Examples of org.camunda.bpm.engine.runtime.ProcessInstanceQuery

org.camunda.bpm.engine.runtime.ProcessInstanceQuery
Allows programmatic querying of {@link ProcessInstance}s. @author Joram Barrez @author Frederik Heremans @author Falko Menge

    vars = new HashMap<String, Object>();
    vars.put("doubleVar", 55555.5555);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);


    // Query on single double variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("doubleVar", 12345.6789);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());


    // Query on two double variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("doubleVar", 12345.6789).variableValueEquals("doubleVar2", 9876.54321);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());


    // Query with unexisting variable value
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("doubleVar", 9999.99).singleResult();

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    vars = new HashMap<String, Object>();
    vars.put("integerVar", 55555);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);


    // Query on single integer variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("integerVar", 12345);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());


    // Query on two integer variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("integerVar", 12345).variableValueEquals("integerVar2", 67890);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());


    // Query with unexisting variable value
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("integerVar", 9999).singleResult();

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    vars = new HashMap<String, Object>();
    vars.put("shortVar", (short)5555);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);


    // Query on single short variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("shortVar", shortVar);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());


    // Query on two short variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("shortVar", shortVar).variableValueEquals("shortVar2", shortVar2);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());


    // Query with unexisting variable value
    short unexistingValue = (short)9999;

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    Calendar oneYearAgo = Calendar.getInstance();
    oneYearAgo.add(Calendar.YEAR, -1);


    // Query on single short variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("dateVar", date1);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());


    // Query on two short variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("dateVar", date1).variableValueEquals("dateVar2", date2);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());


    // Query with unexisting variable value
    Date unexistingDate = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss").parse("01/01/1989 12:00:00");

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    variables.put("dateVar", new Date());
    variables.put("booleanVar", true);
    variables.put("nullVar", null);
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", variables);


    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery()
      .variableValueEquals("longVar", null)
      .variableValueEquals("shortVar", null)
      .variableValueEquals("integerVar", null)
      .variableValueEquals("stringVar", null)
      .variableValueEquals("booleanVar", null)
      .variableValueEquals("dateVar", null);


    ProcessInstanceQuery notQuery = runtimeService.createProcessInstanceQuery()
    .variableValueNotEquals("longVar", null)
    .variableValueNotEquals("shortVar", null)
    .variableValueNotEquals("integerVar", null)
    .variableValueNotEquals("stringVar", null)
    .variableValueNotEquals("booleanVar", null)
    .variableValueNotEquals("dateVar", null);


    assertNull(query.singleResult());
    assertNotNull(notQuery.singleResult());


    // Set all existing variables values to null
    runtimeService.setVariable(processInstance.getId(), "longVar", null);
    runtimeService.setVariable(processInstance.getId(), "shortVar", null);
    runtimeService.setVariable(processInstance.getId(), "integerVar", null);
    runtimeService.setVariable(processInstance.getId(), "stringVar", null);
    runtimeService.setVariable(processInstance.getId(), "dateVar", null);
    runtimeService.setVariable(processInstance.getId(), "nullVar", null);
    runtimeService.setVariable(processInstance.getId(), "booleanVar", null);


    Execution queryResult = query.singleResult();
    assertNotNull(queryResult);
    assertEquals(processInstance.getId(), queryResult.getId());
    assertNull(notQuery.singleResult());
  }

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    vars = new HashMap<String, Object>();
    vars.put("nullVarByte", "testbytes".getBytes());
    ProcessInstance processInstance5 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);


    // Query on null value, should return one value
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("nullVar", null);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(1, processInstances.size());
    Assert.assertEquals(processInstance1.getId(), processInstances.get(0).getId());


    // Test NOT_EQUALS null

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    vars.put("booleanVar", true);
    vars.put("shortVar", (short) 123);


    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);


    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery()
      .variableValueEquals("nullVar", null)
      .variableValueEquals("stringVar", "string")
      .variableValueEquals("longVar", 10L)
      .variableValueEquals("doubleVar", 1.2)
      .variableValueEquals("integerVar", 1234)
      .variableValueEquals("booleanVar", true)
      .variableValueEquals("shortVar", (short) 123);


    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(1, processInstances.size());
    Assert.assertEquals(processInstance.getId(), processInstances.get(0).getId());


    runtimeService.deleteProcessInstance(processInstance.getId(), "test");

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    Set<String> processInstanceIds = new HashSet<String>(this.processInstanceIds);


    // start an instance that will not be part of the query
    runtimeService.startProcessInstanceByKey("oneTaskProcess2", "2");


    ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery().processInstanceIds(processInstanceIds);
    assertEquals(5, processInstanceQuery.count());


    List<ProcessInstance> processInstances = processInstanceQuery.list();
    assertNotNull(processInstances);
    assertEquals(5, processInstances.size());


    for (ProcessInstance processInstance : processInstances) {
      assertTrue(processInstanceIds.contains(processInstance.getId()));

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      assertTextPresent("Set of process instance ids is null", re.getMessage());
    }
  }


  public void testQueryByActive() throws Exception {
    ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery();


    assertEquals(5, processInstanceQuery.active().count());


    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess");


    assertEquals(5, processInstanceQuery.active().count());


    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess", true, null);


    assertEquals(1, processInstanceQuery.active().count());


    // db cleanup
    TestHelper.clearOpLog(processEngineConfiguration);
  }

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    // db cleanup
    TestHelper.clearOpLog(processEngineConfiguration);
  }


  public void testQueryBySuspeded() throws Exception {
    ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery();


    assertEquals(0, processInstanceQuery.suspended().count());


    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess");


    assertEquals(0, processInstanceQuery.suspended().count());


    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess", true, null);


    assertEquals(4, processInstanceQuery.suspended().count());


    // db cleanup
    TestHelper.clearOpLog(processEngineConfiguration);
}

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