c

org.json4s

ExtractableJsonAstNode

class ExtractableJsonAstNode extends AnyRef

Source
ExtractableJsonAstNode.scala
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Instance Constructors

  1. new ExtractableJsonAstNode(jv: JValue)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def as[A](implicit reader: Reader[A]): A

    Given that an implicit reader of type A is in scope It will deserialize the org.json4s.JsonAST.JValue to an object of type A

    Given that an implicit reader of type A is in scope It will deserialize the org.json4s.JsonAST.JValue to an object of type A

    Example:

    case class Person(name: String)
    implicit object PersonReader extends Reader[Person] {
      def read(json: JValue): Person = Person((json \ "name").extract[String])
    }
    JObject(JField("name", JString("Joe")) :: Nil).as[Person]
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  9. def extract[A](implicit formats: Formats, mf: Manifest[A]): A

    Extract a value from a JSON.

    Extract a value from a JSON.

    Value can be:

    • case class
    • primitive (String, Boolean, Date, etc.)
    • supported collection type (List, Seq, Map[String, _], Set)
    • any type which has a configured custom deserializer

    Example:

    case class Person(name: String)
    JObject(JField("name", JString("joe")) :: Nil).extract[Person] == Person("joe")
    

  10. def extractOpt[A](implicit formats: Formats, mf: Manifest[A]): Option[A]

    Extract a value from a JSON.

    Extract a value from a JSON.

    Value can be:

    • case class
    • primitive (String, Boolean, Date, etc.)
    • supported collection type (List, Seq, Map[String, _], Set)
    • any type which has a configured custom deserializer

    Example:

    case class Person(name: String)
    JObject(JField("name", JString("joe")) :: Nil).extractOpt[Person] == Some(Person("joe"))
    

  11. def extractOrElse[A](default: ⇒ A)(implicit formats: Formats, mf: Manifest[A]): A

    Extract a value from a JSON using a default value.

    Extract a value from a JSON using a default value.

    Value can be:

    • case class
    • primitive (String, Boolean, Date, etc.)
    • supported collection type (List, Seq, Map[String, _], Set)
    • any type which has a configured custom deserializer

    Example:

    case class Person(name: String)
    JNothing.extractOrElse(Person("joe")) == Person("joe")
    

  12. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  13. def getAs[A](implicit reader: Reader[A]): Option[A]

    Given that an implicit reader of type A is in scope It will deserialize the org.json4s.JsonAST.JValue to an object of type Option[A]

    Given that an implicit reader of type A is in scope It will deserialize the org.json4s.JsonAST.JValue to an object of type Option[A]

    Example:

    case class Person(name: String)
    implicit object PersonReader extends Reader[Person] {
      def read(json: JValue): Person = Person((json \ "name").extract[String])
    }
    JObject(JField("name", JString("Joe")) :: Nil).getAs[Person]
  14. def getAsOrElse[A](default: ⇒ A)(implicit reader: Reader[A]): A

    Given that an implicit reader of type A is in scope It will deserialize the org.json4s.JsonAST.JValue to an object of type A if an error occurs it will return the default value.

    Given that an implicit reader of type A is in scope It will deserialize the org.json4s.JsonAST.JValue to an object of type A if an error occurs it will return the default value.

    Example:

    case class Person(name: String)
    implicit object PersonReader extends Reader[Person] {
      def read(json: JValue): Person = Person((json \ "name").extract[String])
    }
    JObject(JField("name", JString("Joe")) :: Nil).getAsOrElse(Person("Tom"))
  15. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  22. def toString(): String
    Definition Classes
    AnyRef → Any
  23. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  24. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )

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