RDF::Redland::QueryResults(3pm) User Contributed Perl Documentation RDF::Redland::QueryResults(3pm)NAME
RDF::Redland::QueryResults - Redland RDF Syntax Query Results Class
SYNOPSIS
use RDF::Redland;
...
my $query=new RDF::Redland::Query("query string", undef, undef, "sparql");
my $results=$model->query_execute($query);
# or my $results=$query->execute($model);
while(!$results->finished) {
for (my $i=0; $i < $results->bindings_count(); $i++) {
my $name=$results->binding_name($i);
my $value=$results->binding_value($i);
# ... do something with the results
}
$results->next_result;
}
The $results in the example is an object of class RDF::Redland::QueryResults.
DESCRIPTION
This class represents queries of various syntaxes over an RDF::Redland::Model returning a sequence of results that bind variable names to
RDF::Redland::Node values.
CONSTRUCTOR
There are no public constructors.
METHODS
count
Return the number of current results from the query.
finished
Return non-0 if the results have been exhausted.
binding_name INDEX
Get the name of variable binding INDEX in the array of variable names.
binding_names
Get the names all of the variable bindings as an array.
binding_value INDEX
Get the value of the variable binding INDEX in the current query result.
binding_values
Get the values of all of the variable bindings in the current query result.
binding_value_by_name NAME
Get the value of the variable binding NAME in the current query result.
bindings
Get the variable names and values of the current query result as a hash
bindings_count
Return the number of variable bindings.
next_result
Move to the next query result.
as_stream
Return a new RDF::Redland::Stream object representing the query results as an RDF Graph.
to_string [FORMAT-URI [BASE-URI]]
Serialize to a string syntax in format FORMAT-URI using the optional BASE-URI. The default format when none is given is determined by
librdf_query_results_to_string.
is_bindings
Return non-0 if the query results format is variable bindings
is_boolean
Return non-0 if the query results format is a boolean
is_graph
Return non-0 if the query results format is an RDF graph
get_boolean
Get the boolean query result; non-0 is true.
SEE ALSO
RDF::Redland::Query
AUTHOR
Dave Beckett - http://www.dajobe.org/
perl v5.14.2 2011-02-04 RDF::Redland::QueryResults(3pm)
Check Out this Related Man Page
RDF::Trine::Store::Redland(3pm) User Contributed Perl Documentation RDF::Trine::Store::Redland(3pm)NAME
RDF::Trine::Store::Redland - Redland-backed RDF store for RDF::Trine
VERSION
This document describes RDF::Trine::Store::Redland version 1.000
SYNOPSIS
use RDF::Trine::Store::Redland;
DESCRIPTION
RDF::Trine::Store::Redland provides an RDF::Trine::Store interface to the Redland RDF store.
METHODS
Beyond the methods documented below, this class inherits methods from the RDF::Trine::Store class.
"new ( $store )"
Returns a new storage object using the supplied RDF::Redland::Model object.
"new_with_config ( $hashref )"
Returns a new storage object configured with a hashref with certain keys as arguments.
The "storetype" key must be "Redland" for this backend.
The following keys may also be used:
"store_name"
The name of the storage factory (currently "hashes", "mysql", "memory", "file", "postgresql", "sqlite", "tstore", "uri" or
"virtuoso").
"name"
The name of the storage.
"options"
Any other options to be passed to RDF::Redland::Storage as a hashref.
"new_with_object ( $redland_model )"
Initialize the store with a RDF::Redland::Model object.
"temporary_store"
Returns a temporary (empty) triple store.
"get_statements ( $subject, $predicate, $object [, $context] )"
Returns a stream object of all statements matching the specified subject, predicate and objects. Any of the arguments may be undef to
match any value.
"get_contexts"
Returns an RDF::Trine::Iterator over the RDF::Trine::Node objects comprising the set of contexts of the stored quads.
"add_statement ( $statement [, $context] )"
Adds the specified $statement to the underlying model.
"remove_statement ( $statement [, $context])"
Removes the specified $statement from the underlying model.
"remove_statements ( $subject, $predicate, $object [, $context])"
Removes the specified $statement from the underlying model.
"count_statements ( $subject, $predicate, $object, $context )"
Returns a count of all the statements matching the specified subject, predicate, object, and context. Any of the arguments may be undef
to match any value.
"size"
Returns the number of statements in the store.
"supports ( [ $feature ] )"
If $feature is specified, returns true if the feature is supported by the store, false otherwise. If $feature is not specified, returns
a list of supported features.
BUGS
Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.
AUTHOR
Gregory Todd Williams "<gwilliams@cpan.org>"
COPYRIGHT
Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms
as Perl itself.
perl v5.14.2 2012-06-29 RDF::Trine::Store::Redland(3pm)