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# Cache

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By default, a TopLink session provides an object level cache that guarantees object identity and enhances performance by reducing the number of times the application needs to access the data source. TopLink provides a variety of cache options, including locking, refresh, invalidation, isolation, and coordination. Using cache coordination, you can configure TopLink to synchronize changes with other instances of the deployed application. You configure most cache options at the session level. You can also configure cache options on a per-query basis, or on a descriptor to apply to all queries on the reference class.

For more information, see "Understanding the Cache"