ConditionCheck class

Represents a request to perform a check that an item exists or to check the condition of specific attributes of the item.

Constructors

ConditionCheck({required String conditionExpression, required Map<String, AttributeValue> key, required String tableName, Map<String, String>? expressionAttributeNames, Map<String, AttributeValue>? expressionAttributeValues, ReturnValuesOnConditionCheckFailure? returnValuesOnConditionCheckFailure})

Properties

conditionExpression → String

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

final

expressionAttributeNames → Map<String, String>?

One or more substitution tokens for attribute names in an expression.

final

expressionAttributeValues → Map<String, AttributeValue>?

One or more values that can be substituted in an expression.

final

hashCode → int

The hash code for this object.

no setter, inherited

key → Map<String, AttributeValue>

The primary key of the item to be checked. Each element consists of an attribute name and a value for that attribute.

final

returnValuesOnConditionCheckFailure → ReturnValuesOnConditionCheckFailure?

Use ReturnValuesOnConditionCheckFailure to get the item attributes if the ConditionCheck condition fails. For ReturnValuesOnConditionCheckFailure, the valid values are: NONE and ALL_OLD.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

tableName → String

Name of the table for the check item request.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited