- $gen->add_relation( first , second )
- add_list_first / add_list_second ->(key, list_reference)
CDB_File::BiIndex::Generator - build the cdbmake files for a bidirectional index
use CDB_File::BiIndex::Generator; $gen = new CDB_File::BiIndex::Generator "test"; $gen->add_relation("USA", "London"); $gen->add_relation("Malawi", "Lilongwe"); $gen->finish();
A CDB_File::BiIndex is designed to keep pairs of values and be able to look up bi-directional multivalued relations. This package is designed to generate one of these indexes statically using CDB.
At present this package is a complete hack designed simply to output the two lists in the very specific case which I need.
Please see the example in the CDB_File::BiIndex documentation. This shows both how to generate and use an index.
new (CLASS, database_filenamebase) new (CLASS, first_database_filename, second_database_filename)
New opens and sets up the databases ready for writing.
Adds a key value pair to the database.
Writes the database so that it is ready for use by CDB_BiIndex.
These functions add an entire set of relations of one string to a list of other strings
add_list_first puts makes the key a key in the first index.
add_list_second puts the list in the first index and the key in the second.