Read full documentation at http://immutables.org
Modern usage style, aka "sandwich"
// Define abstract value type using interface, abstract class or annotation
@Value.Immutable
public interface ValueObject extends WithValueObject {
// WithValueObject is not yet generated, We extend With* to inherit `with*` method signatures
String getName();
List<Integer> getCounts();
Optional<String> getDescription();
class Builder extends ImmutableValueObject.Builder {}
// ImmutableValueObject.Builder will be generated and
// our builder will inherit and reexport methods as it's own.
// Static nested Builder will inherit all the public method
// signatures of ImmutableValueObject.Builder
}
// Use generated immutable implementation and builder
ValueObject v =
new ValueObject.Builder()
.name("Nameless")
.description("present")
.addCounts(1)
.addCounts(2)
.build();
v = v.withName("Doe");
//fetch values via standard getters
List<Integer> counts = v.getCounts();
Optional<String> description = v.getDescription();
ImmutableValueObject then would not be used outside of generated type. See about this and other generation styles here
License
Copyright 2013-2023 Immutables Authors and Contributors
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.
See releases tab for release history. Archived changelog for earlier releases.