Module tools.jackson.databind
Package tools.jackson.databind.introspect

Class JacksonAnnotationIntrospector

java.lang.Object
tools.jackson.databind.AnnotationIntrospector
tools.jackson.databind.introspect.JacksonAnnotationIntrospector
All Implemented Interfaces:
Serializable, Versioned
public class JacksonAnnotationIntrospector extends AnnotationIntrospector implements Serializable
AnnotationIntrospector implementation that handles standard Jackson annotations.
See Also:

  • Field Details

    • _annotationsInside

      protected transient LookupCache<String,Boolean> _annotationsInside
      Since introspection of annotation types is a performance issue in some use cases (rare, but do exist), let's try a simple cache to reduce need for actual meta-annotation introspection.

      Non-final only because it needs to be re-created after deserialization.

    • _cfgConstructorPropertiesImpliesCreator

      protected boolean _cfgConstructorPropertiesImpliesCreator
      See setConstructorPropertiesImpliesCreator(boolean) for explanation.

      Defaults to true.

  • Constructor Details

    • JacksonAnnotationIntrospector

      public JacksonAnnotationIntrospector()

  • Method Details

    • version

      public Version version()
      Specified by:
      version in interface Versioned
      Specified by:
      version in class AnnotationIntrospector

    • readResolve

      protected Object readResolve()

    • setConstructorPropertiesImpliesCreator

      public JacksonAnnotationIntrospector setConstructorPropertiesImpliesCreator(boolean b)
      Method for changing behavior of ConstructorProperties: if set to `true`, existence DOES indicate that the given constructor should be considered a creator; `false` that it should NOT be considered a creator without explicit use of JsonCreator annotation.

      Default setting is `true`

    • isAnnotationBundle

      public boolean isAnnotationBundle(Annotation ann)
      Annotations with meta-annotation JacksonAnnotationsInside are considered bundles.
      Overrides:
      isAnnotationBundle in class AnnotationIntrospector
      Parameters:
      ann - Annotated entity to introspect
      Returns:
      True if given annotation is considered an annotation bundle; false if not

    • findEnumValues

      public String[] findEnumValues(MapperConfig<?> config, AnnotatedClass annotatedClass, Enum<?>[] enumValues, String[] names)
      Description copied from class: AnnotationIntrospector
      Finds the explicitly defined names, if any, of the given set of Enum values. The method overwrites entries in the incoming names array with the explicit names found, if any, leaving other entries unmodified.
      Overrides:
      findEnumValues in class AnnotationIntrospector
      Parameters:
      config - the mapper configuration to use
      annotatedClass - the annotated class for which to find the explicit names
      enumValues - the set of Enum values to find the explicit names for
      names - the matching declared names of enumeration values (with indexes matching enumValues entries); modified as necessary
      Returns:
      an array of names to use (usually names passed as argument)

    • findEnumAliases

      public void findEnumAliases(MapperConfig<?> config, AnnotatedClass annotatedClass, Enum<?>[] enumValues, String[][] aliasList)
      Description copied from class: AnnotationIntrospector
      Method that is called to check if there are alternative names (aliases) that can be accepted for entries in addition to primary names that were introspected earlier, related to AnnotationIntrospector.findEnumValues(tools.jackson.databind.cfg.MapperConfig<?>, tools.jackson.databind.introspect.AnnotatedClass, java.lang.Enum<?>[], java.lang.String[]). These aliases should be returned in String[][] aliases passed in as argument. The aliases.length is expected to match the number of Enum values.
      Overrides:
      findEnumAliases in class AnnotationIntrospector
      Parameters:
      config - The configuration of the mapper
      annotatedClass - The annotated class of the enumeration type
      enumValues - The values of the enumeration
      aliasList - (in/out) Pre-allocated array where aliases found, if any, may be added (in indexes matching those of enumValues)

    • findDefaultEnumValue

      public Enum<?> findDefaultEnumValue(MapperConfig<?> config, AnnotatedClass annotatedClass, Enum<?>[] enumValues)
      Finds the Enum value that should be considered the default value, if possible.

