Class ValidationException

Namespace

DynaSharp

Assembly

DynaSharp.dll

DynamoDB rejected the request: a malformed expression, a key that does not match the schema, an empty key, an item over 400 KB. Not retried: the request must change.

public sealed class ValidationException : DynamoDbException, ISerializable

Inheritance

object

Exception

DynamoDbException

ValidationException

Implements

ISerializable

Inherited Members

DynamoDbException.ToString()

DynamoDbException.ErrorCode

DynamoDbException.StatusCode

DynamoDbException.RequestId

DynamoDbException.OperationName

DynamoDbException.TableName

DynamoDbException.IsTransient

Exception.GetBaseException()

Exception.GetType()

Exception.TargetSite

Exception.Data

Exception.InnerException

Exception.HelpLink

Exception.Source

Exception.HResult

Exception.StackTrace

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Remarks

A command of the table API writes every attribute name and value as a placeholder, so the message of the service talks about #n2 and :v3. For such a failure Expressions, ExpressionNames and ExpressionValueTypes say what those stand for, and Message gains one line with the same content. Values are never included, only their types, so the exception is as safe to log as any other. A request of the request API has none of this: its caller wrote the expressions. IsTransient is false.

Constructors

ValidationException(string, string?, HttpStatusCode)

Initializes a new instance of the ValidationException class.

public ValidationException(string message, string? requestId = null, HttpStatusCode statusCode = HttpStatusCode.BadRequest)

Parameters

message string

The error message returned by DynamoDB.

requestId string

The AWS request id, if known.

statusCode HttpStatusCode

The HTTP status code of the response.

Properties

ExpressionNames

Gets what the name placeholders of Expressions stand for, for example #n0 with status.

public IReadOnlyDictionary<string, string>? ExpressionNames { get; }

Property Value

IReadOnlyDictionary<string, string>

ExpressionValueTypes

Gets the type descriptors of the value placeholders of Expressions, for example :v0 with S. The values themselves are left out on purpose.

public IReadOnlyDictionary<string, string>? ExpressionValueTypes { get; }

Property Value

IReadOnlyDictionary<string, string>

Expressions

Gets the expressions of the rejected command as sent, by the name of the request member, for example ConditionExpression with #n0 = :v0. null for a failure of the request API, and for a command without expressions.

public IReadOnlyDictionary<string, string>? Expressions { get; }

Property Value

IReadOnlyDictionary<string, string>

Message

Gets the message of the service, followed for a command by a line that explains the placeholders.

public override string Message { get; }

Property Value

string