ComputedColumnHelper( DataSetRuntime dataSet, List ccList)
ComputedColumnHelper( DataSetRuntime dataSet, List dataSetCCList, List resultSetCCList)
	ComputedColumnHelper( DataSetRuntime dataSet, List ccList)	{		logger.log( Level.FINER, "ComputedColumnHelper starts up" );		assert ccList != null && ccList.size( ) > 0;		this.ccList = ccList;		this.isPrepared = false;		this.dataSet = dataSet;	}