reactivemongo.api.bson.BSONWriter
See theBSONWriter companion object A writer that produces a subtype of BSONValue from an instance of T.
Attributes
- Companion:
- object
- Graph
- Supertypes
class Object
trait Matchable
class Any
- Known subtypes
Members list
Concise view
Value members
Tries to produce a BSON value from an instance of T.
Tries to produce a BSON value from an instance of T.
import scala.util.Try
import reactivemongo.api.bson.{ BSONWriter, BSONValue }
def toBSON[T](value: T)(implicit w: BSONWriter[T]): Try[BSONValue] =
w.writeTry(value)
Attributes
Prepares a BSON writer that returns the result of applying f on the BSON value from this writer.
Prepares a BSON writer that returns the result of applying f on the BSON value from this writer.
If the f function is not defined for a BSONValue,
it will results in a Failure.
Attributes
- f
the partial function to apply
Prepares a BSON writer that returns the result of applying f on the BSON value from this writer.
Prepares a BSON writer that returns the result of applying f on the BSON value from this writer.
Attributes
- f
the safe function to apply
Prepares a BSON writer that converts the input before calling
the current writer.
Prepares a BSON writer that converts the input before calling
the current writer.
Attributes
- f
the function apply the U input value to convert at T value used to the current writer
import reactivemongo.api.bson.BSONWriter
val w: BSONWriter[String] =
implicitly[BSONWriter[Int]].beforeWrite(_.size)
w.writeTry("foo") // Success: BSONInteger(3)
Narrows this writer for a compatible type U.
Narrows this writer for a compatible type U.
import reactivemongo.api.bson.BSONWriter
val listWriter: BSONWriter[Seq[String]] =
implicitly[BSONWriter[Seq[String]]]
val narrowAsListWriter: BSONWriter[List[String]] =
listWriter.narrow[List[String]]
// as List[String] <: Seq[String]
Attributes
- U
must be a sub-type of T
Tries to produce a BSON value from an instance of T,
returns None if an error occurred.
Tries to produce a BSON value from an instance of T,
returns None if an error occurred.
import reactivemongo.api.bson.{ BSONWriter, BSONValue }
def maybeBSON[T](value: T)(implicit w: BSONWriter[T]): Option[BSONValue] =
w.writeOpt(value)
Attributes