    001    /*
    002     * Copyright (c) 2007-2014 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     * Property annotations can be used to send additional information about certain aspects of Cascading classes
    030     * to the {@link cascading.management.DocumentService}.  The properties are present at runtime and allow a
    031     * DocumentService to inspect, process or persist them.
    032     * <p/>
    033     * Property annotations can be applied to {@link cascading.tap.Tap}s, {@link cascading.scheme.Scheme}s,
    034     * {@link cascading.flow.Flow}s, {@link cascading.operation.Function}s and {@link cascading.operation.Filter}s.
    035     * <p/>
    036     *
    037     * @Property annotations can be applied to public methods and public fields, so that they can be accessed via
    038     * java.lang.Class#getMethods() and java.lang.Class.getFields() respectively. Adding @Property annotations on any
    039     * non-public method or field will have no effect.
    040     */
    041    @Retention(RetentionPolicy.RUNTIME)
    042    @Target({ElementType.METHOD, ElementType.FIELD})
    043    public @interface Property
    044      {
    045      String name();
    046
    047      Visibility visibility();
    048      }