RDF::Core::Storage::DB_File(3pm) - phpMan

RDF::Core::Storage::DB_File(3pmUser Contributed Perl DocumentatioRDF::Core::Storage::DB_File(3pm)



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 AT gingerall.cz

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



perl v5.10.0                                2007-02-19           RDF::Core::Storage::DB_File(3pm)

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