Interface

• new(\%options)

  Options depend on implementation of descendant. (Such as RDF::Core::Storage::Memory, RDF::Core::Storage::DB_File, RDF::Core::Storage::Postgres.)

• addStmt($statement)

  Add RDF::Core::Statement instance to the storage, unless it already exists there.

• removeStmt($statement)

  Remove statement from the storage, if it's there.

• existsStmt($subject,$predicate,$object)

  Check if statement exists, that matches given mask. Parameters can be undefined, every value matches undefined parameter.

• countStmts($subject,$predicate,$object)

  Count matching statements.

• getStmts($subject,$predicate,$object)

  Retrieve matching statements. Returns RDF::Core::Enumerator object. (One of it's descendants.)