001/*
002 * Copyright (c) 2007-2017 Xplenty, 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  }