implicit object Handler extends BSONReader[BSONNumberLike] with BSONWriter[BSONNumberLike] with SafeBSONWriter[BSONNumberLike]
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- def afterRead[U](f: (BSONNumberLike) => 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
- Definition Classes
- BSONReader
- def afterWrite(f: PartialFunction[BSONValue, BSONValue]): BSONWriter[BSONNumberLike]
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 aFailure
.- f
the partial function to apply
- Definition Classes
- BSONWriter
- def afterWriteTry(f: (BSONValue) => Try[BSONValue]): BSONWriter[BSONNumberLike]
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.- f
the safe function to apply
- Definition Classes
- BSONWriter
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def beforeRead(f: PartialFunction[BSONValue, BSONValue]): BSONReader[BSONNumberLike]
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)
- Definition Classes
- BSONReader
- def beforeReadTry(f: (BSONValue) => Try[BSONValue]): BSONReader[BSONNumberLike]
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.- Definition Classes
- BSONReader
- def beforeWrite[U](f: (U) => BSONNumberLike): BSONWriter[U]
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.
- f
the function apply the
U
input value to convert atT
value used to the current writerimport reactivemongo.api.bson.BSONWriter val w: BSONWriter[String] = implicitly[BSONWriter[Int]].beforeWrite(_.size) w.writeTry("foo") // Success: BSONInteger(3)
- Definition Classes
- BSONWriter
- def clone(): AnyRef
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
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- def narrow[U <: BSONNumberLike]: BSONWriter[U]
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]
- U
must be a sub-type of
T
- Definition Classes
- BSONWriter
- Annotations
- @SuppressWarnings()
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- def readOpt(bson: BSONValue): Option[BSONNumberLike]
Tries to produce an instance of
T
from thebson
value, returnsNone
if an error occurred.Tries to produce an instance of
T
from thebson
value, returnsNone
if an error occurred.import reactivemongo.api.bson.{ BSONReader, BSONValue } def fromBSON[T](bson: BSONValue)(implicit r: BSONReader[T]): Option[T] = r.readOpt(bson)
- Definition Classes
- Handler → BSONReader
- def readOrElse(bson: BSONValue, default: => BSONNumberLike): BSONNumberLike
Tries to produce an instance of
T
from thebson
value, returns thedefault
value if an error occurred.Tries to produce an instance of
T
from thebson
value, returns thedefault
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)
- Definition Classes
- BSONReader
- def readTry(bson: BSONValue): Try[BSONNumberLike]
Tries to produce an instance of
T
from thebson
value.Tries to produce an instance of
T
from thebson
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)
- Definition Classes
- Handler → BSONReader
- def safeWrite(n: BSONNumberLike): BSONValue
- Definition Classes
- Handler → SafeBSONWriter
- final def synchronized[T0](arg0: => T0): T0
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- final def wait(): Unit
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- def widen[U >: BSONNumberLike]: 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
- Definition Classes
- BSONReader
- Annotations
- @SuppressWarnings()
- def writeOpt(t: BSONNumberLike): Option[BSONValue]
Tries to produce a BSON value from an instance of
T
, returnsNone
if an error occurred.Tries to produce a BSON value from an instance of
T
, returnsNone
if an error occurred.import reactivemongo.api.bson.{ BSONWriter, BSONValue } def maybeBSON[T](value: T)(implicit w: BSONWriter[T]): Option[BSONValue] = w.writeOpt(value)
- Definition Classes
- BSONWriter
- final def writeTry(value: BSONNumberLike): Success[BSONValue]
- Definition Classes
- SafeBSONWriter