      This implementation relies on JsonEnumDefaultValue annotation to determine the default value if present.

      Overrides:
      findDefaultEnumValue in class AnnotationIntrospector
      Parameters:
      annotatedClass - The Enum class to scan for the default value annotation.
      enumValues - The Enum values of the Enum class.
      Returns:
      null if none found or it's not possible to determine one.

    • findRootName

      public PropertyName findRootName(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for locating name used as "root name" (for use by some serializers when outputting root-level object -- mostly for XML compatibility purposes) for given class, if one is defined. Returns null if no declaration found; can return explicit empty String, which is usually ignored as well as null.
      Overrides:
      findRootName in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ac - Annotated class to introspect

    • isIgnorableType

      public Boolean isIgnorableType(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for checking whether properties that have specified type (class, not generics aware) should be completely ignored for serialization and deserialization purposes.
      Overrides:
      isIgnorableType in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ac - Annotated class to introspect
      Returns:
      Boolean.TRUE if properties of type should be ignored; Boolean.FALSE if they are not to be ignored, null for default handling (which is 'do not ignore')

    • findPropertyIgnoralByName

      public JsonIgnoreProperties.Value findPropertyIgnoralByName(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding information about properties to ignore either by name, or by more general specification ("ignore all unknown"). This method combines multiple aspects of name-based (as opposed to value-based) ignorals.
      Overrides:
      findPropertyIgnoralByName in class AnnotationIntrospector
      Parameters:
      config - Configuration settings in effect (for serialization or deserialization)
      a - Annotated entity (Class, Accessor) to introspect

    • findPropertyInclusionByName

      public JsonIncludeProperties.Value findPropertyInclusionByName(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding information about names of properties to included. This is typically used to strictly limit properties to include based on fully defined set of names ("allow-listing"), as opposed to excluding potential properties by exclusion ("deny-listing").
      Overrides:
      findPropertyInclusionByName in class AnnotationIntrospector
      Parameters:
      config - Configuration settings in effect (for serialization or deserialization)
      a - Annotated entity (Class, Accessor) to introspect

    • findFilterId

      public Object findFilterId(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding if annotated class has associated filter; and if so, to return id that is used to locate filter.
      Overrides:
      findFilterId in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      a - Annotated entity to introspect
      Returns:
      Id of the filter to use for filtering properties of annotated class, if any; or null if none found.

    • findNamingStrategy

      public Object findNamingStrategy(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for finding PropertyNamingStrategy for given class, if any specified by annotations; and if so, either return a PropertyNamingStrategy instance, or Class to use for creating instance
      Overrides:
      findNamingStrategy in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ac - Annotated class to introspect
      Returns:
      Sub-class or instance of PropertyNamingStrategy, if one is specified for given class; null if not.

    • findEnumNamingStrategy

      public Object findEnumNamingStrategy(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for finding EnumNamingStrategy for given class, if any specified by annotations; and if so, either return a EnumNamingStrategy instance, or Class to use for creating instance
      Overrides:
      findEnumNamingStrategy in class AnnotationIntrospector
      ac - Annotated class to introspect
      Returns:
      Subclass or instance of EnumNamingStrategy, if one is specified for given class; null if not.

    • findClassDescription

      public String findClassDescription(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method used to check whether specified class defines a human-readable description to use for documentation. There are no further definitions for contents; for example, whether these may be marked up using HTML (or something like wiki format like Markup) is not defined.
      Overrides:
      findClassDescription in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ac - Annotated class to introspect
      Returns:
      Human-readable description, if any.

