com.fasterxml.jackson.databind.module

## Class SimpleSerializers

- java.lang.Object
- - com.fasterxml.jackson.databind.ser.Serializers.Base
  - - com.fasterxml.jackson.databind.module.SimpleSerializers

- All Implemented Interfaces:
    Serializers, java.io.Serializable

      public class SimpleSerializers
      extends Serializers.Base
      implements java.io.Serializable

  Simple implementation `Serializers` which allows registration of serializers based on raw (type erased class). It can work well for basic bean and scalar type serializers, but is not a good fit for handling generic types (like `Map`s and `Collection`s).

  Type registrations are assumed to be general; meaning that registration of serializer for a super type will also be used for handling subtypes, unless an exact match is found first. As an example, handler for `CharSequence` would also be used serializing `StringBuilder` instances, unless a direct mapping was found.

  See Also:
    Serialized Form

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface com.fasterxml.jackson.databind.ser.Serializers

      `Serializers.Base`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected java.util.HashMap<ClassKey,JsonSerializer<?>>` | `_classMappings` Class-based mappings that are used both for exact and sub-class matches.
    `protected boolean` | `_hasEnumSerializer` Flag to help find "generic" enum serializer, if one has been registered.
    `protected java.util.HashMap<ClassKey,JsonSerializer<?>>` | `_interfaceMappings` Interface-based matches.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SimpleSerializers()`
    `SimpleSerializers(java.util.List<JsonSerializer<?>> sers)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | `_addSerializer(java.lang.Class<?> cls, JsonSerializer<?> ser)`
    `protected JsonSerializer<?>` | `_findInterfaceMapping(java.lang.Class<?> cls, ClassKey key)`
    `<T> void` | `addSerializer(java.lang.Class<? extends T> type, JsonSerializer<T> ser)`
    `void` | `addSerializer(JsonSerializer<?> ser)` Method for adding given serializer for type that `JsonSerializer.handledType()` specifies (which MUST return a non-null class; and can NOT be `Object`, as a sanity check).
    `void` | `addSerializers(java.util.List<JsonSerializer<?>> sers)`
    `JsonSerializer<?>` | `findArraySerializer(SerializationConfig config, ArrayType type, BeanDescription beanDesc, TypeSerializer elementTypeSerializer, JsonSerializer<java.lang.Object> elementValueSerializer)` Method called by serialization framework first time a serializer is needed for specified array type.
    `JsonSerializer<?>` | `findCollectionLikeSerializer(SerializationConfig config, CollectionLikeType type, BeanDescription beanDesc, TypeSerializer elementTypeSerializer, JsonSerializer<java.lang.Object> elementValueSerializer)` Method called by serialization framework first time a serializer is needed for specified "Collection-like" type (type that acts like `Collection`, but does not implement it).
    `JsonSerializer<?>` | `findCollectionSerializer(SerializationConfig config, CollectionType type, BeanDescription beanDesc, TypeSerializer elementTypeSerializer, JsonSerializer<java.lang.Object> elementValueSerializer)` Method called by serialization framework first time a serializer is needed for specified `Collection` type.
    `JsonSerializer<?>` | `findMapLikeSerializer(SerializationConfig config, MapLikeType type, BeanDescription beanDesc, JsonSerializer<java.lang.Object> keySerializer, TypeSerializer elementTypeSerializer, JsonSerializer<java.lang.Object> elementValueSerializer)` Method called by serialization framework first time a serializer is needed for specified "Map-like" type (type that acts like `Map`, but does not implement it).
    `JsonSerializer<?>` | `findMapSerializer(SerializationConfig config, MapType type, BeanDescription beanDesc, JsonSerializer<java.lang.Object> keySerializer, TypeSerializer elementTypeSerializer, JsonSerializer<java.lang.Object> elementValueSerializer)` Method called by serialization framework first time a serializer is needed for specified `Map` type.
    `JsonSerializer<?>` | `findSerializer(SerializationConfig config, JavaType type, BeanDescription beanDesc)` Method called by serialization framework first time a serializer is needed for specified type, which is not of a container or reference type (for which other methods are called).

    - ### Methods inherited from class com.fasterxml.jackson.databind.ser.Serializers.Base

      `findReferenceSerializer`

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

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

- - ### Field Detail

    - #### _classMappings

          protected java.util.HashMap<ClassKey,JsonSerializer<?>> _classMappings

      Class-based mappings that are used both for exact and sub-class matches.

    - #### _interfaceMappings

          protected java.util.HashMap<ClassKey,JsonSerializer<?>> _interfaceMappings

      Interface-based matches.

