public List < String > calculateRollupBaseFields ( ) { if ( rollupFrom == null ) { return getGroupByFields ( ) ; } List < String > result = new ArrayList < String > ( ) ; for ( SortElement element : commonCriteria . getElements ( ) ) { result . add ( element . getName ( ) ) ; if ( element . getName ( ) . equals ( rollupFrom ) ) { break ; } } return result ; }
Returns the fields that are a subset from the groupBy fields and will be used when rollup is needed .