    • findAutoDetectVisibility

      public VisibilityChecker findAutoDetectVisibility(MapperConfig<?> config, AnnotatedClass ac, VisibilityChecker checker)
      Description copied from class: AnnotationIntrospector
      Method for checking if annotations indicate changes to minimum visibility levels needed for auto-detecting property elements (fields, methods, constructors). A baseline checker is given, and introspector is to either return it as is (if no annotations are found), or build and return a derived instance (using checker's build methods).
      Overrides:
      findAutoDetectVisibility in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ac - Annotated class to introspect

    • findImplicitPropertyName

      public String findImplicitPropertyName(MapperConfig<?> config, AnnotatedMember m)
      Description copied from class: AnnotationIntrospector
      Method for finding implicit name for a property that given annotated member (field, method, creator parameter) may represent. This is different from explicit, annotation-based property name, in that it is "weak" and does not either prove that a property exists (for example, if visibility is not high enough), or override explicit names. In practice this method is used to introspect optional names for creator parameters (which may or may not be available and cannot be detected by standard databind); or to provide alternate name mangling for fields, getters and/or setters.
      Overrides:
      findImplicitPropertyName in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use

    • _findImplicitName

      protected String _findImplicitName(AnnotatedWithParams m, int index)

    • findPropertyAliases

      public List<PropertyName> findPropertyAliases(MapperConfig<?> config, Annotated m)
      Description copied from class: AnnotationIntrospector
      Method called to find if given property has alias(es) defined.
      Overrides:
      findPropertyAliases in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      Returns:
      `null` if member has no information; otherwise a `List` (possibly empty) of aliases to use.

    • hasIgnoreMarker

      public boolean hasIgnoreMarker(MapperConfig<?> config, AnnotatedMember m)
      Description copied from class: AnnotationIntrospector
      Method called to check whether given property is marked to be ignored. This is used to determine whether to ignore properties, on per-property basis, usually combining annotations from multiple accessors (getters, setters, fields, constructor parameters).
      Overrides:
      hasIgnoreMarker in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      m - Member to check for information

    • hasRequiredMarker

      public Boolean hasRequiredMarker(MapperConfig<?> config, AnnotatedMember m)
      Description copied from class: AnnotationIntrospector
      Method that can be called to check whether this member has an annotation that suggests whether value for matching property is required or not.
      Overrides:
      hasRequiredMarker in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      m - Member to check for information

    • findPropertyAccess

      public JsonProperty.Access findPropertyAccess(MapperConfig<?> config, Annotated m)
      Description copied from class: AnnotationIntrospector
      Method for finding optional access definition for a property, annotated on one of its accessors. If a definition for read-only, write-only or read-write cases, visibility rules may be modified. Note, however, that even more specific annotations (like one for ignoring specific accessor) may further override behavior of the access definition.
      Overrides:
      findPropertyAccess in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use

    • findPropertyDescription

      public String findPropertyDescription(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method used to check whether specified property member (accessor or mutator) defines human-readable description to use for documentation. There are no further definitions for contents; for example, whether these may be marked up using HTML is not defined.
      Overrides:
      findPropertyDescription in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      Returns:
      Human-readable description, if any.

    • findPropertyIndex

      public Integer findPropertyIndex(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method used to check whether specified property member (accessor or mutator) defines numeric index, and if so, what is the index value. Possible use cases for index values included use by underlying data format (some binary formats mandate use of index instead of name) and ordering of properties (for documentation, or during serialization).
      Overrides:
      findPropertyIndex in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      Returns:
      Explicitly specified index for the property, if any

    • findPropertyDefaultValue

      public String findPropertyDefaultValue(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method for finding suggested default value (as simple textual serialization) for the property. While core databind does not make any use of it, it is exposed for extension modules to use: an expected use is generation of schema representations and documentation.
      Overrides:
      findPropertyDefaultValue in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use

    • findFormat

      public JsonFormat.Value findFormat(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method for finding format annotations for property or class. Return value is typically used by serializers and/or deserializers to customize presentation aspects of the serialized value.
      Overrides:
      findFormat in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use

