buffer-codec/com.ditchoom.buffer.codec.annotations/LengthPrefixed

LengthPrefixed

@Target(allowedTargets = [AnnotationTarget.VALUE_PARAMETER])

annotation class LengthPrefixed(val prefix: LengthPrefix = LengthPrefix.Short)

Marks a String or payload field as length-prefixed: prefix bytes followed by UTF-8 data. Default is 2-byte big-endian (UShort) prefix.

@ProtocolMessage
data class GreetingMessage(
    @LengthPrefixed val name: String,                         // 2-byte prefix (default)
    @LengthPrefixed(LengthPrefix.Byte) val nickname: String,  // 1-byte prefix (max 255)
    @LengthPrefixed(LengthPrefix.Int) val bio: String,        // 4-byte prefix
)

Properties

prefix

val prefix: LengthPrefix