetectionPolicy` (see "Deferred Change Detection Policy") for attributes that use any other type of mapping.