io.flutter.plugin.common

Interface MessageCodec<T>

All Known Implementing Classes:

BinaryCodec, JSONMessageCodec, StandardMessageCodec, StringCodec

public interface MessageCodec<T>

A message encoding/decoding mechanism.

Both operations throw IllegalArgumentException, if conversion fails.

Method Summary

Modifier and Type	Method and Description
T	decodeMessage(ByteBuffer message) Decodes the specified message from binary.
ByteBuffer	encodeMessage(T message) Encodes the specified message into binary.

Method Detail

encodeMessage

@Nullable
ByteBuffer encodeMessage(@Nullable
                                   T message)

Encodes the specified message into binary.

Parameters:

message - the T message, possibly null.

Returns:

a ByteBuffer containing the encoding between position 0 and the current position, or null, if message is null.

decodeMessage

@Nullable
T decodeMessage(@Nullable
                          ByteBuffer message)

Decodes the specified message from binary.

Parameters:

message - the ByteBuffer message, possibly null.

Returns:

a T value representation of the bytes between the given buffer's current position and its limit, or null, if message is null.