boolean (_Fields field) { if (field == null) { throw new java.lang.IllegalArgumentException(); } switch (field) { case VARS: return isSetVars(); case ROW_OFFSET: return isSetRowOffset(); case COL_OFFSET: return isSetColOffset(); case ROWS: return isSetRows(); case COLS: return isSetCols(); case FORMAT: return isSetFormat(); } throw new java.lang.IllegalStateException(); }