dynamodb/aws.sdk.kotlin.services.dynamodb.model/UpdateItemRequest/Builder/conditionExpression

conditionExpression

var conditionExpression: String?

A condition that must be satisfied in order for a conditional update to succeed.

An expression can contain any of the following:

  • Functions: attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | sizeThese function names are case-sensitive.

  • Comparison operators: = | <> | < | > | <= | >= | BETWEEN | IN

  • Logical operators: AND | OR | NOT

For more information about condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer Guide.