    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.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     */
    033    public enum SinkMode
    034      {
    035        KEEP,
    036        REPLACE,
    037        UPDATE
    038      }