/*
* This file is part of Gradoop.
*
* Gradoop is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Gradoop is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Gradoop. If not, see <http://www.gnu.org/licenses/>.
*/
package org.gradoop.flink.io.impl.json;
/**
* Constants needed for the JSON IO classes.
*/
public class JSONConstants {
/**
* Key for vertex, edge and graph id.
*/
public static final String IDENTIFIER = "id";
/**
* Key for meta Json object.
*/
public static final String META = "meta";
/**
* Key for data Json object.
*/
public static final String DATA = "data";
/**
* Key for vertex, edge and graph label.
*/
public static final String LABEL = "label";
/**
* Key for graph identifiers at vertices and edges.
*/
public static final String GRAPHS = "graphs";
/**
* Key for vertex identifiers at graphs.
*/
public static final String VERTICES = "vertices";
/**
* Key for edge identifiers at graphs.
*/
public static final String EDGES = "edges";
/**
* Key for edge source vertex id.
*/
public static final String EDGE_SOURCE = "source";
/**
* Key for edge target vertex id.
*/
public static final String EDGE_TARGET = "target";
}