content: package com.alibaba.datax.plugin.reader.gdbreader;
  
  public final class Key {
  
      /**
       * 此处声明插件用到的需要插件使用者提供的配置项
       */
      public final static String HOST = "host";
      public final static String PORT = "port";
      public final static String USERNAME = "username";
      public static final String PASSWORD = "password";
  
      public static final String LABEL = "labels";
      public static final String EXPORT_TYPE = "labelType";
  
      public static final String RANGE_SPLIT_SIZE = "RangeSplitSize";
      public static final String FETCH_BATCH_SIZE = "fetchBatchSize";
  
      public static final String COLUMN = "column";
      public static final String COLUMN_NAME = "name";
      public static final String COLUMN_TYPE = "type";
      public static final String COLUMN_NODE_TYPE = "columnType";
  
      public enum ExportType {
          /**
           * Import vertices
           */
          VERTEX,
          /**
           * Import edges
           */
          EDGE
      }
  
      public enum ColumnType {
          /**
           * vertex or edge id
           */
          primaryKey,
  
          /**
           * vertex or edge label
           */
          primaryLabel,
  
          /**
           * vertex property
           */
          vertexProperty,
  
          /**
           * collects all vertex property to Json list
           */
          vertexJsonProperty,
  
          /**
           * start vertex id of edge
           */
          srcPrimaryKey,
  
          /**
           * start vertex label of edge
           */
          srcPrimaryLabel,
  
          /**
           * end vertex id of edge
           */
          dstPrimaryKey,
  
          /**
           * end vertex label of edge
           */
          dstPrimaryLabel,
  
          /**
           * edge property
           */
          edgeProperty,
  
          /**
           * collects all edge property to Json list
           */
          edgeJsonProperty,
      }
  }
  