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 }