    001/*
    002 * Copyright (c) 2007-2016 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
    021package cascading.tap;
    022
    023/**
    024 * Enum SinkMode identifies supported modes a Tap may utilize when used as a sink.
    025 * <p/>
    026 * Mode KEEP is the default. Typically a failure will result if the resource exists and there is an attempt to
    027 * write to it.
    028 * <p/>
    029 * Mode REPLACE will delete/remove the resource before any attempts to write.
    030 * <p/>
    031 * Mode UPDATE will attempt to re-use to the resource, if supported, and update data in place.
    032 */
    033public enum SinkMode
    034  {
    035    KEEP,
    036    REPLACE,
    037    UPDATE
    038  }