dynamodb-mapper/aws.sdk.kotlin.hll.dynamodbmapper.expressions/UpdateClauseExpr

UpdateClauseExpr

interface UpdateClauseExpr : Expression

Represents an update action inside an update expression clause

Properties

action

abstract val action: UpdateAction

The type of update to perform

target

abstract val target: AttributePath

The target attribute being affected by the update

value

abstract val value: Expression

The value used in the update action. The interpretation of this value varies depending on the update action.

Functions

open override fun <T> accept(visitor: ExpressionVisitor<T>): T

Accepts a visitor that is traversing an expression tree by dispatching to a subtype implementation. Subtype implementations MUST call the ExpressionVisitor.visit overload for their concrete type (effectively forming a double dispatch) and MUST return the resulting value.