Package com.fasterxml.jackson.databind.cfg

Class MapperConfig<T extends MapperConfig<T>>

  • All Implemented Interfaces:
    ClassIntrospector.MixInResolver, java.io.Serializable
    Direct Known Subclasses:
    MapperConfigBase
    public abstract class MapperConfig<T extends MapperConfig<T>>
extends java.lang.Object
implements ClassIntrospector.MixInResolver, java.io.Serializable
    Interface that defines functionality accessible through both serialization and deserialization configuration objects; accessors to mode-independent configuration settings and such. In addition, shared features are defined in MapperFeature.

    Small part of implementation is included here by aggregating BaseSettings instance that contains configuration that is shared between different types of instances.

    See Also:
    Serialized Form

    • Method Detail

      • collectFeatureDefaults

        public static <F extends java.lang.Enum<F> & ConfigFeature> int collectFeatureDefaults​(java.lang.Class<F> enumClass)
        Method that calculates bit set (flags) of all features that are enabled by default.

      • with

        public abstract T with​(MapperFeature... features)
        Method for constructing and returning a new instance with specified mapper features enabled.

      • without

        public abstract T without​(MapperFeature... features)
        Method for constructing and returning a new instance with specified mapper features disabled.

      • with

        public abstract T with​(MapperFeature feature,
                       boolean state)
        Since:
        2.3

      • isEnabled

        public final boolean isEnabled​(MapperFeature f)
        Accessor for simple mapper features (which are shared for serialization, deserialization)

      • hasMapperFeatures

        @Deprecated
public final boolean hasMapperFeatures​(int featureMask)
        Deprecated.
        Since 2.13 -- no replacement
        "Bulk" access method for checking that all features specified by mask are enabled.
        Since:
        2.3

      • isEnabled

        public abstract boolean isEnabled​(DatatypeFeature feature)
        Accessor for checking whether give DatatypeFeature is enabled or not.
        Parameters:
        feature - Feature to check
        Returns:
        True if feature is enabled; false otherwise
        Since:
        2.15

      • getDatatypeFeatures

        public abstract DatatypeFeatures getDatatypeFeatures()
        Since:
        2.15

      • isAnnotationProcessingEnabled

        public final boolean isAnnotationProcessingEnabled()
        Method for determining whether annotation processing is enabled or not (default settings are typically that it is enabled; must explicitly disable).
        Returns:
        True if annotation processing is enabled; false if not

      • canOverrideAccessModifiers

        public final boolean canOverrideAccessModifiers()
        Accessor for determining whether it is ok to try to force override of access modifiers to be able to get or set values of non-public Methods, Fields; to invoke non-public Constructors, Methods; or to instantiate non-public Classes. By default this is enabled, but on some platforms it needs to be prevented since if this would violate security constraints and cause failures.
        Returns:
        True if access modifier overriding is allowed (and may be done for any Field, Method, Constructor or Class); false to prevent any attempts to override.

      • shouldSortPropertiesAlphabetically

        public final boolean shouldSortPropertiesAlphabetically()
        Accessor for checking whether default settings for property handling indicate that properties should be alphabetically ordered or not.

      • useRootWrapping

        public abstract boolean useRootWrapping()
        Accessor for checking whether configuration indicates that "root wrapping" (use of an extra property/name pair at root level) is expected or not.

      • compileString

        public SerializableString compileString​(java.lang.String src)
        Method for constructing a specialized textual object that can typically be serialized faster than basic String (depending on escaping needed if any, char-to-byte encoding if needed).
        Parameters:
        src - Text to represent
        Returns:
        Optimized text object constructed
        Since:
        2.4

      • getAnnotationIntrospector

        public AnnotationIntrospector getAnnotationIntrospector()
        Method for getting AnnotationIntrospector configured to introspect annotation values used for configuration.

        Non-final since it is actually overridden by sub-classes (for now?)

      • getDefaultTyper

        public final TypeResolverBuilder<?> getDefaultTyper​(JavaType baseType)
        Method called to locate a type info handler for types that do not have one explicitly declared via annotations (or other configuration). If such default handler is configured, it is returned; otherwise null is returned.

      • getSubtypeResolver

        public abstract SubtypeResolver getSubtypeResolver()

      • getTypeFactory

        public final TypeFactory getTypeFactory()

      • constructType

        public final JavaType constructType​(java.lang.Class<?> cls)
        Helper method that will construct JavaType for given raw class. This is a simple short-cut for: 
            getTypeFactory().constructType(cls);

      • constructType

        public final JavaType constructType​(TypeReference<?> valueTypeRef)
        Helper method that will construct JavaType for given type reference This is a simple short-cut for: 
            getTypeFactory().constructType(valueTypeRef);

      • constructSpecializedType

        public JavaType constructSpecializedType​(JavaType baseType,
                                         java.lang.Class<?> subclass)

      • introspectClassAnnotations

        public BeanDescription introspectClassAnnotations​(java.lang.Class<?> cls)
        Accessor for getting bean description that only contains class annotations: useful if no getter/setter/creator information is needed.

