question: sets the page value to previous page concode_field_sep Predicate predicate concode_elem_sep Comparator<Map.Entry> comparator concode_elem_sep IterationType iterationType concode_elem_sep Map.Entry<Integer,Map.Entry> NULL_ANCHOR concode_elem_sep int pageSize concode_elem_sep int page concode_elem_sep List<Map.Entry<Integer,Map.Entry>> anchorList concode_field_sep boolean isIndexed concode_elem_sep void readData concode_elem_sep Comparator<Map.Entry> getComparator concode_elem_sep boolean apply concode_elem_sep void nextPage concode_elem_sep int getPage concode_elem_sep Map.Entry<Integer,Map.Entry> getNearestAnchorEntry concode_elem_sep void setInnerPredicate concode_elem_sep void writeData concode_elem_sep IterationType getIterationType concode_elem_sep Set<QueryableEntry> filter concode_elem_sep int getPageSize concode_elem_sep Map.Entry getAnchor concode_elem_sep void setIterationType concode_elem_sep Predicate getPredicate concode_elem_sep void setAnchor concode_elem_sep void reset concode_elem_sep void setPage
target: void function ( ) { if ( page != 0 ) { page -- ; } }