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.flow;
022
023/**
024 * Constants to be used as key in {@link Flow#getFlowDescriptor()}.
025 * <p/>
026 * See also {@link FlowStepDescriptors}.
027 */
028public interface FlowDescriptors
029  {
030  /** String that can be used as a record separator. */
031  String VALUE_SEPARATOR = "\u001E";
032
033  /** Denotes a collection  of statements like SQL or similar. */
034  String STATEMENTS = "statements";
035
036  /** Denotes the type of statement in the current flow. e.g. SQL, Pig Latin etc. */
037  String STATEMENT_TYPES = "statement_types";
038
039  /** Briefly describes the current Flow * */
040  String DESCRIPTION = "description";
041  }