Diogo/Andy, Thanks for point out the solution.
Query is something like below mentioned and as suggested by Diogo I had written a transformer implementation to retrieve BasicPattern. Another useful link was https://github.com/apache/jena/blob/trunk/jena-arq/src-examples/arq/examples/engine/MyQueryEngine.java: (?pinUri rdf:type <http://example.com/ontology#post>) (?pinUri < http://example.com/ontology#createdDate> ?createdDate) (?pinUri < http://example.com/ontology#belongsTo> ?userUri) (?pinUri rdf:type ?pinType) (?pinUri <http://example.com/ontology#publicKey> ?pinKey) (?pinUri <http://example.com/ontology#source> ?mediaUri) (?pinUri < http://example.com/ontology#title> ?mediaTitle) (?pinUri < http://example.com/ontology#tag> ?boardUri) (?boardUri < http://example.com/ontology#label> ?boardLabel) (?userUri < http://example.com/ontology#profileName> ?profileName) (?userUri < http://example.com/ontology#publicKey> ?userKey) (?boardUri <http://example.com/ontology#description> ?boardDescription) (?userUri <http://example.com/ontology#profileImage> ?profileImage) (?pinUri <http://example.com/ontology#description> ?mediaDescription) String query = "select ?pinKey ?pinType ?mediaUri ?mediaTitle ?mediaDescription ?boardLabel ?boardDescription ?profileName ?profileImage ?userKey" + " where " + " {" + " " + " ?pinUri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://example.com/ontology#post> ." + " ?pinUri <http://example.com/ontology#createdDate> ?createdDate ." + " ?pinUri <http://example.com/ontology#belongsTo> ?userUri ." + " ?pinUri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ?pinType ." + " ?pinUri <http://example.com/ontology#publicKey> ?pinKey ." + " ?pinUri <http://example.com/ontology#source> ?mediaUri ." + " ?pinUri <http://example.com/ontology#title> ?mediaTitle ." + " ?pinUri <http://example.com/ontology#tag> ?boardUri ."+ " ?boardUri <http://example.com/ontology#label> ?boardLabel ." + " ?userUri <http://example.com/ontology#profileName> ?profileName ." + " ?userUri <http://example.com/ontology#publicKey> ?userKey ." + " OPTIONAL " + " {" + " ?boardUri <http://example.com/ontology#description> ?boardDescription ." + " ?userUri <http://example.com/ontology#profileImage> ?profileImage ." + " ?pinUri <http://example.com/ontology#description> ?mediaDescription ." + " }" + " " + " filter(str(?pinType) != \" http://example.com/ontology#post\";)" + " }" + " ORDER BY DESC(?createdDate)" + " LIMIT 10 " + " OFFSET 0"; Thanks Depanker Sharma On Sun, Apr 14, 2013 at 10:43 PM, Andy Seaborne <[email protected]> wrote: > Depanker, > > if your query is a string or a Query object: > > Query query = QueryFactory.create(**querystring) ; > Op op = Algebra.compile(query) ; > > and look in the Op object (see the link from Diogo. If it's a simple > query, like > > SELECT * { > ?s ?p ?o > } > > the op will be a OpBGP and you can get the BGP. For more complicated > queries, you'll need to walk the op in some way. > > Andy > > > > > On 14/04/13 13:38, Diogo FC Patrao wrote: > >> Hi Depanker >> >> Try the Transformer class; here is some examples: >> >> http://jena.apache.org/**documentation/query/** >> manipulating_sparql_using_arq.**html<http://jena.apache.org/documentation/query/manipulating_sparql_using_arq.html> >> >> >> >> -- >> diogo patrão >> >> >> >> >> On Sun, Apr 14, 2013 at 3:01 AM, illusionz <[email protected]> >> wrote: >> >> Hi, >>> >>> I am currently creating an app that will extract BGP and based on the >>> BGP's >>> load the graphs from a custom data source. >>> >>> Kindly help me with a code snipplet that would return list of BGP's >>> from a >>> SPARQL query so that I can traverse and load the graphs matching those >>> patterns. >>> >>> Regards, >>> Depanker Sharna >>> >>> >> >
