[POC] Optimistic Locking for Delete Operations

Author: anasatirbasa

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/enhanced/dynamodb/model/TransactDeleteItemEnhancedRequest.java

@@ -219,18 +219,16 @@ public Builder returnValuesOnConditionCheckFailure(String returnValuesOnConditio
         /**
          * Adds optimistic locking to this transactional delete request.
          * <p>
-         * This method applies a condition expression that ensures the delete operation only succeeds
-         * if the version attribute of the item matches the provided expected value. If the condition
-         * fails, the entire transaction will be cancelled.
+         * This method applies a condition expression that ensures the delete operation only succeeds if the version attribute of
+         * the item matches the provided expected value. If the condition fails, the entire transaction will be cancelled.
          *
          * @param versionValue the expected version value that must match for the delete to succeed
          * @param versionAttributeName the name of the version attribute in the DynamoDB table
          * @return a builder of this type with optimistic locking condition applied
          * @throws IllegalArgumentException if any parameter is null
          */
         public Builder withOptimisticLocking(AttributeValue versionValue, String versionAttributeName) {
-            Expression optimisticLockingCondition = OptimisticLockingHelper.createVersionCondition(versionValue, versionAttributeName);
-            return conditionExpression(optimisticLockingCondition);
+            return conditionExpression(OptimisticLockingHelper.createVersionCondition(versionValue, versionAttributeName));
         }
 
         public TransactDeleteItemEnhancedRequest build() {

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/enhanced/dynamodb/model/TransactWriteItemsEnhancedRequest.java

@@ -248,7 +248,8 @@ public <T> Builder addDeleteItem(MappedTableResource<T> mappedTableResource, Del
          * {@link TransactDeleteItemEnhancedRequest}.
          * <p>
          * For optimistic locking support, use
-         * {@link TransactDeleteItemEnhancedRequest.Builder#withOptimisticLocking(software.amazon.awssdk.services.dynamodb.model.AttributeValue, String)}
+         * {@link TransactDeleteItemEnhancedRequest.Builder#withOptimisticLocking(
+         * software.amazon.awssdk.services.dynamodb.model.AttributeValue, String)}
          * to create a request with version checking conditions before adding it to the transaction.
          *
          * @param mappedTableResource the table where the key is located