Examples of spark.api.BooleanResult

spark.api.BooleanResult

{@link Result} interface to wrap the result of executing a SPARQL ASK query so that it canbe returned from a call to {@link Command#execute()}. An ASK query takes a query pattern and tests whether a solution for the pattern exists in the dataset. It always returns a single boolean result: true if a solution exists for the pattern, or false if no solution is known to exist.

This interface is designed to be returned from the {@link Command#execute()} method forexecuting general SPARQL commands. If you have prior knowledge that a command is an ASK query, then you can access the boolean result directy by calling the {@link Command#executeAsk()}method.

@author Alex Hall @created Aug 9, 2011

    String fn = TEST_DIR + testName + FILE_EXT;
    return (BooleanResult) XMLResultsParser.parseResults(null, new FileInputStream(fn), null);
  }


  static void booleanTest(String testName, boolean value, String... metadata) throws Exception {
    BooleanResult r = getTestData(testName);
    assertNotNull(r);
    
    assertEquals(value, r.getResult());
    
    assertTrue(r instanceof ProtocolResult);
    List<String> md = ((ProtocolResult)r).getMetadata();
    assertEquals(Arrays.asList(metadata), md);
  }

Examples of spark.api.BooleanResult

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