OFormat

abstract def reads(json: JsValue): JsResult[A]

Convert the JsValue into a A

abstract def writes(o: A): JsObject

Converts the A value into a JsValue.

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def andThen[B](rb: Reads[B])(implicit witness: <:<[A, JsValue]): Reads[B]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def collect[B](error: JsonValidationError)(f: PartialFunction[A, B]): Reads[B]

def composeWith[B <: JsValue](rb: Reads[B]): Reads[A]

Creates a new Reads, which first passes the input JSON to rb, and then it executes this Reads on the pre-processed JSON (if rb has successfully handled the input JSON).

def contramap[B](f: (B) ⇒ A): OWrites[B]

Returns a new instance that first converts a B value to a A one, before converting this A value into a JsValue.

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def filter(error: JsonValidationError)(f: (A) ⇒ Boolean): Reads[A]

def filter(f: (A) ⇒ Boolean): Reads[A]

def filterNot(error: JsonValidationError)(f: (A) ⇒ Boolean): Reads[A]

def filterNot(f: (A) ⇒ Boolean): Reads[A]

def finalize(): Unit

def flatMap[B](f: (A) ⇒ Reads[B]): Reads[B]

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def map[B](f: (A) ⇒ B): Reads[B]

Create a new Reads which maps the value produced by this Reads.

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def orElse(v: Reads[A]): Reads[A]

Creates a new Reads, based on this one, which first executes this Reads' logic then, if this Reads resulted in a JsError, runs the second Reads on the JsValue.

def preprocess(f: PartialFunction[JsValue, JsValue]): Reads[A]

Creates a new Reads, which first transforms the input JSON using the given tranformer, and then it executes this Reads on the pre-processed JSON.

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

def transform(transformer: OWrites[JsObject]): OWrites[A]

Transforms the resulting JsValue using a Writes[JsValue].

def transform(transformer: (JsObject) ⇒ JsObject): OWrites[A]

Transforms the resulting JsObject using a transformer function.

def transform(transformer: Writes[JsValue]): Writes[A]

Transforms the resulting JsValue using a Writes[JsValue].

def transform(transformer: (JsValue) ⇒ JsValue): Writes[A]

Transforms the resulting JsValue using transformer function.

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

def widen[B >: A]: Reads[B]

Widen this Reads.

import play.api.libs.json.Reads

def simple(r: Reads[Dog]): Reads[Animal] = r.widen[Animal]

def combine(dog: Reads[Dog], cat: Reads[Cat]): Reads[Animal] =
  dog.orElse(cat).orElse(Reads.failed[Animal]("Unsupported Animal"))

def compose[B <: JsValue](rb: Reads[B]): Reads[A]