@Override
    public boolean supportsResultGraphPersistCombination(final GraphComputer.ResultGraph resultGraph, final GraphComputer.Persist persist) {
        return persist.equals(GraphComputer.Persist.NOTHING) || resultGraph.equals(GraphComputer.ResultGraph.NEW);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
hadoop-gremlin/src/main/java/org/apache/tinkerpop/gremlin/hadoop/structure/io/CommonFileOutputFormat.java