AutoValue: Map Extension

Type-safe immutable generated value-type maps

An AutoValue extension that generates a wrapper implementation for the Map<String, Object> interface, exposing all non-null properties.

Usage

auto-value-map recognizes and applies to all @AutoValue annotated classes implementing Map<String, Object>.

@AutoValue
public abstract class Foo implements Map<String, Object> {
    @MapKey("baz")
    public abstract String bar();
}

To use a different name than the property name as key, annotate the abstract method with @MapKey or any annotation with value @Json.name() or named @SerializedName, @Field, @Header, @Part or @Query. An empty key will default to the original property name.

Installation

Add a auto-value and auto-value-map dependency to the apt and the annotations with auto-value-map-no-proc to the provided or compileOnly configuration.

apt "com.google.auto.value:auto-value:$autoValueVersion"

apt "berlin.volders:auto-value-map:$autoValueMapVersion"
provided "berlin.volders:auto-value-map:$autoValueMapVersion:no-proc"

Limitations

This AutoValueExtension consumes all entrySet(), isEmpty(), keySet(), size() and values() methods and thus such properties cannot be used.

License

Copyright (C) 2016 volders GmbH with <3 in Berlin

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.