/ 
RDF-Core-0.51
River stage one • 5 direct dependents • 7 total dependents
/ RDF::Core::Storage

NAME

RDF::Core::Storage - An abstract ancestor of storage implementations

DESCRIPTION

Storage is the place where statements reside. It can add, remove, count and get statements and ask about their existence.

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.)

LICENSE

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

AUTHOR

Ginger Alliance, rdf@gingerall.cz

SEE ALSO

RDF::Core::Storage::Memory, RDF::Core::Storage::DB_File, RDF::Core::Storage::Postgres