Annotation Type DynamoDBVersionAttribute
Annotation for marking a property as an optimistic locking version attribute.
Applied to the getter method or the class field for the class's version
property. If the annotation is applied directly to the class field, the
corresponding getter and setter must be declared in the same class.
Only nullable, integral numeric types (e.g. Integer, Long) can be used as
version properties. On a save() operation, the DynamoDBMapper
will
attempt to increment the version property and assert that the service's value
matches the client's. New objects will be assigned a version of 1 when saved.
Note that for batchWrite, and by extension batchSave and batchDelete, no
version checks are performed, as required by the
AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest)
API.
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Optional Element Summary
Optional ElementsModifier and TypeOptional ElementDescriptionOptional parameter when the name of the attribute as stored in DynamoDB should differ from the name used by the getter / setter.
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Element Details
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attributeName
String attributeNameOptional parameter when the name of the attribute as stored in DynamoDB should differ from the name used by the getter / setter.- Default:
- ""
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