DBM_Filter(3p) Perl Programmers Reference Guide DBM_Filter(3p)

DBM_Filter(3p) Perl Programmers Reference Guide DBM_Filter(3p) # DBM_Filter(3p) Perl Programmers Reference Guide DBM_Filter(3p) NNAAMMEE # DBM_Filter -- Filter DBM keys/values SSYYNNOOPPSSIISS # use DBM_Filter ; use SDBM_File; # or DB_File, GDBM_File, NDBM_File, or ODBM_File $db = tie %hash, ... $db->Filter_Push(Fetch => sub {...}, Store => sub {...}); $db->Filter_Push('my_filter1'); $db->Filter_Push('my_filter2', params...); $db->Filter_Key_Push(...) ; $db->Filter_Value_Push(...) ; $db->Filter_Pop(); $db->Filtered(); package DBM_Filter::my_filter1; sub Store { ... } sub Fetch { ... } 1; package DBM_Filter::my_filter2; sub Filter { my @opts = @_; . ...