man RDF::Redland::Storage () - Redland RDF Storage Class

NAME

RDF::Redland::Storage - Redland RDF Storage Class

SYNOPSIS

  use RDF::Redland;
  my $storage=new RDF::Redland::Storage("hashes", "test", "new='yes',hash-type='memory'");
  ...

DESCRIPTION

Create objects for storing RDF::Redland::Model objects either persistently or in memory.

CONSTRUCTORS

new STORAGE_NAME [NAME [OPTIONS_STRING]]
Create a new RDF::Redland::Storage object for the storage factory named STORAGE_NAME with storage named NAME and storage options OPTIONS_STRING which are specific to the storage factory type. The storage options are formatted in the form key1='value1',key2='value2' and the single quotes are required. Currently defined storage options:
new='yes'
Create a new storage erasing any existing one (default).
write='yes'
Provide write access to store (default) otherwise is read only.
dir='DIR'
Work in DIR directory when creating files.
mode='MODE'
File creation mode, default is (octal) 0644 Takes decimal (123), hex (0x123) or octal (0123).
contexts='yes'
Enable statement contexts. Each statement can be stored with an optional context Node and the context retrieved after queries.
hash-type='TYPE' (hashes storage only)
Use the TYPE hash-type for hashes storage. Current defined types are 'memory' and 'bdb' but is dependent on the hash factories available.
index-predicates='yes' (hashes storage only)
Enable indexing from predicates to (subject,object) which can in particular be useful for rdf:type relations. Example: 
  $storage=new RDF::Redland::Storage("hashes", "test", 
                            "new='yes',hash-type='bdb',dir='.'");
Creates a new storage of the hashes type (indexed hashes) named test (these will be file names or URIs if the storage is persistent) and with options new='yes',hash-type='bdb',dir='.' so a new storage is created with BerkeleyDB (BDB) key:value hashes i.e. persistent and in the current directory.
new_from_storage STORAGE
Create a new RDF::Redland::Storage object from RDF::Redland::Storage STORAGE (copy constructor). The new storage may have a new name chosen by the storage factory.

SEE ALSO

RDF::Redland::Model

AUTHOR

Dave Beckett - http://purl.org/net/dajobe/