get the value of the grouping key for the current group concode_field_sep XPathContext keyContext concode_elem_sep List<List<Item>> groups concode_elem_sep StringCollator collator concode_elem_sep Expression keyExpression concode_elem_sep int position concode_elem_sep List<AtomicValue> groupKeys concode_elem_sep AtomicComparer comparer concode_elem_sep SequenceIterator population concode_field_sep Item next concode_elem_sep SequenceIterator iterateCurrentGroup concode_elem_sep List getCurrentGroup concode_elem_sep Item current concode_elem_sep int getProperties concode_elem_sep void buildIndexedGroups concode_elem_sep boolean hasNext concode_elem_sep int position concode_elem_sep int getLastPosition concode_elem_sep SequenceIterator getAnother concode_elem_sep void close concode_elem_sep void processItem
AtomicValue function ( ) { return groupKeys . get ( position - 1 ) ; }