feat: add put() method to TransactionWriteSet #246
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Adds TransactionWriteSet.put() to use DynamoDB PutItem instead of UpdateItem, bypassing the 4KB UpdateExpression limit for items with many attributes. Supports optional @DynamoDbVersionAttribute: without a condition expression, the SDK handles versioning automatically; with a condition expression, tempest builds a version check that merges with the user expression, enabling both versioning and custom conditions together. Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
ean5533
approved these changes
Jan 21, 2026
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Summary
Adds
TransactionWriteSet.put()to use DynamoDB PutItem instead of UpdateItem, bypassing the 4KB UpdateExpression limit for items with many attributes. Supports optional versioning: automatic via SDK when no expression is provided, manual merge when a condition expression is supplied.This came from a user request
Changes
itemsToPuttoTransactionWriteSetdata classput()method toTransactionWriteSet.Builder@DynamoDbVersionAttributeTests
Added 5 comprehensive tests covering put without expression, put with expression, versioning support, condition failures, and race conditions.
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