ZStream

An Emit[R, E, A, B] represents an asynchronous callback that can be called multiple times. The callback can be called with a value of type ZIO[R, Option[E], Chunk[A]], where succeeding with a Chunk[A] indicates to emit those elements, failing with Some[E] indicates to terminate with that error, and failing with None indicates to terminate with an end of stream signal.

Representation of a grouped stream. This allows to filter which groups will be processed. Once this is applied all groups will be processed in parallel and the results will be merged in arbitrary order.

Provides extension methods for streams that are sorted by distinct keys.

A ZStreamConstructor[Input] knows how to construct a ZStream value from an input of type Input. This allows the type of the ZStream value constructed to depend on Input.

Submerges the error case of an Either into the ZStream.

Creates a stream from a single value that will get cleaned up after the stream is consumed

Creates a stream from a single value that will get cleaned up after the stream is consumed

Creates a pure stream from a variable list of values

Locks the execution of the specified stream to the blocking executor. Any streams that are composed after this one will automatically be shifted back to the previous executor.

Concatenates all of the streams in the chunk to one stream.

Prints the specified message to the console for debugging purposes.

The stream that dies with the ex.

The stream that dies with an exception described by msg.

The stream that ends with the zio.Exit value exit.

The empty stream

Accesses the whole environment of the stream.

Accesses the environment of the stream.

Accesses the environment of the stream in the context of a stream.

Accesses the environment of the stream in the context of an effect.

Creates a stream that executes the specified effect but emits no elements.

The stream that always fails with the error

The stream that always fails with cause.

Creates a one-element stream that never fails and executes the finalizer when it ends.

Creates a stream from a zio.stream.ZChannel

Creates a stream from a zio.Chunk of values

Creates a stream from a subscription to a hub.

Creates a stream from a subscription to a hub in the context of a scoped effect. The scoped effect describes subscribing to receive messages from the hub while the stream describes taking messages from the hub.

Creates a stream from a subscription to a hub in the context of a scoped effect. The scoped effect describes subscribing to receive messages from the hub while the stream describes taking messages from the hub.

The hub will be shut down once the stream is closed.

Creates a stream from a subscription to a hub.

The hub will be shut down once the stream is closed.

Creates a stream from a queue of values

Creates a stream from a queue of values. The queue will be shutdown once the stream is closed.

Creates a stream from an arbitrary number of chunks.

Creates a stream from a subscription to a hub.

Creates a stream from a subscription to a hub in the context of a scoped effect. The scoped effect describes subscribing to receive messages from the hub while the stream describes taking messages from the hub.

Creates a stream from a subscription to a hub in the context of a scoped effect. The scoped effect describes subscribing to receive messages from the hub while the stream describes taking messages from the hub.

The hub will be shut down once the stream is closed.

Creates a stream from a subscription to a hub.

The hub will be shut down once the stream is closed.

Creates a stream from a java.io.InputStream

Creates a stream from a scoped java.io.InputStream value.

Creates a stream from a java.io.InputStream. Ensures that the input stream is closed after it is exhausted.

Creates a stream from an iterable collection of values

Creates a stream from an iterable collection of values

Creates a stream from an effect producing a value of type Iterable[A]

Creates a stream from an effect producing a value of type Iterable[A]

Creates a stream from an iterator

Creates a stream from a scoped iterator

Creates a stream from an iterator

Creates a stream from an iterator that may potentially throw exceptions

Creates a stream from an iterator that may potentially throw exceptions

Creates a stream from a Java iterator that may throw exceptions

Creates a stream from a Java iterator that may throw exceptions

Creates a stream from a scoped iterator

Creates a stream from a scoped iterator

Creates a stream from a Java iterator

Creates a stream from a Java iterator

Creates a stream from a Java iterator that may potentially throw exceptions

Creates a stream from a Java iterator that may potentially throw exceptions

Creates a stream from a ZIO effect that pulls elements from another stream. See toPull for reference

Creates a stream from a queue of values

Creates a stream from a queue of values. The queue will be shutdown once the stream is closed.

Creates a stream from a zio.Schedule that does not require any further input. The stream will emit an element for each value output from the schedule, continuing for as long as the schedule continues.

Creates a stream from a zio.stm.TQueue of values.

Creates a stream from an effect producing a value of type A

Creates a stream from an effect producing a value of type A or an empty Stream

The infinite stream of iterative function application: a, f(a), f(f(a)), f(f(f(a))), ...

