この例では2つの書籍に関するデータを挿入し、そのタイトルをすべて大文字で表示してタイトル文字列の長さも表示します。

import com.hp.hpl.jena.query.*;
import com.hp.hpl.jena.rdf.model.Model;
import oracle.rdf.kv.client.jena.*;
import com.hp.hpl.jena.update.*;

public class Example13 
{
  
  public static void main(String[] args) throws Exception
  {
    
String szStoreName  = args[0];
String szHostName   = args[1];
String szHostPort   = args[2];
String szGraphName  = args[3];
    
// Create Oracle NoSQL connection    
OracleNoSqlConnection conn 
       = OracleNoSqlConnection.createInstance(szStoreName,
                                              szHostName, 
                                              szHostPort);
    
// Create model from named graph
Model model = 
      OracleModelNoSql.createOracleModelNoSql(szGraphName, conn);
    
// Clear model
model.removeAll();
    
String insertString =
" PREFIX dc: <http://purl.org/dc/elements/1.1/> "               +
" INSERT DATA "                                                 +
" { <http://example/book3> dc:title \"A new book\" ; "          +
"                          dc:creator \"A.N.Other\" . "         +
"   <http://example/book4> dc:title \"Semantic Web Rocks\" ; "  +
"                          dc:creator \"TB\" . "                +
" } ";
    
System.out.println("Execute insert action " + insertString);
UpdateAction.parseExecute(insertString, model);
    
    
String szQuery 
= "PREFIX dc: <http://purl.org/dc/elements/1.1/> "          +
"PREFIX fn: <http://www.w3.org/2005/xpath-functions#> "   +
" SELECT ?subject (fn:upper-case(?object) as ?object1) "  +
"        (fn:string-length(?object) as ?strlen) "         +
" WHERE { ?subject dc:title ?object } ";
    
System.out.println("Execute query " + szQuery);
    
Query query = QueryFactory.create(szQuery, Syntax.syntaxARQ);
QueryExecution qexec = QueryExecutionFactory.create(query, model);
    
try {
      ResultSet results = qexec.execSelect();
      ResultSetFormatter.out(System.out, results, query);
    }
    
finally {
      qexec.close();
    }
    
model.close();   
conn.dispose();   
  }
}

この例をコンパイルして実行するコマンドと、想定されるJavaコマンドの出力は次のとおりです。

javac -classpath ./:./jena-core-2.7.4.jar:./jena-arq-2.9.4.jar: \
./sdordfnosqlclient.jar:./kvclient.jar:./xercesImpl-2.10.0.jar: \
./slf4j-api-1.6.4.jar:./slf4j-log4j12-1.6.4.jar:./log4j/1.2.16.jar: \
./jena-iri-0.9.4.jar:./xml-apis-1.4.01.jar Example13.java

javac -classpath ./:./jena-core-2.7.4.jar:./jena-arq-2.9.4.jar: \
./sdordfnosqlclient.jar:./kvclient.jar:./xercesImpl-2.10.0.jar: \
./slf4j-api-1.6.4.jar:./slf4j-log4j12-1.6.4.jar:./log4j/1.2.16.jar: \
./jena-iri-0.9.4.jar:./xml-apis-1.4.01.jar Example13 <store_name> \
<host_name> <host_port> <graph_name>

Execute query PREFIX dc: <http://purl.org/dc/elements/1.1/> 
PREFIX fn: <http://www.w3.org/2005/xpath-functions#>  
SELECT ?subject (fn:upper-case(?object) as ?object1)  
(fn:string-length(?object) as ?strlen)  
WHERE { ?subject dc:title ?object }
----------------------------------------------------------
| subject                | object1              | strlen |
==========================================================
| <http://example/book4> | "SEMANTIC WEB ROCKS" | 18     |
| <http://example/book3> | "A NEW BOOK"         | 10     |
----------------------------------------------------------