001/* 002 * Copyright (c) 2016-2017 Chris K Wensel <chris@wensel.net>. All Rights Reserved. 003 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved. 004 * 005 * Project and contact information: http://www.cascading.org/ 006 * 007 * This file is part of the Cascading project. 008 * 009 * Licensed under the Apache License, Version 2.0 (the "License"); 010 * you may not use this file except in compliance with the License. 011 * You may obtain a copy of the License at 012 * 013 * http://www.apache.org/licenses/LICENSE-2.0 014 * 015 * Unless required by applicable law or agreed to in writing, software 016 * distributed under the License is distributed on an "AS IS" BASIS, 017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 018 * See the License for the specific language governing permissions and 019 * limitations under the License. 020 */ 021 022package cascading.flow; 023 024/** 025 * Constants to be used as key in {@link FlowStep#getFlowStepDescriptor}. 026 * <p> 027 * See also {@link FlowDescriptors}. 028 */ 029public interface FlowNodeDescriptors 030 { 031 /** String that can be used as a record separator. */ 032 String VALUE_SEPARATOR = "\u001E"; 033 034 /** Briefly describes the current FlowStep * */ 035 String DESCRIPTION = "description"; 036 037 /** Code or line numbers to identify the code this node is executing */ 038 String TRACE = "trace"; 039 040 /** Id of the FlowStep in an external system * */ 041 String EXTERNAL_ID = "external_id"; 042 043 /** Name of the FlowStep in an external system * */ 044 String EXTERNAL_NAME = "external_name"; 045 046 /** URL of the FlowStep in an external system * */ 047 String EXTERNAL_URL = "external_url"; 048 }