    - #### _hasEnumSerializer

          protected boolean _hasEnumSerializer

      Flag to help find "generic" enum serializer, if one has been registered.
      Since:
        2.3

  - ### Constructor Detail

    - #### SimpleSerializers

          public SimpleSerializers()

    - #### SimpleSerializers

          public SimpleSerializers(java.util.List<JsonSerializer<?>> sers)

      Since:
        2.1

  - ### Method Detail

    - #### addSerializer

          public void addSerializer(JsonSerializer<?> ser)

      Method for adding given serializer for type that `JsonSerializer.handledType()` specifies (which MUST return a non-null class; and can NOT be `Object`, as a sanity check). For serializers that do not declare handled type, use the variant that takes two arguments.
      Parameters:
        `ser` -

    - #### addSerializer

          public <T> void addSerializer(java.lang.Class<? extends T> type,
                               JsonSerializer<T> ser)

    - #### addSerializers

          public void addSerializers(java.util.List<JsonSerializer<?>> sers)

      Since:
        2.1

    - #### findSerializer

          public JsonSerializer<?> findSerializer(SerializationConfig config,
                                         JavaType type,
                                         BeanDescription beanDesc)

      Description copied from interface: `Serializers`
      Method called by serialization framework first time a serializer is needed for specified type, which is not of a container or reference type (for which other methods are called).
      Specified by:
        `findSerializer` in interface `Serializers`
      Overrides:
        `findSerializer` in class `Serializers.Base`
      Parameters:
        `config` - Serialization configuration in use
        `type` - Fully resolved type of instances to serialize
        `beanDesc` - Additional information about type
      Returns:
        Configured serializer to use for the type; or null if implementation does not recognize or support type

    - #### findArraySerializer

          public JsonSerializer<?> findArraySerializer(SerializationConfig config,
                                              ArrayType type,
                                              BeanDescription beanDesc,
                                              TypeSerializer elementTypeSerializer,
                                              JsonSerializer<java.lang.Object> elementValueSerializer)

      Description copied from interface: `Serializers`
      Method called by serialization framework first time a serializer is needed for specified array type. Implementation should return a serializer instance if it supports specified type; or null if it does not.
      Specified by:
        `findArraySerializer` in interface `Serializers`
      Overrides:
        `findArraySerializer` in class `Serializers.Base`

    - #### findCollectionSerializer

          public JsonSerializer<?> findCollectionSerializer(SerializationConfig config,
                                                   CollectionType type,
                                                   BeanDescription beanDesc,
                                                   TypeSerializer elementTypeSerializer,
                                                   JsonSerializer<java.lang.Object> elementValueSerializer)

      Description copied from interface: `Serializers`
      Method called by serialization framework first time a serializer is needed for specified `Collection` type. Implementation should return a serializer instance if it supports specified type; or null if it does not.
      Specified by:
        `findCollectionSerializer` in interface `Serializers`
      Overrides:
        `findCollectionSerializer` in class `Serializers.Base`

    - #### findCollectionLikeSerializer

          public JsonSerializer<?> findCollectionLikeSerializer(SerializationConfig config,
                                                       CollectionLikeType type,
                                                       BeanDescription beanDesc,
                                                       TypeSerializer elementTypeSerializer,
                                                       JsonSerializer<java.lang.Object> elementValueSerializer)

      Description copied from interface: `Serializers`
      Method called by serialization framework first time a serializer is needed for specified "Collection-like" type (type that acts like `Collection`, but does not implement it). Implementation should return a serializer instance if it supports specified type; or null if it does not.
      Specified by:
        `findCollectionLikeSerializer` in interface `Serializers`
      Overrides:
        `findCollectionLikeSerializer` in class `Serializers.Base`

    - #### findMapSerializer

          public JsonSerializer<?> findMapSerializer(SerializationConfig config,
                                            MapType type,
                                            BeanDescription beanDesc,
                                            JsonSerializer<java.lang.Object> keySerializer,
                                            TypeSerializer elementTypeSerializer,
                                            JsonSerializer<java.lang.Object> elementValueSerializer)

      Description copied from interface: `Serializers`
      Method called by serialization framework first time a serializer is needed for specified `Map` type. Implementation should return a serializer instance if it supports specified type; or null if it does not.
      Specified by:
        `findMapSerializer` in interface `Serializers`
      Overrides:
        `findMapSerializer` in class `Serializers.Base`

    - #### findMapLikeSerializer

          public JsonSerializer<?> findMapLikeSerializer(SerializationConfig config,
                                                MapLikeType type,
                                                BeanDescription beanDesc,
                                                JsonSerializer<java.lang.Object> keySerializer,
                                                TypeSerializer elementTypeSerializer,
                                                JsonSerializer<java.lang.Object> elementValueSerializer)

      Description copied from interface: `Serializers`
      Method called by serialization framework first time a serializer is needed for specified "Map-like" type (type that acts like `Map`, but does not implement it). Implementation should return a serializer instance if it supports specified type; or null if it does not.
      Specified by:
        `findMapLikeSerializer` in interface `Serializers`
      Overrides:
        `findMapLikeSerializer` in class `Serializers.Base`

    - #### _findInterfaceMapping

          protected JsonSerializer<?> _findInterfaceMapping(java.lang.Class<?> cls,
                                                ClassKey key)

    - #### _addSerializer

          protected void _addSerializer(java.lang.Class<?> cls,
                            JsonSerializer<?> ser)