An ExpressionBuilder instance builds the expression using calculated placeholders by referred attribute names and values.
Each instance must correspond to the DynamoDB requests that using the expression.
If instances are used across different requests, the names and values that substitutes the placeholders may misplaced.
An ExpressionBuilder instance builds the expression using calculated placeholders by referred attribute names and values.
Each instance must correspond to the DynamoDB requests that using the expression. If instances are used across different requests, the names and values that substitutes the placeholders may misplaced.