    • findReferenceType

      public AnnotationIntrospector.ReferenceProperty findReferenceType(MapperConfig<?> config, AnnotatedMember member)
      Description copied from class: AnnotationIntrospector
      Method for checking if given member indicates that it is part of a reference (parent/child).
      Overrides:
      findReferenceType in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      member - Member to check for information

    • findUnwrappingNameTransformer

      public NameTransformer findUnwrappingNameTransformer(MapperConfig<?> config, AnnotatedMember member)
      Description copied from class: AnnotationIntrospector
      Method called to check whether given property is marked to be "unwrapped" when being serialized (and appropriately handled in reverse direction, i.e. expect unwrapped representation during deserialization). Return value is the name transformation to use, if wrapping/unwrapping should be done, or null if not -- note that transformation may simply be identity transformation (no changes).
      Overrides:
      findUnwrappingNameTransformer in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      member - Member to check for information

    • findInjectableValue

      public JacksonInject.Value findInjectableValue(MapperConfig<?> config, AnnotatedMember m)
      Description copied from class: AnnotationIntrospector
      Method called to find out whether given member expectes a value to be injected, and if so, what is the identifier of the value to use during injection. Type if identifier needs to be compatible with provider of values (of type InjectableValues); often a simple String id is used.
      Overrides:
      findInjectableValue in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      m - Member to check for information
      Returns:
      Identifier of value to inject, if any; null if no injection indicator is found

    • findViews

      public Class<?>[] findViews(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking if annotated property (represented by a field or getter/setter method) has definitions for views it is to be included in. If null is returned, no view definitions exist and property is always included (or always excluded as per default view inclusion configuration); otherwise it will only be included for views included in returned array. View matches are checked using class inheritance rules (sub-classes inherit inclusions of super-classes)

      Since 2.9 this method may also be called to find "default view(s)" for AnnotatedClass

      Overrides:
      findViews in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      a - Annotated property (represented by a method, field or ctor parameter)
      Returns:
      Array of views (represented by classes) that the property is included in; if null, always included (same as returning array containing Object.class)

    • resolveSetterConflict

      public AnnotatedMethod resolveSetterConflict(MapperConfig<?> config, AnnotatedMethod setter1, AnnotatedMethod setter2)
      Description copied from class: AnnotationIntrospector
      Method called in cases where a class has two methods eligible to be used for the same logical property, and default logic is not enough to figure out clear precedence. Introspector may try to choose one to use; or, if unable, return `null` to indicate it cannot resolve the problem.
      Overrides:
      resolveSetterConflict in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use

    • findRenameByField

      public PropertyName findRenameByField(MapperConfig<?> config, AnnotatedField f, PropertyName implName)
      Description copied from class: AnnotationIntrospector
      Method called on fields that are eligible candidates for properties (that is, non-static member fields), but not necessarily selected (may or may not be visible), to let fields affect name linking. Call will be made after finding implicit name (which by default is just name of the field, but may be overridden by introspector), but before discovering other accessors. If non-null name returned, it is to be used to find other accessors (getters, setters, creator parameters) and replace their implicit names with that of field's implicit name (assuming they differ).

      Specific example (and initial use case is for support Kotlin's "is getter" matching (see Kotling Interop for details), in which field like 'isOpen' would have implicit name of "isOpen", match getter getOpen() and setter setOpen(boolean), but use logical external name of "isOpen" (and not implicit name of getter/setter, "open"!). To achieve this, field implicit name needs to remain "isOpen" but this method needs to return name PropertyName.construct("open"): doing so will "pull in" getter and/or setter, and rename them as "isOpen".

