Package org.camunda.bpm.engine.runtime

Examples of org.camunda.bpm.engine.runtime.VariableInstanceQuery.singleResult()

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    VariableInstanceQuery query = runtimeService.createVariableInstanceQuery();

    query
      .caseInstanceIdIn(instance.getId());

    VariableInstance result = query.singleResult();

    assertNotNull(result);

    assertEquals("aVariableName", result.getName());
    assertEquals("abc", result.getValue());
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    VariableInstanceQuery query = runtimeService.createVariableInstanceQuery();

    query
      .activityInstanceIdIn(instance.getId());

    VariableInstance result = query.singleResult();

    assertNotNull(result);

    assertEquals("aVariableName", result.getName());
    assertEquals("abc", result.getValue());
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    variables.put("aVariable", 1234);
    ProcessInstance pi = runtimeService.startProcessInstanceByKey("taskAssigneeProcess", variables);

    VariableInstanceQuery query = runtimeService.createVariableInstanceQuery().variableName("aVariable");

    VariableInstance variable = query.singleResult();
    assertEquals(ValueType.INTEGER.getName(), variable.getTypeName());

    runtimeService.setVariable(pi.getId(), "aVariable", 1234L);
    variable = query.singleResult();
    assertEquals(ValueType.LONG.getName(), variable.getTypeName());
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    VariableInstance variable = query.singleResult();
    assertEquals(ValueType.INTEGER.getName(), variable.getTypeName());

    runtimeService.setVariable(pi.getId(), "aVariable", 1234L);
    variable = query.singleResult();
    assertEquals(ValueType.LONG.getName(), variable.getTypeName());

    runtimeService.setVariable(pi.getId(), "aVariable", (short)1234);
    variable = query.singleResult();
    assertEquals(ValueType.SHORT.getName(), variable.getTypeName());
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    runtimeService.setVariable(pi.getId(), "aVariable", 1234L);
    variable = query.singleResult();
    assertEquals(ValueType.LONG.getName(), variable.getTypeName());

    runtimeService.setVariable(pi.getId(), "aVariable", (short)1234);
    variable = query.singleResult();
    assertEquals(ValueType.SHORT.getName(), variable.getTypeName());
  }

  @Deployment(resources = {"org/camunda/bpm/engine/test/examples/variables/VariablesTest.testBasicVariableOperations.bpmn20.xml"})
  public void testChangeTypeFromSerializableUsingApi() {
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    variables.put("aVariable", new SerializableVariable("foo"));
    ProcessInstance pi = runtimeService.startProcessInstanceByKey("taskAssigneeProcess", variables);

    VariableInstanceQuery query = runtimeService.createVariableInstanceQuery().variableName("aVariable");

    VariableInstance variable = query.singleResult();
    assertEquals(ValueType.OBJECT.getName(), variable.getTypeName());

    runtimeService.setVariable(pi.getId(), "aVariable", null);
    variable = query.singleResult();
    assertEquals(ValueType.NULL.getName(), variable.getTypeName());
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    VariableInstance variable = query.singleResult();
    assertEquals(ValueType.OBJECT.getName(), variable.getTypeName());

    runtimeService.setVariable(pi.getId(), "aVariable", null);
    variable = query.singleResult();
    assertEquals(ValueType.NULL.getName(), variable.getTypeName());

  }

  @Deployment
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    variables.put("aVariable", "test");
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("taskAssigneeProcess", variables);

    VariableInstanceQuery query = runtimeService.createVariableInstanceQuery().variableName("aVariable");

    VariableInstance variable = query.singleResult();
    assertEquals(ValueType.STRING.getName(), variable.getTypeName());

    runtimeService.setVariable(processInstance.getId(), "aVariable", new SerializableVariable("foo"));
    variable = query.singleResult();
    assertEquals(ValueType.OBJECT.getName(), variable.getTypeName());
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    VariableInstance variable = query.singleResult();
    assertEquals(ValueType.STRING.getName(), variable.getTypeName());

    runtimeService.setVariable(processInstance.getId(), "aVariable", new SerializableVariable("foo"));
    variable = query.singleResult();
    assertEquals(ValueType.OBJECT.getName(), variable.getTypeName());

  }

  @Deployment
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