void (_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) { switch (field) { case VAR_NAME: if (value == null) { unsetVarName(); } else { setVarName((java.lang.String)value); } break; case ACTION: if (value == null) { unsetAction(); } else { setAction((java.lang.String)value); } break; case MY_ARGS: if (value == null) { unsetMyArgs(); } else { setMyArgs((java.lang.String)value); } break; } }