Packages

  • package root
    Definition Classes
    root
  • package reactivemongo
    Definition Classes
    root
  • package api
    Definition Classes
    reactivemongo
  • object ChangeStreams

    Change stream utilities.

    Change stream utilities.

    import scala.concurrent.{ ExecutionContext, Future }

import reactivemongo.api.ChangeStreams.FullDocumentStrategy

import reactivemongo.api.bson.BSONDocument
import reactivemongo.api.bson.collection.BSONCollection

def peekNext(
  coll: BSONCollection,
  strategy: FullDocumentStrategy)(
  implicit ec: ExecutionContext): Future[Option[BSONDocument]] =
  coll.watch[BSONDocument](fullDocumentStrategy = Some(strategy)).
    cursor.headOption

def doIt(coll: BSONCollection)(
  implicit ec: ExecutionContext): Future[Unit] = for {
    _ <- peekNext(coll, FullDocumentStrategy.Default)
    _ <- peekNext(coll, FullDocumentStrategy.UpdateLookup)
  } yield ()
    Definition Classes
    api
    See also

    reactivemongo.api.collections.GenericCollection.watch

  • FullDocumentStrategy

sealed abstract class FullDocumentStrategy extends AnyRef

Defines the lookup strategy of a change stream.

Linear Supertypes
AnyRef, Any
Known Subclasses
Default, UpdateLookup
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. FullDocumentStrategy
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toany2stringadd[FullDocumentStrategy] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (FullDocumentStrategy, B)
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toArrowAssoc[FullDocumentStrategy] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  8. def ensuring(cond: (FullDocumentStrategy) => Boolean, msg: => Any): FullDocumentStrategy
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toEnsuring[FullDocumentStrategy] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (FullDocumentStrategy) => Boolean): FullDocumentStrategy
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toEnsuring[FullDocumentStrategy] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: => Any): FullDocumentStrategy
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toEnsuring[FullDocumentStrategy] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): FullDocumentStrategy
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toEnsuring[FullDocumentStrategy] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def equals(that: Any): Boolean
    Definition Classes
    FullDocumentStrategy → AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  15. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toStringFormat[FullDocumentStrategy] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  16. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. final def hashCode(): Int
    Definition Classes
    FullDocumentStrategy → AnyRef → Any
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. val name: String
  20. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  22. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  24. def toString(): String
    Definition Classes
    FullDocumentStrategy → AnyRef → Any
  25. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  26. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  27. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Deprecated Value Members

  1. def →[B](y: B): (FullDocumentStrategy, B)
    Implicit
    This member is added by an implicit conversion from FullDocumentStrategy toArrowAssoc[FullDocumentStrategy] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromFullDocumentStrategy to any2stringadd[FullDocumentStrategy]

Inherited by implicit conversion StringFormat fromFullDocumentStrategy to StringFormat[FullDocumentStrategy]

Inherited by implicit conversion Ensuring fromFullDocumentStrategy to Ensuring[FullDocumentStrategy]

Inherited by implicit conversion ArrowAssoc fromFullDocumentStrategy to ArrowAssoc[FullDocumentStrategy]

Ungrouped