RSocketRequester.MetadataSpec (Spring Framework 5.2.12.RELEASE API)

Type Parameters:
S - a self reference to the spec type
All Known Subinterfaces:
RSocketRequester.RequestSpec
Enclosing interface:
RSocketRequester
```
public static interface RSocketRequester.MetadataSpec<S extends RSocketRequester.MetadataSpec<S>>
```
Spec for providing additional composite metadata entries.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`S`	`metadata(Object metadata, MimeType mimeType)`	Use this to append additional metadata entries when using composite metadata.

- Method Detail
  - metadata
```
S metadata(Object metadata,
           MimeType mimeType)
```
    Use this to append additional metadata entries when using composite metadata. An IllegalArgumentException is raised if this method is used when not using composite metadata. The metadata value be a concrete value or any producer of a single value that can be adapted to a Publisher via ReactiveAdapterRegistry.
    Parameters:
    metadata - an Object to be encoded with a suitable Encoder, or a DataBuffer
    mimeType - the mime type that describes the metadata