7.5. Transaction modes to improve efficiency
JDO defines two additional transaction modes intended to improve efficiency. These are RestoreValues and RetainValues. Note that the setting of these flags only affects instances in memory, and does not alter the effect of commit or rollback processing on the data store.
7.5.1. RestoreValues
The setting of the RestoreValues flag affects the treatment of instances in memory as a result of transaction rollback.
If the RestoreValues flag is true, instances involved in a transaction that is rolled back will have their field values restored to their original values. These were cached when the transaction was begun.
If the RestoreValues flag is false, instances involved in a transaction that is rolled back ...
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