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func AttributeNotExists(nameBuilder NameBuilder) ConditionBuilder

AttributeNotExists returns a ConditionBuilder representing the result of the attribute_not_exists function in DynamoDB Condition Expressions. The resulting ConditionBuilder can be used as a part of other Condition Expressions or as an argument to the WithCondition() method for the Builder struct.


// condition represents the boolean condition of whether the item // attribute "Age" exists or not condition := expression.AttributeNotExists(expression.Name("Age")) // Used in another Condition Expression anotherCondition := expression.Not(condition) // Used to make an Builder builder := expression.NewBuilder().WithCondition(condition)

Expression Equivalent:

expression.AttributeNotExists(expression.Name("Age")) "attribute_not_exists (Age))"


NameBuilder represents a name of a top level item attribute or a nested attribute. Since NameBuilder represents a DynamoDB Operand, it implements the OperandBuilder interface. Methods and functions in the package take NameBuilder as an argument and establishes relationships between operands. NameBuilder should only be initialized using the function Name().


// Create a NameBuilder representing the item attribute "aName" nameBuilder := expression.Name("aName")


ConditionBuilder represents Condition Expressions and Filter Expressions in DynamoDB. ConditionBuilders are one of the building blocks of the Builder struct. Since Filter Expressions support all the same functions and formats as Condition Expressions, ConditionBuilders represents both types of Expressions. More Information at: More Information on Filter Expressions:

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