/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.isis.applib.annotation;
import java.lang.annotation.*;
/**
* Indicates that the class should be automatically recognized as a domain service.
*
* <p>
* Also indicates whether the domain service acts as a repository for an entity, and menu ordering UI hints.
* </p>
*/
@Inherited
@Target({ ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface DomainService {
/**
* Provides the (first part of the) unique identifier (OID) for the service (the instanceId is always "1").
*
* <p>
* If not specified then either the optional "getId()" is used, otherwise the class' name.
*/
String objectType() default "";
/**
* If this domain service acts as a repository for an entity type, specify that entity type.
*/
Class<?> repositoryFor() default Object.class;
/**
* The nature of this service, eg for menus, contributed actions, repository.
*/
NatureOfService nature() default NatureOfService.VIEW;
/**
* Number in Dewey Decimal format representing the order.
*
* <p>
* Same convention as {@link MemberOrder#sequence()}. If not specified, placed after any named.
* </p>
*
* <p>
* Either this attribute or {@link DomainServiceLayout#menuOrder()} can be used; they are equivalent.
* Typically this attribute is used for services with a {@link #nature() nature} of
* {@link NatureOfService#DOMAIN domain} (these are not visible in the UI) whereas
* {@link DomainServiceLayout#menuOrder()} is used for services with a nature of
* {@link NatureOfService#VIEW_MENU_ONLY} (which do appear in the UI)
* </p>
*
* <p>
* The default value is set to "Integer.MAX_VALUE - 100" so that any domain services intended to override the
* default implementations provided by the framework itself will do so without having to specify the
* menuOrder (with the exception of <tt>EventBusServiceJdo</tt>, all framework implementations have a
* default order greater than Integer.MAX_VALUE - 50).
* </p>
*/
String menuOrder() default "" + (Integer.MAX_VALUE - 100) ;
}