Logs the specified message at the current log level.

Annotates each log in streams composed after this with the specified log annotation.

Annotates each log in streams composed after this with the specified log annotation.

Annotates each log in streams composed after this with the specified log annotation.

Retrieves the log annotations associated with the current scope.

Logs the specified message at the debug log level.

Logs the specified message at the error log level.

Logs the specified cause as an error.

Logs the specified message at the fatal log level.

Logs the specified message at the informational log level.

Sets the log level for streams composed after this.

Adjusts the label for the logging span for streams composed after this.

Logs the specified message at the trace log level.

Logs the specified message at the warning log level.

Merges a variable list of streams in a non-deterministic fashion. Up to n streams may be consumed in parallel and up to outputBuffer chunks may be buffered by this operator.

Like mergeAll, but runs all streams concurrently.

The stream that never produces any value or fails with any error.

Like unfold, but allows the emission of values to end one step further than the unfolding of the state. This is useful for embedding paginated APIs, hence the name.

Like unfoldChunk, but allows the emission of values to end one step further than the unfolding of the state. This is useful for embedding paginated APIs, hence the name.

Like unfoldChunkZIO, but allows the emission of values to end one step further than the unfolding of the state. This is useful for embedding paginated APIs, hence the name.

Like unfoldZIO, but allows the emission of values to end one step further than the unfolding of the state. This is useful for embedding paginated APIs, hence the name.

Constructs a stream from a range of integers (lower bound included, upper bound not included)

Repeats the provided value infinitely.

Repeats the value using the provided schedule.

Creates a stream from an effect producing a value of type A which repeats forever.

Creates a stream from an effect producing chunks of A values which repeats forever.

Creates a stream from an effect producing chunks of A values until it fails with None.

Creates a stream from an effect producing values of type A until it fails with None.

Creates a stream from an effect producing a value of type A, which is repeated using the specified schedule.

Creates a single-valued stream from a scoped resource

Accesses the specified service in the environment of the effect.

Accesses the service corresponding to the specified key in the environment.

Accesses the specified service in the environment of the stream.

Accesses the specified service in the environment of the stream in the context of a stream.

Accesses the specified service in the environment of the stream in the context of an effect.

Creates a single-valued pure stream

Returns a lazily constructed stream.

Annotates each metric in streams composed after this with the specified tag.

Annotates each metric in streams composed after this with the specified tag.

Annotates each metric in streams composed after this with the specified tag.

Retrieves the metric tags associated with the current scope.

A stream that emits Unit values spaced by the specified duration.

Creates a stream by peeling off the "layers" of a value of type S

Creates a stream by peeling off the "layers" of a value of type S.

Creates a stream by effectfully peeling off the "layers" of a value of type S

Creates a stream by effectfully peeling off the "layers" of a value of type S

Creates a stream produced from an effect

Creates a stream produced from a scoped ZIO

Returns the specified stream if the given condition is satisfied, otherwise returns an empty stream.

Returns the resulting stream when the given PartialFunction is defined for the given value, otherwise returns an empty stream.

Returns the resulting stream when the given PartialFunction is defined for the given effectful value, otherwise returns an empty stream.

Returns the specified stream if the given effectful condition is satisfied, otherwise returns an empty stream.

Creates a stream from an asynchronous callback that can be called multiple times. The optionality of the error type E can be used to signal the end of the stream, by setting it to None.

Creates a stream from an asynchronous callback that can be called multiple times. The registration of the callback returns either a canceler or synchronously returns a stream. The optionality of the error type E can be used to signal the end of the stream, by setting it to None.

Creates a stream from an asynchronous callback that can be called multiple times. The registration of the callback can possibly return the stream synchronously. The optionality of the error type E can be used to signal the end of the stream, by setting it to None.

Creates a stream from an asynchronous callback that can be called multiple times. The registration of the callback itself returns an a scoped resource. The optionality of the error type E can be used to signal the end of the stream, by setting it to None.

Creates a stream from an asynchronous callback that can be called multiple times The registration of the callback itself returns an effect. The optionality of the error type E can be used to signal the end of the stream, by setting it to None.

The default chunk size used by the various combinators and constructors of ZStream.

A stream that contains a single Unit value.

Provides extension methods for streams that are sorted by distinct keys.