      • introspectClassAnnotations

        public BeanDescription introspectClassAnnotations​(JavaType type)
        Accessor for getting bean description that only contains class annotations: useful if no getter/setter/creator information is needed.

      • introspectDirectClassAnnotations

        public BeanDescription introspectDirectClassAnnotations​(java.lang.Class<?> cls)
        Accessor for getting bean description that only contains immediate class annotations: ones from the class, and its direct mix-in, if any, but not from super types.

      • introspectDirectClassAnnotations

        public final BeanDescription introspectDirectClassAnnotations​(JavaType type)
        Accessor for getting bean description that only contains immediate class annotations: ones from the class, and its direct mix-in, if any, but not from super types.

      • findConfigOverride

        public abstract ConfigOverride findConfigOverride​(java.lang.Class<?> type)
        Accessor for finding ConfigOverride to use for properties of given type, if any exist; or return `null` if not.

        Note that only directly associated override is found; no type hierarchy traversal is performed.

        Returns:
        Override object to use for the type, if defined; null if none.
        Since:
        2.8

      • getConfigOverride

        public abstract ConfigOverride getConfigOverride​(java.lang.Class<?> type)
        Accessor for finding ConfigOverride to use for properties of given type, if any exist; or if none, return an immutable "empty" instance with no overrides.

        Note that only directly associated override is found; no type hierarchy traversal is performed.

        Returns:
        Override object to use for the type, never null (but may be empty)
        Since:
        2.9

      • getDefaultPropertyInclusion

        public abstract JsonInclude.Value getDefaultPropertyInclusion()
        Accessor for default property inclusion to use for serialization, used unless overridden by per-type or per-property overrides.
        Since:
        2.7

      • getDefaultPropertyInclusion

        public abstract JsonInclude.Value getDefaultPropertyInclusion​(java.lang.Class<?> baseType)
        Accessor for default property inclusion to use for serialization, considering possible per-type override for given base type.
        NOTE: if no override found, defaults to value returned by getDefaultPropertyInclusion().
        Since:
        2.7

      • getDefaultPropertyInclusion

        public JsonInclude.Value getDefaultPropertyInclusion​(java.lang.Class<?> baseType,
                                                     JsonInclude.Value defaultIncl)
        Accessor for default property inclusion to use for serialization, considering possible per-type override for given base type; but if none found, returning given defaultIncl
        Parameters:
        defaultIncl - Inclusion setting to return if no overrides found.
        Since:
        2.8.2

      • getDefaultInclusion

        public abstract JsonInclude.Value getDefaultInclusion​(java.lang.Class<?> baseType,
                                                      java.lang.Class<?> propertyType)
        Accessor for default property inclusion to use for serialization, considering possible per-type override for given base type and possible per-type override for given property type.
        NOTE: if no override found, defaults to value returned by getDefaultPropertyInclusion().
        Parameters:
        baseType - Type of the instance containing the targeted property.
        propertyType - Type of the property to look up inclusion setting for.
        Since:
        2.9

      • getDefaultInclusion

        public JsonInclude.Value getDefaultInclusion​(java.lang.Class<?> baseType,
                                             java.lang.Class<?> propertyType,
                                             JsonInclude.Value defaultIncl)
        Accessor for default property inclusion to use for serialization, considering possible per-type override for given base type and possible per-type override for given property type; but if none found, returning given defaultIncl
        Parameters:
        baseType - Type of the instance containing the targeted property.
        propertyType - Type of the property to look up inclusion setting for.
        defaultIncl - Inclusion setting to return if no overrides found.
        Since:
        2.9

      • getDefaultPropertyFormat

        public abstract JsonFormat.Value getDefaultPropertyFormat​(java.lang.Class<?> baseType)
        Accessor for default format settings to use for serialization (and, to a degree deserialization), considering baseline settings and per-type defaults for given base type (if any).
        Since:
        2.7

      • getDefaultPropertyIgnorals

        public abstract JsonIgnoreProperties.Value getDefaultPropertyIgnorals​(java.lang.Class<?> baseType)
        Accessor for default property ignorals to use, if any, for given base type, based on config overrides settings (see findConfigOverride(Class)).
        Since:
        2.8

      • getDefaultPropertyIgnorals

        public abstract JsonIgnoreProperties.Value getDefaultPropertyIgnorals​(java.lang.Class<?> baseType,
                                                                      AnnotatedClass actualClass)
        Helper method that may be called to see if there are property ignoral definitions from annotations (via AnnotatedClass) or through "config overrides". If both exist, config overrides have precedence over class annotations.
        Since:
        2.8

