public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
    switch (field) {
    case NODE_TYPE:
      if (value == null) {
        unsetNodeType();
      } else {
        setNodeType((NodeType)value);
      }
      break;

    case ROOTS:
      if (value == null) {
        unsetRoots();
      } else {
        setRoots((java.util.List<java.lang.String>)value);
      }
      break;

    case ADJACENCY_LIST:
      if (value == null) {
        unsetAdjacencyList();
      } else {
        setAdjacencyList((java.util.List<Adjacency>)value);
      }
      break;

    }
  }
Returns true if field adjacencyList is set (has been assigned a value) and false otherwise
ql/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/ql/plan/api/Graph.java