com.fasterxml.jackson.databind.ser.impl
Class StringCollectionSerializer

java.lang.Object
  com.fasterxml.jackson.databind.JsonSerializer<T>
      com.fasterxml.jackson.databind.ser.std.StdSerializer<T>
          com.fasterxml.jackson.databind.ser.std.StaticListSerializerBase<Collection<String>>
              com.fasterxml.jackson.databind.ser.impl.StringCollectionSerializer

All Implemented Interfaces:

SchemaAware, ContextualSerializer

public class StringCollectionSerializer
extends StaticListSerializerBase<Collection<String>>
implements ContextualSerializer

Efficient implement for serializing Collections that contain Strings. The only complexity is due to possibility that serializer for String may be overridde; because of this, logic is needed to ensure that the default serializer is in use to use fastest mode, or if not, to defer to custom String serializer.

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonSerializer

JsonSerializer.None

Field Summary

protected JsonSerializer<String>	_serializer
static StringCollectionSerializer	instance

Fields inherited from class com.fasterxml.jackson.databind.ser.std.StdSerializer

_handledType

Constructor Summary

protected	StringCollectionSerializer()
protected	StringCollectionSerializer(JsonSerializer<?> ser)

Method Summary

protected JsonNode	contentSchema()
JsonSerializer<?>	createContextual(SerializerProvider provider, BeanProperty property) Method called to see if a different (or differently configured) serializer is needed to serialize values of specified property.
void	serialize(Collection<String> value, com.fasterxml.jackson.core.JsonGenerator jgen, SerializerProvider provider) Method that can be called to ask implementation to serialize values of type this serializer handles.
void	serializeWithType(Collection<String> value, com.fasterxml.jackson.core.JsonGenerator jgen, SerializerProvider provider, TypeSerializer typeSer) Method that can be called to ask implementation to serialize values of type this serializer handles, using specified type serializer for embedding necessary type information.

Methods inherited from class com.fasterxml.jackson.databind.ser.std.StaticListSerializerBase

getSchema, isEmpty

Methods inherited from class com.fasterxml.jackson.databind.ser.std.StdSerializer

createObjectNode, createSchemaNode, createSchemaNode, handledType, isDefaultSerializer, wrapAndThrow, wrapAndThrow

Methods inherited from class com.fasterxml.jackson.databind.JsonSerializer

isUnwrappingSerializer, unwrappingSerializer, usesObjectId

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final StringCollectionSerializer instance

_serializer

protected final JsonSerializer<String> _serializer

Constructor Detail

StringCollectionSerializer

protected StringCollectionSerializer()

StringCollectionSerializer

protected StringCollectionSerializer(JsonSerializer<?> ser)

Method Detail

contentSchema

protected JsonNode contentSchema()

Specified by:

contentSchema in class StaticListSerializerBase<Collection<String>>

createContextual

public JsonSerializer<?> createContextual(SerializerProvider provider,
                                          BeanProperty property)
                                   throws JsonMappingException

Description copied from interface: ContextualSerializer

Method called to see if a different (or differently configured) serializer is needed to serialize values of specified property. Note that instance that this method is called on is typically shared one and as a result method should NOT modify this instance but rather construct and return a new instance. This instance should only be returned as-is, in case it is already suitable for use.

Specified by:

createContextual in interface ContextualSerializer

Parameters:

provider - Serializer provider to use for accessing config, other serializers

property - Method or field that represents the property (and is used to access value to serialize). Should be available; but there may be cases where caller can not provide it and null is passed instead (in which case impls usually pass 'this' serializer as is)

Returns:

Serializer to use for serializing values of specified property; may be this instance or a new instance.

Throws:

JsonMappingException

serialize

public void serialize(Collection<String> value,
                      com.fasterxml.jackson.core.JsonGenerator jgen,
                      SerializerProvider provider)
               throws IOException,
                      com.fasterxml.jackson.core.JsonGenerationException

Description copied from class: JsonSerializer

Method that can be called to ask implementation to serialize values of type this serializer handles.

Specified by:

serialize in class StdSerializer<Collection<String>>

Parameters:

value - Value to serialize; can not be null.

jgen - Generator used to output resulting Json content

provider - Provider that can be used to get serializers for serializing Objects value contains, if any.

Throws:

IOException

com.fasterxml.jackson.core.JsonGenerationException

serializeWithType

public void serializeWithType(Collection<String> value,
                              com.fasterxml.jackson.core.JsonGenerator jgen,
                              SerializerProvider provider,
                              TypeSerializer typeSer)
                       throws IOException,
                              com.fasterxml.jackson.core.JsonGenerationException

Description copied from class: JsonSerializer

Method that can be called to ask implementation to serialize values of type this serializer handles, using specified type serializer for embedding necessary type information.

Default implementation will throw UnsupportedOperationException to indicate that proper type handling needs to be implemented.

For simple datatypes written as a single scalar value (JSON String, Number, Boolean), implementation would look like:

  // note: method to call depends on whether this type is serialized as JSON scalar, object or Array!
  typeSer.writeTypePrefixForScalar(value, jgen);
  serialize(value, jgen, provider);
  typeSer.writeTypeSuffixForScalar(value, jgen);

and implementations for type serialized as JSON Arrays or Objects would differ slightly, as START-ARRAY>/END-ARRAY and START-OBJECT>/END-OBJECT pairs need to be properly handled with respect to serializing of contents.

Overrides:

serializeWithType in class JsonSerializer<Collection<String>>

Parameters:

value - Value to serialize; can not be null.

jgen - Generator used to output resulting Json content

provider - Provider that can be used to get serializers for serializing Objects value contains, if any.

typeSer - Type serializer to use for including type information

Throws:

IOException

com.fasterxml.jackson.core.JsonGenerationException