Packages

trait BSONReader[T] extends AnyRef

A reader that produces an instance of T from a subtype of BSONValue.

Self Type
BSONReader[T]
Linear Supertypes
AnyRef, Any
Known Subclasses
Handler, BSONDocumentHandler, BSONDocumentReader, BSONHandler, Handler, Handler
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. BSONReader
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def readTry(bson: BSONValue): Try[T]

    Tries to produce an instance of T from the bson value.

    Tries to produce an instance of T from the bson value.

    import scala.util.Try
import reactivemongo.api.bson.{ BSONReader, BSONValue }

def fromBSON[T](bson: BSONValue)(implicit r: BSONReader[T]): Try[T] =
  r.readTry(bson)

Concrete 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 BSONReader[T] to any2stringadd[BSONReader[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (BSONReader[T], B)
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to ArrowAssoc[BSONReader[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. def afterRead[U](f: (T) ⇒ U): BSONReader[U]

    Prepares a BSONReader that returns the result of applying f on the result of this reader.

    Prepares a BSONReader that returns the result of applying f on the result of this reader.

    import scala.util.Try
import reactivemongo.api.bson.{ BSONReader, BSONValue }

// Try to return an integer + 1,
// from any T that can be read from BSON
// and is a numeric type
def fromBSON[T](bson: BSONValue)(
  implicit r: BSONReader[T], n: Numeric[T]): Try[Int] = {
  val r2: BSONReader[Int] = r.afterRead { v => n.toInt(v) + 1 }
  r2.readTry(bson)
}
    f

    the function to apply

  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. def beforeRead(f: PartialFunction[BSONValue, BSONValue]): BSONReader[T]

    Prepares a BSONReader that transforms the input BSON value, using the given f function, before passing the transformed BSON value to the current reader.

    Prepares a BSONReader that transforms the input BSON value, using the given f function, before passing the transformed BSON value to the current reader.

    import reactivemongo.api.bson.{
  BSONReader, BSONInteger, BSONNull, BSONString
}

val normalizingReader: BSONReader[Int] =
  implicitly[BSONReader[Int]].beforeRead {
    case BSONNull => BSONInteger(-1)
    case BSONString(s) => BSONInteger(s.size)
    // other values are unchanged
  }

normalizingReader.readOpt(BSONNull) // Some(-1)
normalizingReader.readTry(BSONString("foo")) // Success(3)
normalizingReader.readOpt(BSONInteger(4)) // unchanged: Some(4)
  9. def beforeReadTry(f: (BSONValue) ⇒ Try[BSONValue]): BSONReader[T]

    Prepares a BSONReader that transforms the input BSON value, using the given f function, before passing the transformed BSON value to the current reader.

  10. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  11. def ensuring(cond: (BSONReader[T]) ⇒ Boolean, msg: ⇒ Any): BSONReader[T]
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to Ensuring[BSONReader[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: (BSONReader[T]) ⇒ Boolean): BSONReader[T]
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to Ensuring[BSONReader[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: Boolean, msg: ⇒ Any): BSONReader[T]
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to Ensuring[BSONReader[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: Boolean): BSONReader[T]
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to Ensuring[BSONReader[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  17. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  18. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  19. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  20. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  21. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  22. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. def readOpt(bson: BSONValue): Option[T]

    Tries to produce an instance of T from the bson value, returns None if an error occurred.

    Tries to produce an instance of T from the bson value, returns None if an error occurred.

    import reactivemongo.api.bson.{ BSONReader, BSONValue }

def fromBSON[T](bson: BSONValue)(implicit r: BSONReader[T]): Option[T] =
  r.readOpt(bson)
  25. def readOrElse(bson: BSONValue, default: ⇒ T): T

    Tries to produce an instance of T from the bson value, returns the default value if an error occurred.

    Tries to produce an instance of T from the bson value, returns the default value if an error occurred.

    import reactivemongo.api.bson.{ BSONReader, BSONValue }

def fromBSON[T](bson: BSONValue, v: T)(implicit r: BSONReader[T]): T =
  r.readOrElse(bson, v)
  26. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  27. def toString(): String
    Definition Classes
    AnyRef → Any
  28. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  31. def widen[U >: T]: BSONReader[U]

    Widens this reader for a compatible type U.

    Widens this reader for a compatible type U.

    import reactivemongo.api.bson.BSONReader

val listReader: BSONReader[List[String]] =
  implicitly[BSONReader[List[String]]]

val widenAsSeqReader: BSONReader[Seq[String]] =
  listReader.widen[Seq[String]]
  // as Seq[String] >: List[String]
    U

    must be a super-type of T

    Annotations
    @SuppressWarnings()
  32. def →[B](y: B): (BSONReader[T], B)
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to ArrowAssoc[BSONReader[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from BSONReader[T] to StringFormat[BSONReader[T]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

Inherited from AnyRef

Inherited from Any

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

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

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

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

Ungrouped