java.lang.Object
- org.springframework.core.codec.AbstractDecoder<T>
- - org.springframework.core.codec.AbstractDataBufferDecoder<DataBuffer>
  - - org.springframework.core.codec.DataBufferDecoder

All Implemented Interfaces:
Decoder<DataBuffer>
```
public class DataBufferDecoder
extends AbstractDataBufferDecoder<DataBuffer>
```
Simple pass-through decoder for DataBuffers.
Note: The data buffers should be released via DataBufferUtils.release(DataBuffer) after they have been consumed. In addition, if using Flux or Mono operators such as flatMap, reduce, and others that prefetch, cache, and skip or filter out data items internally, please add doOnDiscard(PooledDataBuffer.class, DataBufferUtils::release) to the composition chain to ensure cached data buffers are released prior to an error or cancellation signal.
Since:
5.0
Author:
Arjen Poutsma, Rossen Stoyanchev

Field Summary
- Fields inherited from class org.springframework.core.codec.AbstractDecoder
  logger

Constructor Summary
Constructors
Constructor Description
DataBufferDecoder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`canDecode(ResolvableType elementType, MimeType mimeType)`	Whether the decoder supports the given target element type and the MIME type of the source stream.
`reactor.core.publisher.Flux<DataBuffer>`	`decode(org.reactivestreams.Publisher<DataBuffer> input, ResolvableType elementType, MimeType mimeType, Map<String,Object> hints)`	Decode a `DataBuffer` input stream into a Flux of `T`.
`DataBuffer`	`decode(DataBuffer buffer, ResolvableType elementType, MimeType mimeType, Map<String,Object> hints)`	Decode a data buffer to an Object of type T.

Methods inherited from class org.springframework.core.codec.AbstractDataBufferDecoder
decodeDataBuffer, decodeToMono, getMaxInMemorySize, setMaxInMemorySize

Methods inherited from class org.springframework.core.codec.AbstractDecoder
getDecodableMimeTypes, getLogger, setLogger

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DataBufferDecoder
```
public DataBufferDecoder()
```
- Method Detail
  - canDecode
```
public boolean canDecode(ResolvableType elementType,
                         @Nullable
                         MimeType mimeType)
```
    Description copied from interface: Decoder
    Whether the decoder supports the given target element type and the MIME type of the source stream.
    Specified by:
    canDecode in interface Decoder<DataBuffer>
    Overrides:
    canDecode in class AbstractDecoder<DataBuffer>
    Parameters:
    elementType - the target element type for the output stream
    mimeType - the mime type associated with the stream to decode (can be null if not specified)
    Returns:
    true if supported, false otherwise
  - decode
```
public reactor.core.publisher.Flux<DataBuffer> decode(org.reactivestreams.Publisher<DataBuffer> input,
                                                      ResolvableType elementType,
                                                      @Nullable
                                                      MimeType mimeType,
                                                      @Nullable
                                                      Map<String,Object> hints)
```
    Description copied from interface: Decoder
    Decode a DataBuffer input stream into a Flux of T.
    Specified by:
    decode in interface Decoder<DataBuffer>
    Overrides:
    decode in class AbstractDataBufferDecoder<DataBuffer>
    Parameters:
    input - the DataBuffer input stream to decode
    elementType - the expected type of elements in the output stream; this type must have been previously passed to the Decoder.canDecode(org.springframework.core.ResolvableType, org.springframework.util.MimeType) method and it must have returned true.
    mimeType - the MIME type associated with the input stream (optional)
    hints - additional information about how to do encode
    Returns:
    the output stream with decoded elements
  - decode
```
public DataBuffer decode(DataBuffer buffer,
                         ResolvableType elementType,
                         @Nullable
                         MimeType mimeType,
                         @Nullable
                         Map<String,Object> hints)
```
    Description copied from interface: Decoder
    Decode a data buffer to an Object of type T. This is useful for scenarios, that distinct messages (or events) are decoded and handled individually, in fully aggregated form.
    Parameters:
    buffer - the DataBuffer to decode
    elementType - the expected output type
    mimeType - the MIME type associated with the data
    hints - additional information about how to do encode
    Returns:
    the decoded value, possibly null

Class DataBufferDecoder

Field Summary

Fields inherited from class org.springframework.core.codec.AbstractDecoder

Constructor Summary

Method Summary

Methods inherited from class org.springframework.core.codec.AbstractDataBufferDecoder

Methods inherited from class org.springframework.core.codec.AbstractDecoder

Methods inherited from class java.lang.Object

Constructor Detail

DataBufferDecoder

Method Detail

canDecode

decode

decode