Trait

reactivemongo.api

WrappedCursor

Related Doc: package api

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trait WrappedCursor[T] extends Cursor[T] with WrappedCursorCompat[T]

Cursor wrapper, to help to define custom cursor classes.

See also

CursorProducer

Linear Supertypes
WrappedCursorCompat[T], Cursor[T], CursorCompatAPI[T], AnyRef, Any
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Inherited
  1. WrappedCursor
  2. WrappedCursorCompat
  3. Cursor
  4. CursorCompatAPI
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
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Abstract Value Members

  1. abstract def wrappee: Cursor[T]

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    The underlying cursor

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to any2stringadd[WrappedCursor[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (WrappedCursor[T], B)

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to ArrowAssoc[WrappedCursor[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. def collect[M[_]](maxDocs: Int, err: ErrorHandler[M[T]])(implicit cbf: CanBuildFrom[M[_], T, M[T]], ec: ExecutionContext): Future[M[T]]

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    Definition Classes
    WrappedCursorCompat
  9. def ensuring(cond: (WrappedCursor[T]) ⇒ Boolean, msg: ⇒ Any): WrappedCursor[T]

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to Ensuring[WrappedCursor[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (WrappedCursor[T]) ⇒ Boolean): WrappedCursor[T]

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to Ensuring[WrappedCursor[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ Any): WrappedCursor[T]

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to Ensuring[WrappedCursor[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): WrappedCursor[T]

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to Ensuring[WrappedCursor[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  14. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  15. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  16. def fold[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, T) ⇒ A)(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all elements retrieved by this cursor, going first to last.

    Applies a binary operator to a start value and all elements retrieved by this cursor, going first to last.

    A

    the result type of the binary operator

    cursor.foldWhile(Nil: Seq[Person])((s, p) => Cursor.Cont(s :+ p),
      { (l, e) => println("last valid value: " + l); Cursor.Fail(e) })
    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited).

    suc

    The binary operator to be applied when the next document is successfully read.

    Definition Classes
    Cursor
  17. def foldBulks[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, Iterator[T]) ⇒ State[A], err: ErrorHandler[A])(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all bulks of documents retrieved by this cursor, going first to last.

    Applies a binary operator to a start value and all bulks of documents retrieved by this cursor, going first to last.

    A

    the result type of the binary operator

    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited). The actual document count can exceed this, when this maximum devided by the batch size given a non-zero remainder.

    suc

    The binary operator to be applied when the next response is successfully read.

    err

    The binary operator to be applied when failing to get the next response. Exception or Fail raised within the suc function cannot be recovered by this error handler.

    Definition Classes
    WrappedCursorCursor
  18. def foldBulksM[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, Iterator[T]) ⇒ Future[State[A]], err: ErrorHandler[A])(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all bulks of documents retrieved by this cursor, going first to last.

    Applies a binary operator to a start value and all bulks of documents retrieved by this cursor, going first to last.

    A

    the result type of the binary operator

    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited). The actual document count can exceed this, when this maximum devided by the batch size given a non-zero remainder.

    suc

    The binary operator to be applied when the next response is successfully read. This must be safe, and any error must be returned as Future.failed[State[A]].

    err

    The binary operator to be applied when failing to get the next response. Exception or Fail raised within the suc function cannot be recovered by this error handler.

    Definition Classes
    WrappedCursorCursor
  19. def foldResponses[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, Response) ⇒ State[A], err: ErrorHandler[A])(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all responses handled by this cursor, going first to last.

    Applies a binary operator to a start value and all responses handled by this cursor, going first to last.

    A

    the result type of the binary operator

    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited). The actual document count can exceed this, when this maximum devided by the batch size given a non-zero remainder.

    suc

    The binary operator to be applied when the next response is successfully read.

    err

    The binary operator to be applied when failing to get the next response. Exception or Fail raised within the suc function cannot be recovered by this error handler.

    Definition Classes
    WrappedCursorCursor
  20. def foldResponsesM[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, Response) ⇒ Future[State[A]], err: ErrorHandler[A])(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all responses handled by this cursor, going first to last.

    Applies a binary operator to a start value and all responses handled by this cursor, going first to last.

