object CometJacksonModule extends Module with CometJacksonModule
- Alphabetic
- By Inheritance
- CometJacksonModule
- CometJacksonModule
- JacksonModule
- Module
- Versioned
- AnyRef
- Any
- Hide All
- Show All
- Public
- All
Type Members
-
trait
JacksonProtectedSingleton extends AnyRef
A trait to identify case objects are requiring special protection from Jackson's deserializer
A trait to identify case objects are requiring special protection from Jackson's deserializer
Jackson doesn't know a class is actually an object type, and will happily make new instances of things supposed to be objects (singletons). These 'clone' instances are toxic as they will **not** patmat correctly, as Scala simply compares identityHashcodes in patterns involving a case object.
To avoid this, we define this trait, which registers the canonical instance within a special table, and provide a helpful exception
One should also define a Builder inheriting from com.ebiznext.comet.utils.CometJacksonModule.ProtectedSingletonBuilder, and decorate the case object with @JsonDeserialize(builder = classOf[MyObjectBuilder]).
The goal of that builder is to "lie" to Jackson by 'building' an instance, which is actually *the* instance
- See also
https://github.com/FasterXML/jackson-module-scala/issues/211
-
abstract
class
ProtectedSingletonBuilder[T <: JacksonProtectedSingleton] extends Serializable
a base class for fake 'builders' whose purpose is to drive Jackson off attempting to build new instances of case objects upon deserialization.
a base class for fake 'builders' whose purpose is to drive Jackson off attempting to build new instances of case objects upon deserialization.
This class will work to recover *the* canonical instance of the
Tclass, and return that whenever Jackson requests a 'new' instance- Annotations
- @JsonPOJOBuilder()
- See also
https://github.com/FasterXML/jackson-module-scala/issues/211
Value Members
-
final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
-
def
+=(beanSerMod: BeanSerializerModifier): CometJacksonModule.this.type
- Attributes
- protected
- Definition Classes
- JacksonModule
-
def
+=(typeMod: TypeModifier): CometJacksonModule.this.type
- Attributes
- protected
- Definition Classes
- JacksonModule
-
def
+=(deser: Deserializers): CometJacksonModule.this.type
- Attributes
- protected
- Definition Classes
- JacksonModule
-
def
+=(ser: Serializers): CometJacksonModule.this.type
- Attributes
- protected
- Definition Classes
- JacksonModule
-
def
+=(init: (SetupContext) ⇒ Unit): CometJacksonModule.this.type
- Attributes
- protected
- Definition Classes
- JacksonModule
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
def
clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( ... ) @native()
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
getDependencies(): Iterable[_ <: Module]
- Definition Classes
- Module
-
def
getModuleName(): String
- Definition Classes
- CometJacksonModule → JacksonModule → Module
-
def
getTypeId(): AnyRef
- Definition Classes
- Module
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
final
def
notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
def
setupModule(context: SetupContext): Unit
- Definition Classes
- JacksonModule → Module
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
toString(): String
- Definition Classes
- AnyRef → Any
-
def
version(): fasterxml.jackson.core.Version
- Definition Classes
- JacksonModule → Module → Versioned
-
final
def
wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... ) @native()