com.fasterxml.jackson.core.type

## Class ResolvedType

- java.lang.Object
- - com.fasterxml.jackson.core.type.ResolvedType

-     public abstract class ResolvedType
      extends Object

  Type abstraction that represents Java type that has been resolved (i.e. has all generic information, if any, resolved to concrete types). Note that this is an intermediate type, and all concrete instances MUST be of type `JavaType` from "databind" bundle -- this abstraction is only needed so that types can be passed through `JsonParser.readValueAs(java.lang.Class<T>)` methods.
  Since:
    2.0

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ResolvedType()`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `abstract ResolvedType` | `containedType(int index)` Method for accessing definitions of contained ("child") types.
    `abstract int` | `containedTypeCount()` Method for checking how many contained types this type has.
    `abstract String` | `containedTypeName(int index)` Method for accessing name of type variable in indicated position.
    `abstract ResolvedType` | `getContentType()` Method for accessing content type of this type, if type has such a thing: simple types do not, structured types do (like arrays, Collections and Maps)
    `abstract ResolvedType` | `getKeyType()` Method for accessing key type for this type, assuming type has such a concept (only Map types do)
    `Class<?>` | `getParameterSource()` Deprecated. Since 2.7: does not have meaning as parameters depend on type resolved.
    `abstract Class<?>` | `getRawClass()` Accessor for type-erased `Class` of resolved type.
    `abstract ResolvedType` | `getReferencedType()` Method for accessing type of value that instances of this type references, if any.
    `abstract boolean` | `hasGenericTypes()` Method that can be used to find out if the type directly declares generic parameters (for its direct super-class and/or super-interfaces).
    `abstract boolean` | `hasRawClass(Class<?> clz)`
    `abstract boolean` | `isAbstract()`
    `abstract boolean` | `isArrayType()`
    `abstract boolean` | `isCollectionLikeType()`
    `abstract boolean` | `isConcrete()`
    `abstract boolean` | `isContainerType()`
    `abstract boolean` | `isEnumType()`
    `abstract boolean` | `isFinal()`
    `abstract boolean` | `isInterface()`
    `abstract boolean` | `isMapLikeType()`
    `abstract boolean` | `isPrimitive()`
    `boolean` | `isReferenceType()` Whether this type is a referential type, meaning that values are basically pointers to "real" values (or null) and not regular values themselves.
    `abstract boolean` | `isThrowable()`
    `abstract String` | `toCanonical()` Method that can be used to serialize type into form from which it can be fully deserialized from at a later point (using `TypeFactory` from mapper package).

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ResolvedType

          public ResolvedType()

  - ### Method Detail

    - #### getRawClass

          public abstract Class<?> getRawClass()

      Accessor for type-erased `Class` of resolved type.

    - #### hasRawClass

          public abstract boolean hasRawClass(Class<?> clz)

    - #### isAbstract

          public abstract boolean isAbstract()

    - #### isConcrete

          public abstract boolean isConcrete()

    - #### isThrowable

          public abstract boolean isThrowable()

    - #### isArrayType

          public abstract boolean isArrayType()

    - #### isEnumType

          public abstract boolean isEnumType()

    - #### isInterface

          public abstract boolean isInterface()

    - #### isPrimitive

          public abstract boolean isPrimitive()

    - #### isFinal

          public abstract boolean isFinal()

    - #### isContainerType

          public abstract boolean isContainerType()

    - #### isCollectionLikeType

          public abstract boolean isCollectionLikeType()

    - #### isReferenceType

          public boolean isReferenceType()

      Whether this type is a referential type, meaning that values are basically pointers to "real" values (or null) and not regular values themselves. Typical examples include things like `AtomicReference`, and various `Optional` types (in JDK8, Guava).
      Since:
        2.6

    - #### isMapLikeType

          public abstract boolean isMapLikeType()

    - #### hasGenericTypes

          public abstract boolean hasGenericTypes()

      Method that can be used to find out if the type directly declares generic parameters (for its direct super-class and/or super-interfaces).

    - #### getParameterSource

          @Deprecated
          public Class<?> getParameterSource()

      Deprecated. Since 2.7: does not have meaning as parameters depend on type resolved.
      Accessor that can be used to find out type for which parameterization is applied: this is often NOT same as what `getRawClass()` returns, but rather one of it supertype.

      For example: for type like `HashMap`, raw type is `HashMap`; but this method would return `Map`, because relevant type parameters that are resolved (and accessible using `containedType(int)` and `getKeyType()`) are parameter for `Map` (which may or may not be same as type parameters for subtype; in case of `HashMap` they are, but for further subtypes they may be different parameters or possibly none at all).

      Since:
        2.5

    - #### getKeyType

          public abstract ResolvedType getKeyType()

      Method for accessing key type for this type, assuming type has such a concept (only Map types do)

    - #### getContentType

          public abstract ResolvedType getContentType()

      Method for accessing content type of this type, if type has such a thing: simple types do not, structured types do (like arrays, Collections and Maps)

    - #### getReferencedType

          public abstract ResolvedType getReferencedType()

      Method for accessing type of value that instances of this type references, if any.
      Returns:
        Referenced type, if any; null if not.
      Since:
        2.6

    - #### containedTypeCount

          public abstract int containedTypeCount()

      Method for checking how many contained types this type has. Contained types are usually generic types, so that generic Maps have 2 contained types.

    - #### containedType

          public abstract ResolvedType containedType(int index)

      Method for accessing definitions of contained ("child") types.
      Parameters:
        `index` - Index of contained type to return
      Returns:
        Contained type at index, or null if no such type exists (no exception thrown)

    - #### containedTypeName

          public abstract String containedTypeName(int index)

      Method for accessing name of type variable in indicated position. If no name is bound, will use placeholders (derived from 0-based index); if no type variable or argument exists with given index, null is returned.
      Parameters:
        `index` - Index of contained type to return
      Returns:
        Contained type at index, or null if no such type exists (no exception thrown)

    - #### toCanonical

          public abstract String toCanonical()

      Method that can be used to serialize type into form from which it can be fully deserialized from at a later point (using `TypeFactory` from mapper package). For simple types this is same as calling `Class.getName()`, but for structured types it may additionally contain type information about contents.

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