001    /*
002     * Copyright (c) 2007-2015 Concurrent, Inc. All Rights Reserved.
003     *
004     * Project and contact information: http://www.cascading.org/
005     *
006     * This file is part of the Cascading project.
007     *
008     * Licensed under the Apache License, Version 2.0 (the "License");
009     * you may not use this file except in compliance with the License.
010     * You may obtain a copy of the License at
011     *
012     *     http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing, software
015     * distributed under the License is distributed on an "AS IS" BASIS,
016     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017     * See the License for the specific language governing permissions and
018     * limitations under the License.
019     */
020    
021    package cascading.management.annotation;
022    
023    import java.lang.annotation.ElementType;
024    import java.lang.annotation.Retention;
025    import java.lang.annotation.RetentionPolicy;
026    import java.lang.annotation.Target;
027    
028    /**
029     * PropertyOrder is an annotation at the class level that controls the sort order of the Property annotations present
030     * on that class.
031     * </p>
032     * Order.DECLARED is the default sort order in which the properties are returned in the order they are returned by the
033     * reflection API of the JVM. This can be implementation specific and is not guaranteed to be stable.
034     * <p/>
035     * Using Order.ALPHABETICAL will cause the properties to be sorted alphabetically.
036     * <p/>
037     * Order.GIVEN and an array of Strings containing <em>all</em> properties of that class, will result in a custom order.
038     */
039    @Retention(RetentionPolicy.RUNTIME)
040    @Target(ElementType.TYPE)
041    public @interface PropertyOrder
042      {
043      Order order() default Order.DECLARED;
044    
045      String[] properties() default {};
046      }