| dbInit {filehash} | R Documentation |
Simple file-based hash table
Description
Interface for creating and initializing a simple file-based hash table
Usage
dbCreate(db, ...)
dbInit(db, ...)
## S4 method for signature 'ANY'
dbCreate(db, type = NULL, ...)
## S4 method for signature 'ANY'
dbInit(db, type = NULL, ...)
Arguments
db |
name of database or a database object |
type |
type of database format. If missing, the default type will be used |
... |
other arguments passed to methods |
Details
dbCreate creates the necessary files or directory for the
database. If those files already exist nothing is done.
dbInit takes a database name and returns an object
inheriting from class "filehash".
The type argument specifies the format in which the database
should be stored on the disk. If not specified, the default
type will be used (as specified by filehashOption).
Value
dbCreate returns TRUE upon success and FALSE in
the event of an error. dbInit returns an object
inheriting from class "filehash"
Note
The function dbInitialize has been deprecated. Use
dbInit instead.
Author(s)
Roger D. Peng
See Also
See filehash-class more information and examples and
filehashOption for setting the default database type.