A Writable is a source of bytes that can be written to an OutputStream.
Essentially a push-based version of java.io.InputStream
, that allows an implementation to guarantee that cleanup logic runs after the bytes are written.
Writable is also much easier to implement than java.io.InputStream
: any code that previously wrote output to an ByteArrayOutputStream
or StringBuilder
can trivially satisfy the Writable interface. That makes Writable very convenient to use for allowing zero-friction zero-overhead streaming data exchange between different libraries.
Writable comes with implicit constructors from Array[Byte]
, String
and InputStream
, and is itself a tiny interface with minimal functionality. Libraries using Writable are expected to extend it to provide additional methods or additional implicit constructors that make sense in their context.
Attributes
- Companion
- object
- Graph
-
- Supertypes
-
class Any
- Known subtypes
-
trait Readableclass ByteArrayReadableclass ByteBufferReadableclass InputStreamReadableclass StringReadableclass ByteArrayWritableclass ByteBufferWritableclass StringWritabletrait Sourcetrait SeekableSourceclass ChannelSourceclass ChannelSourceclass WritableSource[T]