CollectionJson.java

@Data
@Value
@Builder(builderMethodName = "collectionJson")
public class CollectionJson<T> {

	private String version;
	private String href;
	private List<Link> links;
	@Singular private List<Item<T>> items;

	@JsonCreator
	public CollectionJson(@JsonProperty("version") String version, @JsonProperty("href") String href,
						  @JsonProperty("links") List<Link> links, @JsonProperty("items") List<Item<T>> items) {
		this.version = version;
		this.href = href;
		this.links = links;
		this.items = items;
	}

	public static Item.ItemBuilder item() {
		return Item.builder();
	}

}