      Overrides:
      findRenameByField in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      f - Field to check
      implName - Implicit name of the field; usually name of field itself but not always, used as the target name for accessors to rename.
      Returns:
      Name used to find other accessors to rename, if any; null to indicate no renaming

    • findPolymorphicTypeInfo

      public JsonTypeInfo.Value findPolymorphicTypeInfo(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given Class or Property Accessor specifies polymorphic type-handling information, to indicate need for polymorphic handling.
      Overrides:
      findPolymorphicTypeInfo in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ann - Annotated entity to introspect

    • findTypeResolverBuilder

      public Object findTypeResolverBuilder(MapperConfig<?> config, Annotated ann)
      Overrides:
      findTypeResolverBuilder in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ann - Annotated entity to introspect

    • findTypeIdResolver

      public Object findTypeIdResolver(MapperConfig<?> config, Annotated ann)
      Overrides:
      findTypeIdResolver in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ann - Annotated entity to introspect

    • findSubtypes

      public List<NamedType> findSubtypes(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for locating annotation-specified subtypes related to annotated entity (class, method, field). Note that this is only guaranteed to be a list of directly declared subtypes, no recursive processing is guarantees (i.e. caller has to do it if/as necessary)
      Overrides:
      findSubtypes in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      a - Annotated entity (class, field/method) to check for annotations

    • findTypeName

      public String findTypeName(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for checking if specified type has explicit name.
      Overrides:
      findTypeName in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ac - Class to check for type name annotations

    • isTypeId

      public Boolean isTypeId(MapperConfig<?> config, AnnotatedMember member)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given accessor claims to represent type id: if so, its value may be used as an override, instead of generated type id.
      Overrides:
      isTypeId in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      member - Member to check for type id information

    • findObjectIdInfo

      public ObjectIdInfo findObjectIdInfo(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given annotated thing (type, or accessor) indicates that values referenced (values of type of annotated class, or values referenced by annotated property; latter having precedence) should include Object Identifier, and if so, specify details of Object Identity used.
      Overrides:
      findObjectIdInfo in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ann - Annotated entity to introspect
      Returns:
      Details of Object Id as explained above, if Object Id handling to be applied; null otherwise.

    • findObjectReferenceInfo

      public ObjectIdInfo findObjectReferenceInfo(MapperConfig<?> config, Annotated ann, ObjectIdInfo objectIdInfo)
      Description copied from class: AnnotationIntrospector
      Method for figuring out additional properties of an Object Identity reference
      Overrides:
      findObjectReferenceInfo in class AnnotationIntrospector
      Parameters:
      config - Effective mapper configuration in use
      ann - Annotated entity to introspect
      objectIdInfo - (optional) Base Object Id information, if any; null if none
      Returns:
      ObjectIdInfo augmented with possible additional information

    • findSerializer

      public Object findSerializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a serializer definition on specified method or field. Type of definition is either instance (of type ValueSerializer) or Class (of Class<ValueSerializer> implementation subtype); if value of different type is returned, a runtime exception may be thrown by caller.
      Overrides:
      findSerializer in class AnnotationIntrospector

    • findKeySerializer

      public Object findKeySerializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a serializer definition for keys of associated java.util.Map property. Type of definition is either instance (of type ValueSerializer) or Class (of type Class<ValueSerializer>); if value of different type is returned, a runtime exception may be thrown by caller.
      Overrides:
      findKeySerializer in class AnnotationIntrospector

    • findContentSerializer

      public Object findContentSerializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a serializer definition for content (values) of associated Collection, array or Map property. Type of definition is either instance (of type ValueSerializer) or Class (of type Class<ValueSerializer>); if value of different type is returned, a runtime exception may be thrown by caller.
      Overrides:
      findContentSerializer in class AnnotationIntrospector

    • findNullSerializer

      public Object findNullSerializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a serializer definition for serializer to use for nulls (null values) of associated property or type.
      Overrides:
      findNullSerializer in class AnnotationIntrospector

    • findPropertyInclusion

      public JsonInclude.Value findPropertyInclusion(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking inclusion criteria for a type (Class) or property (yes, method name is bit unfortunate -- not just for properties!). In case of class, acts as the default for properties POJO contains; for properties acts as override for class defaults and possible global defaults.
      Overrides:
      findPropertyInclusion in class AnnotationIntrospector