    A

    the result type of the binary operator

    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited). The actual document count can exceed this, when this maximum devided by the batch size given a non-zero remainder.

    suc

    The binary operator to be applied when the next response is successfully read. This must be safe, and any error must be returned as Future.failed[State[A]].

    err

    The binary operator to be applied when failing to get the next response. Exception or Fail raised within the suc function cannot be recovered by this error handler.

    Definition Classes
    WrappedCursorCursor
  21. def foldWhile[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, T) ⇒ State[A], err: ErrorHandler[A])(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all elements retrieved by this cursor, going first to last.

    Applies a binary operator to a start value and all elements retrieved by this cursor, going first to last.

    A

    the result type of the binary operator

    cursor.foldWhile(Nil: Seq[Person])((s, p) => Cursor.Cont(s :+ p),
      { (l, e) => println("last valid value: " + l); Cursor.Fail(e) })
    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited).

    suc

    The binary operator to be applied when the next document is successfully read.

    err

    The binary operator to be applied when failing to get the next response. Exception or Fail raised within the suc function cannot be recovered by this error handler.

    Definition Classes
    WrappedCursorCursor
  22. def foldWhileM[A](z: ⇒ A, maxDocs: Int = 1)(suc: (A, T) ⇒ Future[State[A]], err: ErrorHandler[A])(implicit ec: ExecutionContext): Future[A]

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    Applies a binary operator to a start value and all elements retrieved by this cursor, going first to last.

    Applies a binary operator to a start value and all elements retrieved by this cursor, going first to last.

    A

    the result type of the binary operator

    cursor.foldWhileM(Nil: Seq[Person])(
      (s, p) => Future.successful(Cursor.Cont(s :+ p)),
      { (l, e) => Future {
        println("last valid value: " + l)
        Cursor.Fail(e)
      })
    z

    the initial value

    maxDocs

    the maximum number of documents to be retrieved (-1 for unlimited).

    suc

    The binary operator to be applied when the next document is successfully read. This must be safe, and any error must be returned as Future.failed[State[A]].

    err

    The binary operator to be applied when failing to get the next response. Exception or Fail raised within the suc function cannot be recovered by this error handler.

    Definition Classes
    WrappedCursorCursor
  23. def formatted(fmtstr: String): String

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to StringFormat[WrappedCursor[T]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  24. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  25. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  26. def head(implicit ec: ExecutionContext): Future[T]

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    Returns the first document matching the query, or fails with Cursor.NoSuchResultException if none.

    Returns the first document matching the query, or fails with Cursor.NoSuchResultException if none.

    val cursor = collection.find(query, filter).cursor[BSONDocument]
    // return option of the first element.
    val first: Future[BSONDocument] = cursor.head
    Definition Classes
    WrappedCursorCursor
  27. def headOption(implicit ec: ExecutionContext): Future[Option[T]]

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    Returns the first document matching the query, if any.

    Returns the first document matching the query, if any.

    val cursor = collection.find(query, filter).cursor[BSONDocument]
    // return option of the first element.
    val maybeFirst: Future[Option[BSONDocument]] = cursor.headOption
    Definition Classes
    WrappedCursorCursor
  28. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  29. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  30. final def notify(): Unit

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    Definition Classes
    AnyRef
  31. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  32. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  33. def toString(): String

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    Definition Classes
    AnyRef → Any
  34. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  35. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  36. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  37. def [B](y: B): (WrappedCursor[T], B)

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    Implicit information
    This member is added by an implicit conversion from WrappedCursor[T] to ArrowAssoc[WrappedCursor[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from WrappedCursorCompat[T]

Inherited from Cursor[T]

Inherited from CursorCompatAPI[T]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from WrappedCursor[T] to any2stringadd[WrappedCursor[T]]

Inherited by implicit conversion StringFormat from WrappedCursor[T] to StringFormat[WrappedCursor[T]]

Inherited by implicit conversion Ensuring from WrappedCursor[T] to Ensuring[WrappedCursor[T]]

Inherited by implicit conversion ArrowAssoc from WrappedCursor[T] to ArrowAssoc[WrappedCursor[T]]

Ungrouped