io.asyncer.r2dbc.mysql.codec

Interface ParametrizedCodec<T>

Type Parameters:

T - the type without parameter that is handled by this codec.

All Superinterfaces:

Codec<T>

All Known Subinterfaces:

MassiveParametrizedCodec<T>

public interface ParametrizedCodec<T>
extends Codec<T>

Special codec for decode values with parameterized types.

It also can encode and decode values without parameter.

Method Summary

Modifier and Type	Method and Description
boolean	canDecode(MySqlColumnMetadata metadata, ParameterizedType target) Check if can decode the field value as specified ParameterizedType.
@Nullable Object	decode(io.netty.buffer.ByteBuf value, MySqlColumnMetadata metadata, ParameterizedType target, boolean binary, CodecContext context) Decode a ByteBuf as specified ParameterizedType.

Methods inherited from interface io.asyncer.r2dbc.mysql.codec.Codec

canDecode, canEncode, decode, encode

Method Detail

decode

@Nullable
@Nullable Object decode(io.netty.buffer.ByteBuf value,
                                  MySqlColumnMetadata metadata,
                                  ParameterizedType target,
                                  boolean binary,
                                  CodecContext context)

Decode a ByteBuf as specified ParameterizedType.

Parameters:

value - the ByteBuf.

metadata - the metadata of the column.

target - the specified ParameterizedType.

binary - if the value should be decoded by binary protocol.

context - the codec context.

Returns:

the decoded result.

canDecode

boolean canDecode(MySqlColumnMetadata metadata,
                  ParameterizedType target)

Check if can decode the field value as specified ParameterizedType.

Parameters:

metadata - the metadata of the column.

target - the specified ParameterizedType.

Returns:

if can decode.