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net.liftweb.json

TypeHints

trait TypeHints extends AnyRef

Type hints can be used to alter the default conversion rules when converting Scala instances into JSON and vice versa. Type hints must be used when converting class which is not supported by default (for instance when class is not a case class).

Example: 

class DateTime(val time: Long)

val hints = new ShortTypeHints(classOf[DateTime] :: Nil) {
  override def serialize: PartialFunction[Any, JObject] = {
    case t: DateTime => JObject(JField("t", JInt(t.time)) :: Nil)
  }

  override def deserialize: PartialFunction[(String, JObject), Any] = {
    case ("DateTime", JObject(JField("t", JInt(t)) :: Nil)) => new DateTime(t.longValue)
  }
}
implicit val formats = DefaultFormats.withHints(hints)

Linear Supertypes
AnyRef, Any
Known Subclasses
FullTypeHints, NoTypeHints, ShortTypeHints
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Inherited
  1. TypeHints
  2. AnyRef
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Visibility
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Abstract Value Members

  1. abstract def classFor(hint: String): Option[Class[_]]

    Return type for given hint.

  2. abstract def hintFor(clazz: Class[_]): String

    Return hint for given type.

  3. abstract val hints: List[Class[_]]

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(hints: TypeHints): TypeHints

    Adds the specified type hints to this type hints.

  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  7. def components: List[TypeHints]
  8. def containsHint_?(clazz: Class[_]): Boolean
  9. def deserialize: PartialFunction[(String, JObject), Any]
  10. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  11. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  12. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  13. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  14. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. final def notify(): Unit
    Definition Classes
    AnyRef
  18. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  19. def serialize: PartialFunction[Any, JObject]
  20. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  21. def toString(): String
    Definition Classes
    AnyRef → Any
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  23. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  24. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from AnyRef

Inherited from Any

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