Struct StringConverter
- Namespace
- DynaSharp.Serialization
- Assembly
- DynaSharp.dll
Converts string to and from a string value (S).
public readonly struct StringConverter : IDynamoDbConverter<string>
- Implements
- Inherited Members
Remarks
A null string cannot be written as a value: a converter of a nullable type writes {"NULL":true} instead, see
NullableReferenceConverter<T, TConverter>. The empty string is a valid value, except in key attributes, which DynamoDB validates.
Explicit Interface Implementations
Read(ref DynamoDbReader, AttributeType)
Reads the attribute value the reader is positioned on.
static string Read(ref DynamoDbReader reader, AttributeType type)
Parameters
readerDynamoDbReaderThe reader, positioned on the value after ReadStartAttribute() or TryReadStartAttribute(out AttributeType). The caller reads the closing brace afterwards, so the converter must read the value completely (all elements of a list, map or set) and nothing more.
typeAttributeTypeThe DynamoDB type of the value. Check it with Expect(AttributeType, AttributeType), which throws JsonException for types the converter does not support. Null is passed to the converter too, so it can map it to null where that makes sense.
Returns
- string
The value.
Exceptions
- JsonException
typeis not String.
Write(DynamoDbWriter, string)
Writes a value as one complete attribute value, for example with WriteNumber<T>(T).
static void Write(DynamoDbWriter writer, string value)
Parameters
writerDynamoDbWriterThe writer, positioned where a value is expected (after an attribute name, or inside a list). It is a ref struct, so it is never null and needs no check.
valuestringThe value.
Exceptions
- ArgumentNullException
valueis null.