    • findSerializationTyping

      public JsonSerialize.Typing findSerializationTyping(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for accessing declared typing mode annotated (if any). This is used for type detection, unless more granular settings (such as actual exact type; or serializer to use which means no type information is needed) take precedence.
      Overrides:
      findSerializationTyping in class AnnotationIntrospector
      Returns:
      Typing mode to use, if annotation is found; null otherwise

    • findSerializationConverter

      public Object findSerializationConverter(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding Converter that annotated entity (property or class) has indicated to be used as part of serialization. If not null, either has to be actual Converter instance, or class for such converter; and resulting converter will be used first to convert property value to converter target type, and then serializer for that type is used for actual serialization.

      This feature is typically used to convert internal values into types that Jackson can convert.

      Note also that this feature does not necessarily work well with polymorphic type handling, or object identity handling; if such features are needed an explicit serializer is usually better way to handle serialization.

      Overrides:
      findSerializationConverter in class AnnotationIntrospector
      a - Annotated property (field, method) or class to check for annotations

    • findSerializationContentConverter

      public Object findSerializationContentConverter(MapperConfig<?> config, AnnotatedMember a)
      Description copied from class: AnnotationIntrospector
      Method for finding Converter that annotated property has indicated needs to be used for values of container type (this also means that method should only be called for properties of container types, List/Map/array properties).

      If not null, either has to be actual Converter instance, or class for such converter; and resulting converter will be used first to convert property value to converter target type, and then serializer for that type is used for actual serialization.

      Other notes are same as those for AnnotationIntrospector.findSerializationConverter(tools.jackson.databind.cfg.MapperConfig<?>, tools.jackson.databind.introspect.Annotated)

      Overrides:
      findSerializationContentConverter in class AnnotationIntrospector
      a - Annotated property (field, method) to check.

    • refineSerializationType

      public JavaType refineSerializationType(MapperConfig<?> config, Annotated a, JavaType baseType)
      Description copied from class: AnnotationIntrospector
      Method called to find out possible type refinements to use for deserialization, including not just value itself but key and/or content type, if type has those.
      Overrides:
      refineSerializationType in class AnnotationIntrospector

    • findSerializationPropertyOrder

      public String[] findSerializationPropertyOrder(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for accessing defined property serialization order (which may be partial). May return null if no ordering is defined.
      Overrides:
      findSerializationPropertyOrder in class AnnotationIntrospector

    • findSerializationSortAlphabetically

      public Boolean findSerializationSortAlphabetically(MapperConfig<?> config, Annotated ann)
      Description copied from class: AnnotationIntrospector
      Method for checking whether an annotation indicates that serialized properties for which no explicit is defined should be alphabetically (lexicograpically) ordered
      Overrides:
      findSerializationSortAlphabetically in class AnnotationIntrospector

    • findAndAddVirtualProperties

      public void findAndAddVirtualProperties(MapperConfig<?> config, AnnotatedClass ac, List<BeanPropertyWriter> properties)
      Description copied from class: AnnotationIntrospector
      Method for adding possible virtual properties to be serialized along with regular properties.
      Overrides:
      findAndAddVirtualProperties in class AnnotationIntrospector

    • _constructVirtualProperty

      protected BeanPropertyWriter _constructVirtualProperty(JsonAppend.Attr attr, MapperConfig<?> config, AnnotatedClass ac, JavaType type)

    • _constructVirtualProperty

      protected BeanPropertyWriter _constructVirtualProperty(JsonAppend.Prop prop, MapperConfig<?> config, AnnotatedClass ac)

    • findNameForSerialization

      public PropertyName findNameForSerialization(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given property accessors (method, field) has an annotation that suggests property name to use for serialization. Should return null if no annotation is found; otherwise a non-null name (possibly PropertyName.USE_DEFAULT, which means "use default heuristics").
      Overrides:
      findNameForSerialization in class AnnotationIntrospector
      a - Property accessor to check
      Returns:
      Name to use if found; null if not.

