AsyncStreamProducer
Related Doc:
package stream
Called to produce each successive element in the stream.
Called to produce each successive element in the stream. Should throw a EndOfStreamException to indicate EOF.
Equivalent to StreamInput.producer. See the README for concurrency issues.
The core abstract method that must be implemented by each instance, providing the function behavior.
The core abstract method that must be implemented by each instance, providing the function behavior.
Shortcut for a cast to AsyncFunc.
Shortcut for a cast to AsyncFunc. Fails at runtime with ClassCastException if this function is synchronous.
Shortcut for a cast to SyncFunc.
Shortcut for a cast to SyncFunc. Fails at runtime with ClassCastException if this function is asynchronous.
Materializes the stream, including all components linked (transitively) to this one, and starts running it.
Materializes the stream, including all components linked (transitively) to this one, and starts running it.
The same result is produced no matter which stream component is used to call build.
This method may only be called once per stream (see README on the subject of reusing components).
This overload of collect lets you specify an explicit supertype bound of Out (so you cannot upcast past it)
and in exchange get a precise non-existential return type.
This overload of collect lets you specify an explicit supertype bound of Out (so you cannot upcast past it)
and in exchange get a precise non-existential return type.
Creates a new function composing these two, which is synchronous iff both inputs were synchronous.
Returns a new function that passes any exceptions in the original function to handler.
Returns a new function that passes any exceptions in the original function to handler.
The new function still fails with the original exception after the handler has run.
The returned Func is synchronous iff the original func is synchronous.
Concatenate these sources after the current one.
Concatenate these sources after the current one.
This is named concatWith and not simply Concat because SourceOps.concat refers to the unrelated Transform.concat.
Irreversibly join this source with that sink.
Irreversibly join this source with that sink.
Returns true iff this function is either Func.nop or Func.nopAsync.
Returns true iff this function is either Func.nop or Func.nopAsync.
Returns true iff this is a function built by Func.pass.
Returns true iff this is a function built by Func.pass.
Returns true iff this is a SyncFunc
Called if the stream fails.
Called if the stream fails. Equivalent to StreamInput.onError. See the README for concurrency issues.
Called non-concurrently to produce the source elements.
Called non-concurrently to produce the source elements. To indicate EOF, this function needs to throw a EndOfStreamException.
Adds a synchronous recovery stage to this function, which handles both synchronously thrown exceptions, and failing futures returned by asynchronous functions.
Adds an asynchronous recovery stage to this function, which handles both synchronously thrown exceptions, and failing futures returned by asynchronous functions.
Adds an asynchronous recovery stage to this function, which handles both synchronously thrown exceptions, and failing futures returned by asynchronous functions.
This isn't declared to return an AsyncFunc because it can discard the handler and return a SyncFunc if the
original function is e.g. nop or pass.
Returns either B or a Future[B] depending on the type of this Func.
Adds a recovery stage to this function, which handles both synchronously thrown exceptions, and failing futures returned by asynchronous functions.
Adds a recovery stage to this function, which handles both synchronously thrown exceptions, and failing futures returned by asynchronous functions.
If this and handler are both synchronous, then the result will also be synchronous.
Because the handler is a Func, it cannot be a partial function; it must handle all NonFatal exceptions.
Exceptions that don't match the NonFatal extractor will not be passed to the handler.
Suppress all errors matched by the NonFatal extractor.
Irreversibly join this source with that sink.
Irreversibly join this source with that sink.
Irreversibly join this source with that pipe's sink.
Irreversibly join this source with that pipe's sink.
Irreversibly join this source with that sink.
Irreversibly join this source with that sink.
Irreversibly join this source with that transform.
Irreversibly join this source with that transform.
Alias for compose.
Alias for compose. Creates a new function composing these two, which is synchronous iff both inputs were synchronous.
A trait that allows implementing a custom StreamInput that produces items asynchronously.
This often allows writing more elegant code for complex stateful producers.