Information About

Multimap
APPAREL
BABY
BEAUTY
BOOKS
CAR TOYS
CELL PHONES
DVD'S
ELECTRONICS
GOURMET FOOD
GROCERIES
HEALTH & PERSONAL
HOME & GARDEN
JEWELRY
MUSIC
MUSIC INSTRUMENTS
OFFICE PRODUCTS
SOFTWARE
SPORTING GOODS
TOOLS & HARDWARE
TOYS
VIDEO GAMES
SHOPPING HOME
MORE SHOPPING...



A multimap is a generalization of a Map or associative array Abstract Data Type in which more than one value may be associated with and returned for a given key. Both map and multimap are particular cases of Container (data Structure) (see for example Standard Template Library#Containers ). Often the multimap is implemented as a map with List s as a values.


EXAMPLES

  • In a student enrollment system, where students may be enrolled in multiple classes simultaneously, there might be an association for each enrollment of a student in a course, where the key is the student ID and the value is the course ID. If a student is enrolled in three courses, there will be three associations containing the same key.

  • The index of a book may report any number of references for a given index term, and thus may be coded as a multimap from index terms to any number of reference locations.



SEE ALSO