Class JsonMapper

java.lang.Object

tools.jackson.databind.ObjectMapper

tools.jackson.databind.json.JsonMapper

All Implemented Interfaces:

Serializable, tools.jackson.core.TreeCodec<JsonNode>, tools.jackson.core.Versioned

public class JsonMapper
extends ObjectMapper

JSON-specific ObjectMapper implementation.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JsonMapper.Builder	Base implementation for "Vanilla" ObjectMapper, used with JSON dataformat backend.
private static final class	JsonMapper.SharedWrapper	Helper class to contain dynamically constructed "shared" instance of mapper, should one be needed via shared().

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID

Fields inherited from class ObjectMapper

_deserializationConfig, _deserializationContexts, _injectableValues, _rootDeserializers, _savedBuilderState, _serializationConfig, _serializationContexts, _streamFactory, _typeFactory

Constructor Summary

Constructors

Constructor	Description
JsonMapper()
JsonMapper(tools.jackson.core.json.JsonFactory f)
JsonMapper(JsonMapper.Builder b)

Method Summary

Modifier and Type	Method	Description
static JsonMapper.Builder	builder()
static JsonMapper.Builder	builder(tools.jackson.core.json.JsonFactory streamFactory)
static JsonMapper.Builder	builderWithJackson2Defaults()	Modifies the settings of this builder to more closely match the default configs used in Jackson 2.x versions.
boolean	isEnabled(tools.jackson.core.json.JsonReadFeature f)
boolean	isEnabled(tools.jackson.core.json.JsonWriteFeature f)
JsonMapper.Builder	rebuild()	Method for creating a new MapperBuilder for constructing differently configured ObjectMapper instance, starting with current configuration including base settings and registered modules.
static JsonMapper	shared()	Accessor method for getting globally shared "default" JsonMapper instance: one that has default configuration, no modules registered, no config overrides.
tools.jackson.core.json.JsonFactory	tokenStreamFactory()	Method that can be used to get hold of TokenStreamFactory that this mapper uses if it needs to construct JsonParsers and/or JsonGenerators.
tools.jackson.core.Version	version()	Method that will return version information stored in and read from jar that contains this class.

Methods inherited from class ObjectMapper

_assertNotNull, _configAndWriteValue, _convert, _deserializationContext, _deserializationContext, _deserializationContext, _findRootDeserializer, _initForReading, _newReader, _newReader, _newWriter, _newWriter, _newWriter, _readMapAndClose, _readTreeAndClose, _readValue, _serializationContext, _serializationContext, _verifyNoTrailingTokens, _verifySchemaType, _writeCloseableValue, acceptJsonFormatVisitor, acceptJsonFormatVisitor, acceptJsonFormatVisitor, booleanNode, clearCaches, constructType, constructType, convertValue, convertValue, convertValue, createArrayNode, createGenerator, createGenerator, createGenerator, createGenerator, createGenerator, createGenerator, createNonBlockingByteArrayParser, createNonBlockingByteBufferParser, createObjectNode, createParser, createParser, createParser, createParser, createParser, createParser, createParser, createParser, createParser, createParser, deserializationConfig, getInjectableValues, getNodeFactory, getTypeFactory, isEnabled, isEnabled, isEnabled, isEnabled, isEnabled, isEnabled, isEnabled, missingNode, nullNode, reader, reader, reader, reader, reader, reader, reader, reader, reader, readerFor, readerFor, readerFor, readerForArrayOf, readerForListOf, readerForMapOf, readerForUpdating, readerWithView, readResolve, readTree, readTree, readTree, readTree, readTree, readTree, readTree, readTree, readTree, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValue, readValues, readValues, readValues, registeredModules, serializationConfig, stringNode, treeAsTokens, treeToValue, treeToValue, treeToValue, treeToValue, treeToValue, treeToValue, updateValue, valueToTree, writer, writer, writer, writer, writer, writer, writer, writer, writer, writer, writeReplace, writerFor, writerFor, writerFor, writerWithDefaultPrettyPrinter, writerWithView, writeTree, writeValue, writeValue, writeValue, writeValue, writeValue, writeValue, writeValueAsBytes, writeValueAsString, writeValueIntoBuffer

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

Constructor Details

JsonMapper

public JsonMapper()

JsonMapper

public JsonMapper(tools.jackson.core.json.JsonFactory f)

JsonMapper

public JsonMapper(JsonMapper.Builder b)

Method Details

builder

public static JsonMapper.Builder builder()

builder

public static JsonMapper.Builder builder(tools.jackson.core.json.JsonFactory streamFactory)

builderWithJackson2Defaults

public static JsonMapper.Builder builderWithJackson2Defaults()

Modifies the settings of this builder to more closely match the default configs used in Jackson 2.x versions.

This method is still a work in progress and may not yet fully replicate the default settings of Jackson 2.x.

rebuild

public JsonMapper.Builder rebuild()

Description copied from class: ObjectMapper

Method for creating a new MapperBuilder for constructing differently configured ObjectMapper instance, starting with current configuration including base settings and registered modules.

Overrides:

rebuild in class ObjectMapper

shared

public static JsonMapper shared()

Accessor method for getting globally shared "default" JsonMapper instance: one that has default configuration, no modules registered, no config overrides. Usable mostly when dealing "untyped" or Tree-style content reading and writing.

version

public tools.jackson.core.Version version()

Description copied from class: ObjectMapper

Method that will return version information stored in and read from jar that contains this class.

Specified by:

version in interface tools.jackson.core.Versioned

Overrides:

version in class ObjectMapper

tokenStreamFactory

public tools.jackson.core.json.JsonFactory tokenStreamFactory()

Description copied from class: ObjectMapper

Method that can be used to get hold of TokenStreamFactory that this mapper uses if it needs to construct JsonParsers and/or JsonGenerators.

WARNING: note that all ObjectReader and ObjectWriter instances created by this mapper usually share the same configured TokenStreamFactory, so changes to its configuration will "leak". To avoid such observed changes you should always use "with()" and "without()" method of ObjectReader and ObjectWriter for changing StreamReadFeature and StreamWriteFeature settings to use on per-call basis.

Overrides:

tokenStreamFactory in class ObjectMapper

Returns:

TokenStreamFactory that this mapper uses when it needs to construct Json parser and generators

isEnabled

public boolean isEnabled(tools.jackson.core.json.JsonReadFeature f)

isEnabled

public boolean isEnabled(tools.jackson.core.json.JsonWriteFeature f)