Trait/Object

com.fasterxml.jackson.module.scala

ClassTagExtensions

Related Docs: object ClassTagExtensions | package scala

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trait ClassTagExtensions extends AnyRef

Experimental ClassTag equivalent of ScalaObjectMapper. This does not do a good job with reference types that wrap primitives, eg Option[Int], Seq[Boolean].

This is because ClassTags only provide access to the Java class and information about the wrapped types is lost due to type erasure.

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ClassTagExtensions with ObjectMapper
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Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    @throws( ... )
  6. def convertValue[T](fromValue: Any)(implicit arg0: ClassTag[T]): T

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    Convenience method for doing two-step conversion from given value, into instance of given value type.

    Convenience method for doing two-step conversion from given value, into instance of given value type. This is functionality equivalent to first serializing given value into JSON, then binding JSON data into value of given type, but may be executed without fully serializing into JSON. Same converters (serializers, deserializers) will be used as for data binding, meaning same object mapper configuration works.

    Exceptions thrown

    IllegalArgumentException If conversion fails due to incompatible type; if so, root cause will contain underlying checked exception data binding functionality threw

  7. final def eq(arg0: AnyRef): Boolean

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. final def isInstanceOf[T0]: Boolean

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  13. final def ne(arg0: AnyRef): Boolean

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  14. final def notify(): Unit

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  15. final def notifyAll(): Unit

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  16. def readValue[T](src: Array[Byte], offset: Int, len: Int)(implicit arg0: ClassTag[T]): T

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  17. def readValue[T](src: Array[Byte])(implicit arg0: ClassTag[T]): T

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  18. def readValue[T](src: InputStream)(implicit arg0: ClassTag[T]): T

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  19. def readValue[T](src: Reader)(implicit arg0: ClassTag[T]): T

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  20. def readValue[T](content: String)(implicit arg0: ClassTag[T]): T

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  21. def readValue[T](src: URL)(implicit arg0: ClassTag[T]): T

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  22. def readValue[T](src: File)(implicit arg0: ClassTag[T]): T

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  23. def readValue[T](jp: JsonParser)(implicit arg0: ClassTag[T]): T

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    Method to deserialize JSON content into a Java type, reference to which is passed as argument.

    Method to deserialize JSON content into a Java type, reference to which is passed as argument. Type is passed using so-called "super type token" (see ) and specifically needs to be used if the root type is a parameterized (generic) container type.

  24. def readValues[T](jp: JsonParser)(implicit arg0: ClassTag[T]): MappingIterator[T]

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    Method for reading sequence of Objects from parser stream.

    Method for reading sequence of Objects from parser stream. Sequence can be either root-level "unwrapped" sequence (without surrounding JSON array), or a sequence contained in a JSON Array. In either case com.fasterxml.jackson.core.JsonParser must point to the first token of the first element, OR not point to any token (in which case it is advanced to the next token). This means, specifically, that for wrapped sequences, parser MUST NOT point to the surrounding START_ARRAY but rather to the token following it.

    Note that com.fasterxml.jackson.databind.ObjectReader has more complete set of variants.

  25. def readerFor[T](implicit arg0: ClassTag[T]): ObjectReader

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    Factory method for constructing com.fasterxml.jackson.databind.ObjectReader that will read or update instances of specified type

  26. def readerWithView[T](implicit arg0: ClassTag[T]): ObjectReader

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    Factory method for constructing com.fasterxml.jackson.databind.ObjectReader that will deserialize objects using specified JSON View (filter).

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

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  28. def toString(): String

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  29. def treeToValue[T](n: TreeNode)(implicit arg0: ClassTag[T]): T

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    Convenience conversion method that will bind data given JSON tree contains into specific value (usually bean) type.

    Convenience conversion method that will bind data given JSON tree contains into specific value (usually bean) type.

    Equivalent to:

    objectMapper.convertValue(n, valueClass);
    

  30. def updateValue[T](valueToUpdate: T, src: Array[Byte], offset: Int, len: Int)(implicit arg0: ClassTag[T]): T

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  31. def updateValue[T](valueToUpdate: T, src: Array[Byte])(implicit arg0: ClassTag[T]): T

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  32. def updateValue[T](valueToUpdate: T, src: InputStream)(implicit arg0: ClassTag[T]): T

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  33. def updateValue[T](valueToUpdate: T, src: Reader)(implicit arg0: ClassTag[T]): T

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  34. def updateValue[T](valueToUpdate: T, content: String)(implicit arg0: ClassTag[T]): T

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  35. def updateValue[T](valueToUpdate: T, src: URL)(implicit arg0: ClassTag[T]): T

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  36. def updateValue[T](valueToUpdate: T, src: File)(implicit arg0: ClassTag[T]): T

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  37. final def wait(): Unit

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

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  39. final def wait(arg0: Long): Unit

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  40. def writerFor[T](implicit arg0: ClassTag[T]): ObjectWriter

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    Factory method for constructing com.fasterxml.jackson.databind.ObjectWriter that will serialize objects using specified root type, instead of actual runtime type of value.

    Factory method for constructing com.fasterxml.jackson.databind.ObjectWriter that will serialize objects using specified root type, instead of actual runtime type of value. Type must be a super-type of runtime type.

    Main reason for using this method is performance, as writer is able to pre-fetch serializer to use before write, and if writer is used more than once this avoids addition per-value serializer lookups.

    Since

    2.5

  41. def writerWithView[T](implicit arg0: ClassTag[T]): ObjectWriter

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    Factory method for constructing com.fasterxml.jackson.databind.ObjectWriter that will serialize objects using specified JSON View (filter).

Deprecated Value Members

  1. final def addMixin[Target, MixinSource]()(implicit arg0: ClassTag[Target], arg1: ClassTag[MixinSource]): ObjectMapper

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    Method to use for adding mix-in annotations to use for augmenting specified class or interface.

    Method to use for adding mix-in annotations to use for augmenting specified class or interface. All annotations from mixinSource are taken to override annotations that target (or its supertypes) has.

    Target

    Class (or interface) whose annotations to effectively override

    MixinSource

    Class (or interface) whose annotations are to be "added" to target's annotations, overriding as necessary

    Annotations
    @deprecated
    Deprecated

    (Since version 2.12.2) this support in jackson-databind is moving to the MapperBuilder

  2. final def findMixInClassFor[T](implicit arg0: ClassTag[T]): Class[_]

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    Annotations
    @deprecated
    Deprecated

    (Since version 2.12.2) this support in jackson-databind is moving to the MapperBuilder

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