    • hasAsKey

      public Boolean hasAsKey(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given method has an annotation that suggests the return value of annotated field or method should be used as "the key" of the object instance; usually serialized as a primitive value such as String or number.
      Overrides:
      hasAsKey in class AnnotationIntrospector
      Returns:
      Boolean.TRUE if such annotation is found and is not disabled; Boolean.FALSE if disabled annotation (block) is found (to indicate accessor is definitely NOT to be used "as value"); or `null` if no information found.

    • hasAsValue

      public Boolean hasAsValue(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given method has an annotation that suggests that the return value of annotated method should be used as "the value" of the object instance; usually serialized as a primitive value such as String or number.
      Overrides:
      hasAsValue in class AnnotationIntrospector
      Returns:
      Boolean.TRUE if such annotation is found and is not disabled; Boolean.FALSE if disabled annotation (block) is found (to indicate accessor is definitely NOT to be used "as value"); or `null` if no information found.

    • hasAnyGetter

      public Boolean hasAnyGetter(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given method has an annotation that suggests that the method is to serve as "any setter"; method to be used for accessing set of miscellaneous "extra" properties, often bound with matching "any setter" method.
      Overrides:
      hasAnyGetter in class AnnotationIntrospector
      a - Annotated entity to check
      Returns:
      True if such annotation is found (and is not disabled), false otherwise

    • findDeserializer

      public Object findDeserializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a deserializer definition on specified method or field. Type of definition is either instance (of type ValueDeserializer) or Class (of type Class&<ValueDeserializer>); type is returned, a runtime exception may be thrown by caller.
      Overrides:
      findDeserializer in class AnnotationIntrospector

    • findKeyDeserializer

      public Object findKeyDeserializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a deserializer definition for keys of associated Map property. Type of definition is either instance (of type ValueDeserializer) or Class (of type Class<ValueDeserializer>); if value of different type is returned, a runtime exception may be thrown by caller.
      Overrides:
      findKeyDeserializer in class AnnotationIntrospector

    • findContentDeserializer

      public Object findContentDeserializer(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for getting a deserializer definition for content (values) of associated Collection, array or Map property. Type of definition is either instance (of type ValueDeserializer) or Class (of type Class<ValueDeserializer>); if value of different type is returned, a runtime exception may be thrown by caller.
      Overrides:
      findContentDeserializer in class AnnotationIntrospector

    • findDeserializationConverter

      public Object findDeserializationConverter(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding Converter that annotated entity (property or class) has indicated to be used as part of deserialization. If not null, either has to be actual Converter instance, or class for such converter; and resulting converter will be used after Jackson has deserializer data into intermediate type (Converter input type), and Converter needs to convert this into its target type to be set as property value.

      This feature is typically used to convert intermediate Jackson types (that default deserializers can produce) into custom type instances.

      Note also that this feature does not necessarily work well with polymorphic type handling, or object identity handling; if such features are needed an explicit deserializer is usually better way to handle deserialization.

      Overrides:
      findDeserializationConverter in class AnnotationIntrospector
      a - Annotated property (field, method) or class to check for annotations

    • findDeserializationContentConverter

      public Object findDeserializationContentConverter(MapperConfig<?> config, AnnotatedMember a)
      Description copied from class: AnnotationIntrospector
      Method for finding Converter that annotated property has indicated needs to be used for values of container type (this also means that method should only be called for properties of container types, List/Map/array properties).

      If not null, either has to be actual Converter instance, or class for such converter; and resulting converter will be used after Jackson has deserializer data into intermediate type (Converter input type), and Converter needs to convert this into its target type to be set as property value.

      Other notes are same as those for AnnotationIntrospector.findDeserializationConverter(tools.jackson.databind.cfg.MapperConfig<?>, tools.jackson.databind.introspect.Annotated)

      Overrides:
      findDeserializationContentConverter in class AnnotationIntrospector
      a - Annotated property (field, method) to check.

