Examples of QueryEngine

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
    }
    else query = args[1];
   
    com.hp.hpl.jena.query.Query q = QueryFactory.create(query);
   
    QueryEngine qe;
   
    if (config.contains(null, RDF.type, DbMap.Map))
    {
      qe = new SQLQueryEngine(q, config);
    }
    else
    {
      qe = new LdapQueryEngine(q, config);
    }
   
    qe.setDataset(DatasetFactory.create());
   
    ResultSet results = qe.execSelect();
   
    ResultSetFormatter.out(System.out, results);
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
    doQuery(req, resp);
  }

  public void doQuery(HttpServletRequest req, HttpServletResponse resp)
  {
    QueryEngine qe = null;

    try
    {
      String theQuery = req.getParameter("query");
      String stylesheet = tryParameter(req, "stylesheet", "xsl", "xslt",
          "xslt-uri");

      log.info("Query is:\n" + theQuery);
      log.info("Stylesheet: " + stylesheet);

      Query query = QueryFactory.create(theQuery);

      if (type == LDAP)
        qe = new LdapQueryEngine(query, config);
      else
        qe = new SQLQueryEngine(query, config);

      qe.setDataset(DatasetFactory.create());

      ResultSet results = qe.execSelect();
      resp.setHeader("Content-Type", "application/xml");
      ResultSetFormatter.outputAsXML(resp.getOutputStream(), results,
          stylesheet);
    }
    catch (Throwable e)
    {
      log.error("Error: ", e);
      resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }
    finally
    {
      if (qe != null)
        qe.close();
    }

  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

57
58
59
60
61
62
63
64
65
 
  public QueryEngine prepareQuery(String queryS) throws SQLException, ConfigException
  {
    Model config = ExtractConfig.process("jdbc:hsqldb:mem:test", "org.hsqldb.jdbcDriver", "urn:ex:", "sa", "", new String[]{"TABLE1", "TABLE2"}, conn.getMetaData());
    Query query = QueryFactory.create(queryS);
    QueryEngine qe = new SQLQueryEngine(query, config);
    qe.setDataset(DatasetFactory.create());
    return qe;
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

78
79
80
81
82
83
84
85
86
87
88
    config.write(System.out, "RDF/XML-ABBREV");
  }
 
  public void testBasicAskQuery() throws SQLException, ConfigException
  {
    QueryEngine qe = prepareQuery("ASK { _:s <urn:ex:TABLE1_FIELD1> 1 }");
   
    boolean res = qe.execAsk();
   
    assertTrue("DB contains triple", res);
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

87
88
89
90
91
92
93
94
95
96
97
98
    assertTrue("DB contains triple", res);
  }
 
  public void testBasicSelectQuery() throws SQLException, ConfigException
  {
    QueryEngine qe = prepareQuery("SELECT ?s ?val1 WHERE { ?s <urn:ex:TABLE1_FIELD1> ?val1 }");
   
    ResultSet res = qe.execSelect();
   
    assertTrue("Query has results", res.hasNext());
    ResultSetFormatter.out(System.out, res);
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

97
98
99
100
101
102
103
104
105
106
107
108
    ResultSetFormatter.out(System.out, res);
  }
 
  public void testJoinQuery() throws SQLException, ConfigException
  {
    QueryEngine qe = prepareQuery("SELECT ?val1 ?val2 ?val3 WHERE { ?s1 <urn:ex:TABLE1_FIELD1> ?val1 ; <urn:ex:TABLE1_FIELD2> ?val2 . ?s2 <urn:ex:TABLE2_FIELD1> ?val1 ; <urn:ex:TABLE2_FIELD2> ?val3 .}");
   
    ResultSet res = qe.execSelect();
   
    assertTrue("Query has results", res.hasNext());
    ResultSetFormatter.out(System.out, res);
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

107
108
109
110
111
112
113
114
115
116
117
    ResultSetFormatter.out(System.out, res);
  }
 
  public void testOptionalAskQuery() throws SQLException, ConfigException
  {
    QueryEngine qe = prepareQuery("ASK { _:s <urn:ex:TABLE1_FIELD1> 1 . OPTIONAL { _:s <urn:ex:TABLE1_FIELD2> 'not there'} }");
   
    boolean res = qe.execAsk();
   
    assertTrue("Matched optional", res);
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

116
117
118
119
120
121
122
123
124
125
126
127
128
    assertTrue("Matched optional", res);
  }
 
  public void testOptionalSelectQuerySameSubject() throws SQLException, ConfigException
  {
    QueryEngine qe = prepareQuery("SELECT * WHERE { ?s <urn:ex:TABLE1_FIELD1> ?val1 . OPTIONAL { ?s <urn:ex:TABLE1_FIELD2> ?val2} }");
   
    ResultSet res = qe.execSelect();
   
    assertTrue("Optional subject join has result", res.hasNext());
   
    // No more than two results!
    res.next(); res.next();
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
    //ResultSetFormatter.out(System.out, res);
  }
 
  public void testTypeSelectQuery() throws SQLException, ConfigException
  {
    QueryEngine qe = prepareQuery("ASK WHERE { ?s a <urn:ex:TABLE1> ; <urn:ex:TABLE1_FIELD1> ?val1 . }");
   
    boolean result = qe.execAsk();
   
    assertTrue("No problem with type query", result);
   
    qe = prepareQuery("ASK WHERE { ?s a <urn:ex:TABLE2> ; <urn:ex:TABLE1_FIELD1> ?val1 . }");
   
    result = qe.execAsk();
   
    assertFalse("Type mismatch caused no match", result);   
  }
View Full Code Here

Examples of com.hp.hpl.jena.query.engine1.QueryEngine

145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
    assertFalse("Type mismatch caused no match", result);   
  }
 
  public void testRoundTrip() throws SQLException, ConfigException
  {
    QueryEngine qe;
   
    qe = prepareQuery("SELECT ?subj WHERE { ?subj <urn:ex:TABLE1_FIELD2> 'C' }");
   
    ResultSet res = qe.execSelect();
   
    assertTrue("I have results", res.hasNext());
   
    QuerySolution soln = res.nextSolution();
   
    RDFNode subj = soln.get("subj");
       
    assertEquals("Result is correct", "urn:ex:TABLE1;FIELD1=2;FIELD3=3", ((Resource) subj).getURI());
   
    qe = prepareQuery("ASK WHERE {  <urn:ex:TABLE1;FIELD1=2;FIELD3=3> <urn:ex:TABLE1_FIELD2> 'C' } ");
   
    boolean rb = qe.execAsk();
   
    assertTrue("Correct result for round trip", rb);
  }
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.