      • getDefaultPropertyInclusions

        public abstract JsonIncludeProperties.Value getDefaultPropertyInclusions​(java.lang.Class<?> baseType,
                                                                         AnnotatedClass actualClass)
        Helper method that may be called to see if there are property inclusion definitions from annotations (via AnnotatedClass). TODO: config override.
        Since:
        2.12

      • getDefaultVisibilityChecker

        public abstract VisibilityChecker<?> getDefaultVisibilityChecker()
        Accessor for object used for determining whether specific property elements (method, constructors, fields) can be auto-detected based on their visibility (access modifiers). Can be changed to allow different minimum visibility levels for auto-detection. Note that this is the global handler; individual types (classes) can further override active checker used (using JsonAutoDetect annotation)

      • getDefaultVisibilityChecker

        public abstract VisibilityChecker<?> getDefaultVisibilityChecker​(java.lang.Class<?> baseType,
                                                                 AnnotatedClass actualClass)
        Accessor for object used for determining whether specific property elements (method, constructors, fields) can be auto-detected based on their visibility (access modifiers). This is based on global defaults (as would be returned by getDefaultVisibilityChecker(), but then modified by possible class annotation (see JsonAutoDetect) and/or per-type config override (see ConfigOverride.getVisibility()).
        Since:
        2.9

      • getDefaultSetterInfo

        public abstract JsonSetter.Value getDefaultSetterInfo()
        Accessor for the baseline setter info used as the global baseline, not considering possible per-type overrides.
        Returns:
        Global base settings; never null
        Since:
        2.9

      • getDefaultMergeable

        public abstract java.lang.Boolean getDefaultMergeable()
        Accessor for the baseline merge info used as the global baseline, not considering possible per-type overrides.
        Returns:
        Global base settings, if any; `null` if none.
        Since:
        2.9

      • getDefaultMergeable

        public abstract java.lang.Boolean getDefaultMergeable​(java.lang.Class<?> baseType)
        Accessor for the baseline merge info used for given type, including global defaults if no type-specific overrides defined.
        Returns:
        Type-specific settings (if any); global defaults (same as getDefaultMergeable()) otherwise, if any defined; or `null` if neither defined
        Since:
        2.9

      • getDateFormat

        public final java.text.DateFormat getDateFormat()
        Method for accessing currently configured (textual) date format that will be used for reading or writing date values (in case of writing, only if textual output is configured; not if dates are to be serialized as time stamps).

        Note that typically DateFormat instances are not thread-safe (at least ones provided by JDK): this means that calling code should clone format instance before using it.

        This method is usually only called by framework itself, since there are convenience methods available via DeserializationContext and SerializerProvider that take care of cloning and thread-safe reuse.

      • getLocale

        public final java.util.Locale getLocale()
        Method for accessing the default Locale to use for formatting, unless overridden by local annotations. Initially set to Locale.getDefault().

      • getTimeZone

        public final java.util.TimeZone getTimeZone()
        Method for accessing the default TimeZone to use for formatting, unless overridden by local annotations. Initially set to TimeZone.getDefault().

      • hasExplicitTimeZone

        public boolean hasExplicitTimeZone()
        Method for checking whether a TimeZone has been explicitly set for this configuring during construction of ObjectMapper or if it still has the default timezone/offset (zero-offset, "zulu").
        Returns:
        true if this configuration has explicitly specified TimeZone, or false if it uses the default time zone
        Since:
        2.12

      • getActiveView

        public abstract java.lang.Class<?> getActiveView()
        Accessor for finding currently active view, if any (null if none)

      • getBase64Variant

        public Base64Variant getBase64Variant()
        Method called during deserialization if Base64 encoded content needs to be decoded. Default version just returns default Jackson uses, which is modified-mime which does not add linefeeds (because those would have to be escaped in JSON strings); but this can be configured on ObjectWriter.

      • getAttributes

        public abstract ContextAttributes getAttributes()
        Method for accessing per-instance shared (baseline/default) attribute values; these are used as the basis for per-call attributes.
        Since:
        2.3

      • findRootName

        public abstract PropertyName findRootName​(java.lang.Class<?> rawRootType)
        Since:
        2.6

      • getCacheProvider

        public CacheProvider getCacheProvider()
        Since:
        2.16

      • typeResolverBuilderInstance

        public TypeResolverBuilder<?> typeResolverBuilderInstance​(Annotated annotated,
                                                          java.lang.Class<? extends TypeResolverBuilder<?>> builderClass)
        Method that can be called to obtain an instance of TypeIdResolver of specified type.

      • typeIdResolverInstance

        public TypeIdResolver typeIdResolverInstance​(Annotated annotated,
                                             java.lang.Class<? extends TypeIdResolver> resolverClass)
        Method that can be called to obtain an instance of TypeIdResolver of specified type.