Overview

This is a multi-module umbrella project for Jackson modules needed to support Java 8 features when core Jackson modules do not (yet) require Java 8 runtime (note: Jackson 3.0 will likely increase baseline and allow including some or all of this functionality)

This includes 3 modules:

• Parameter names: support for detecting constructor and factory method ("creator") parameters without having to use @JsonProperty annotation
• Java 8 Date/time: support for Java 8 date/time types (specified in JSR-310 specification)
• Java 8 Datatypes: support for other new Java 8 datatypes outside of date/time: most notably Optional, OptionalLong, OptionalDouble

all of which are built from this repository, and accessed and used as separate Jackson modules (with separate Maven artifacts).

License

All modules are licensed under Apache License 2.0.

Status

Usage

Maven dependencies

To include modules, you use some or all of:

<dependency>
    <groupId>com.fasterxml.jackson.module</groupId>
    <artifactId>jackson-module-parameter-names</artifactId>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jdk8</artifactId>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
</dependency>

and either include versions directly, OR, preferably, import Jackson BOM that will specify consistent version set.

Registering modules

ObjectMapper mapper = new ObjectMapper()
   .registerModule(new ParameterNamesModule())
   .registerModule(new Jdk8Module())
   .registerModule(new JavaTimeModule())
;

or, alternatively, you can also auto-discover these modules with:

ObjectMapper mapper = new ObjectMapper();
mapper.findAndRegisterModules();

Either way, after registration all functionality is available for all normal Jackson operations.

More

See Wiki for more information (javadocs).