Packages

p

com.lightbend.lagom

projection

package projection

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Type Members

  1. final class Projection extends ProjectionSerializable

    Current status of a projection.

    Current status of a projection.

    Annotations
    @ApiMayChange()
  2. trait ProjectionSerializable extends AnyRef

    INTERNAL API.

    INTERNAL API. Marker trait for projection serializers.

    Annotations
    @ApiMayChange() @InternalApi()
  3. sealed trait Started extends Status
  4. final class State extends ProjectionSerializable

    The state of a projections registry is a collection of projections with extra data indicating the name of the projection, and details about its workers.

    The state of a projections registry is a collection of projections with extra data indicating the name of the projection, and details about its workers. Note that many projections may operate over the same journal. Each worker includes information about the particular tagName it is tracking. Note that multiple workers may track the same tagName because each worker is part of a different projection. Each worker also has a key which is unique across the whole cluster. Finally, the data related to a worker that's part of the State includes a requested status and an observed status for the worker.

    Annotations
    @ApiMayChange()
  5. sealed trait Status extends ProjectionSerializable

    Super type for a worker status ADT.

    Super type for a worker status ADT. Possible values are

    Stopped

    and

    Started

    Stopped }}}

    Annotations
    @ApiMayChange()
  6. sealed trait Stopped extends Status
  7. final class Worker extends ProjectionSerializable

    Metadata of a Worker.

    Metadata of a Worker. The existence of this data doesn't mean the actual worker instance exists. This metadata identifies the tag this worker will consume, a unique identifier (aka the key) and both the requested and the observed status.

    Both the requested and observed status are eventually consistent since this metadata is being replicated across the cluster and may have been edited in other nodes when being read in the local node.

    Annotations
    @ApiMayChange()

Value Members

  1. object Projection
  2. object Started extends Started with Product with Serializable

    See

    See

    Status
  3. object State
  4. object Stopped extends Stopped with Product with Serializable

    See

    See

    Status
  5. object Worker

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