Link

Tell the registry system to link this object to a registered object.

Field with this annotation must be non-final, or registration system will throw an error. Field with this annotation should be null, or value will be overwritten.

For example, if you have registered a block, you can create an item field with this annotation. Registration system will create a BlockItem and give it to the field.

@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD})
public @interface Link {
    /**
     * The target object ID. Must in identifier format (namespace:path).
     *
     * @return {@link String }
     * @see Identifier
     */
    TargetId target() default @TargetId(value = "");

    /**
     * The target objects ID.
     *
     * @return {@link TargetId[] }
     */
    TargetId[] targets() default {};

    /**
     * The object type you want to link.
     *
     * @return {@link TargetType }
     * @see TargetType
     */
    TargetType type();
}

TargetType

Link target type for @Link annotation.

public enum TargetType {
    /**
     * Link to a `Block` and need 1 target
     */
    BLOCK,
    /**
     * Link to a `SkullBlock` and need 2 targets
     */
    SKULL
}