io.r2dbc.postgresql.codec

Class DefaultCodecs

java.lang.Object

io.r2dbc.postgresql.codec.DefaultCodecs

All Implemented Interfaces:

CodecRegistry, Codecs, Iterable<Codec<?>>

public final class DefaultCodecs
extends Object
implements Codecs, CodecRegistry

The default Codec implementation. Delegates to type-specific codec implementations.

Constructor Summary

Constructors

Constructor and Description
DefaultCodecs(io.netty.buffer.ByteBufAllocator byteBufAllocator) Creates a new instance of DefaultCodecs.

Method Summary

Modifier and Type	Method and Description
void	addFirst(Codec<?> codec) Register codec before all other codecs.
void	addLast(Codec<?> codec) Register codec after all other codecs.
<T> T	decode(io.netty.buffer.ByteBuf buffer, int dataType, io.r2dbc.postgresql.message.Format format, Class<? extends T> type) Decode a data to a value.
io.r2dbc.postgresql.client.Parameter	encode(Object value) Encode a value.
io.r2dbc.postgresql.client.Parameter	encodeNull(Class<?> type) Encode a null value.
Iterator<Codec<?>>	iterator()
Class<?>	preferredType(int dataType, io.r2dbc.postgresql.message.Format format) Returns the preferred Java type for a given data type and format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

DefaultCodecs

public DefaultCodecs(io.netty.buffer.ByteBufAllocator byteBufAllocator)

Creates a new instance of DefaultCodecs.

Parameters:

byteBufAllocator - the ByteBufAllocator to use for encoding

Method Detail

addFirst

public void addFirst(Codec<?> codec)

Description copied from interface: CodecRegistry

Register codec before all other codecs.

Specified by:

addFirst in interface CodecRegistry

Parameters:

codec - the codec to register

addLast

public void addLast(Codec<?> codec)

Description copied from interface: CodecRegistry

Register codec after all other codecs.

Specified by:

addLast in interface CodecRegistry

Parameters:

codec - the codec to register

decode

@Nullable
public <T> T decode(@Nullable
                              io.netty.buffer.ByteBuf buffer,
                              int dataType,
                              io.r2dbc.postgresql.message.Format format,
                              Class<? extends T> type)

Description copied from interface: Codecs

Decode a data to a value.

Specified by:

decode in interface Codecs

Type Parameters:

T - the type of item being returned

Parameters:

buffer - the ByteBuf to decode

dataType - the data type of the data

format - the format of the data

type - the type to decode to

Returns:

the decoded value

encode

public io.r2dbc.postgresql.client.Parameter encode(Object value)

Description copied from interface: Codecs

Encode a value.

Specified by:

encode in interface Codecs

Parameters:

value - the value to encode

Returns:

the encoded value

encodeNull

public io.r2dbc.postgresql.client.Parameter encodeNull(Class<?> type)

Description copied from interface: Codecs

Encode a null value.

Specified by:

encodeNull in interface Codecs

Parameters:

type - the type to encode

Returns:

the encoded value

preferredType

public Class<?> preferredType(int dataType,
                              io.r2dbc.postgresql.message.Format format)

Description copied from interface: Codecs

Returns the preferred Java type for a given data type and format.

Specified by:

preferredType in interface Codecs

Parameters:

dataType - the data type fo the data

format - the format of the data

Returns:

the preferred Java type for a given data type and format

iterator

public Iterator<Codec<?>> iterator()

Specified by:

iterator in interface Iterable<Codec<?>>