    • refineDeserializationType

      public JavaType refineDeserializationType(MapperConfig<?> config, Annotated a, JavaType baseType)
      Description copied from class: AnnotationIntrospector
      Method called to find out possible type refinements to use for deserialization.
      Overrides:
      refineDeserializationType in class AnnotationIntrospector

    • findValueInstantiator

      public Object findValueInstantiator(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method getting ValueInstantiator to use for given type (class): return value can either be an instance of instantiator, or class of instantiator to create.
      Overrides:
      findValueInstantiator in class AnnotationIntrospector
      ac - Annotated class to introspect

    • findPOJOBuilder

      public Class<?> findPOJOBuilder(MapperConfig<?> config, AnnotatedClass ac)
      Description copied from class: AnnotationIntrospector
      Method for finding Builder object to use for constructing value instance and binding data (sort of combining value instantiators that can construct, and deserializers that can bind data).

      Note that unlike accessors for some helper Objects, this method does not allow returning instances: the reason is that builders have state, and a separate instance needs to be created for each deserialization call.

      Overrides:
      findPOJOBuilder in class AnnotationIntrospector
      ac - Annotated class to introspect

    • findPOJOBuilderConfig

      public JsonPOJOBuilder.Value findPOJOBuilderConfig(MapperConfig<?> config, AnnotatedClass ac)
      Overrides:
      findPOJOBuilderConfig in class AnnotationIntrospector
      ac - Annotated class to introspect

    • findNameForDeserialization

      public PropertyName findNameForDeserialization(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given property accessors (method, field) has an annotation that suggests property name to use for deserialization (reading JSON into POJOs). Should return null if no annotation is found; otherwise a non-null name (possibly PropertyName.USE_DEFAULT, which means "use default heuristics").
      Overrides:
      findNameForDeserialization in class AnnotationIntrospector
      a - Annotated entity to check
      Returns:
      Name to use if found; null if not.

    • hasAnySetter

      public Boolean hasAnySetter(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for checking whether given method has an annotation that suggests that the method is to serve as "any setter"; method to be used for setting values of any properties for which no dedicated setter method is found.
      Overrides:
      hasAnySetter in class AnnotationIntrospector
      a - Annotated entity to check
      Returns:
      True if such annotation is found (and is not disabled), false otherwise

    • findSetterInfo

      public JsonSetter.Value findSetterInfo(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding possible settings for property, given annotations on an accessor.
      Overrides:
      findSetterInfo in class AnnotationIntrospector

    • findMergeInfo

      public Boolean findMergeInfo(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method for finding merge settings for property, if any.
      Overrides:
      findMergeInfo in class AnnotationIntrospector

    • findCreatorAnnotation

      public JsonCreator.Mode findCreatorAnnotation(MapperConfig<?> config, Annotated a)
      Description copied from class: AnnotationIntrospector
      Method called to check whether potential Creator (constructor or static factory method) has explicit annotation to indicate it as actual Creator; and if so, which JsonCreator.Mode to use.

      NOTE: caller needs to consider possibility of both `null` (no annotation found) and JsonCreator.Mode.DISABLED (annotation found, but disabled); latter is necessary as marker in case multiple introspectors are chained, as well as possibly as when using mix-in annotations.

      Overrides:
      findCreatorAnnotation in class AnnotationIntrospector
      Parameters:
      config - Configuration settings in effect (for serialization or deserialization)
      a - Annotated accessor (usually constructor or static method) to check

    • _isIgnorable

      protected boolean _isIgnorable(Annotated a)

    • _classIfExplicit

      protected Class<?> _classIfExplicit(Class<?> cls)

    • _classIfExplicit

      protected Class<?> _classIfExplicit(Class<?> cls, Class<?> implicit)

    • _propertyName

      protected PropertyName _propertyName(String localName, String namespace)