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RDF::Core::Storage::DBUsereContributed Perl DocuRDF::Core::Storage::DB_File(3)

NAME
       RDF::Core::Storage::DB_File - Berkeley DB 1.x implementation of
       RDF::Core::Storage

SYNOPSIS
	 require RDF::Core::Storage::DB_File;
	 my $storage = new RDF::Core::Storage::DB_File(Name =>'./rdfdata',
							MemLimit => 5000,
						       );
	 my $model = new RDF::Core::Model (Storage => $storage);

DESCRIPTION
       The storage is based on DB_File module and is using tie mechanism to
       access data.

   Interface
       o   new(%options)

	   Available options are:

	   o   Name

	       The name	of the storage.	Several	files will be created
	       beginning with the Name.	 If Name is undef, storage is held in
	       memory. Default value is	null.

	   o   Flags, Mode

	       The options is passed to	DB_File	module when tying variables.
	       Default values are O_CREAT|O_RDWR for Flags and 0666 for	Mode.

	   o   MemLimit

	       When statements are retrieved from the storage, they are	passed
	       as an in-memory implementation of enumerator
	       RDF::Core::Enumerator::Memory or	less-in-memory implementation
	       RDF::Core::Enumerator::DB_File. Setting MemLimit	to non-zero
	       says that storage should	never return Memory enumerator for
	       number of statements larger then	MemLimit. As the decision of
	       what to return is made before the accurate count	of statements
	       returned	is known, DB_File enumerator may be returned even if
	       MemLimit	is not exceeded.

	   o   Sync

	       A number	of write operations to process before synchronizing
	       storage data cache with disk. 0 means don't force
	       synchronizing.

       The rest	of the interface is described in RDF::Core::Storage.

LICENSE
       This package is subject to the MPL (or the GPL alternatively).

AUTHOR
       Ginger Alliance,	rdf@gingerall.cz

SEE ALSO
       DB_File,	RDF::Core::Storage, RDF::Core::Enumerator::Memory,
       RDF::Core::Enumerator::DB_File, RDF::Core::Model

perl v5.32.1			  2007-02-19	RDF::Core::Storage::DB_File(3)

NAME | SYNOPSIS | DESCRIPTION | LICENSE | AUTHOR | SEE ALSO

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