import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
/**
 * @return a HashMap of answers entered by the user for this set of widgets
 */
public LinkedHashMap<FormIndex, IAnswerData> getAnswers() {
    LinkedHashMap<FormIndex, IAnswerData> answers = new LinkedHashMap<FormIndex, IAnswerData>();
    Iterator<QuestionWidget> i = widgets.iterator();
    while (i.hasNext()) {
        /*
         * The FormEntryPrompt has the FormIndex, which is where the answer gets stored. The
         * QuestionWidget has the answer the user has entered.
         */
        QuestionWidget q = i.next();
        FormEntryPrompt p = q.getPrompt();
        answers.put(p.getIndex(), q.getAnswer());
    }

    return answers;
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
/**
 * Attempt to save the answer(s) in the current screen to into the data
 * model.
 *
 * @param evaluateConstraints
 * @return false if any error occurs while saving (constraint violated,
 *         etc...), true otherwise.
 */
private boolean saveAnswersForCurrentScreen(boolean evaluateConstraints) {
	FormController formController = Collect.getInstance()
			.getFormController();
	// only try to save if the current event is a question or a field-list
	// group
	if (formController.currentPromptIsQuestion()) {
		LinkedHashMap<FormIndex, IAnswerData> answers = ((ODKView) mCurrentView)
				.getAnswers();
           try {
               FailedConstraint constraint = formController.saveAllScreenAnswers(answers, evaluateConstraints);
               if (constraint != null) {
                   createConstraintToast(constraint.index, constraint.status);
                   return false;
               }
           } catch (JavaRosaException e) {
               Log.e(t, e.getMessage(), e);
               createErrorDialog(e.getCause().getMessage(), DO_NOT_EXIT);
               return false;
           }
	}
	return true;
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
    List<Selection> vc = new ArrayList<Selection>();
    for (int i = 0; i < mCheckboxes.size(); i++) {
    	CheckBox c = mCheckboxes.get(i);
        if (c.isChecked()) {
            vc.add(new Selection(mItems.get(i)));
        }
    }

    if (vc.size() == 0) {
        return null;
    } else {
        return new SelectMultiData(vc);
    }

}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
public void testGeoShapeSupportForEnclosedArea() throws Exception {
   // Read the form definition
String FORM_NAME = (new File(PathConst.getTestResourcePath(), "area.xml")).getAbsolutePath();
InputStream is = null;
FormDef formDef = null;
is = new FileInputStream(new File(FORM_NAME));
   formDef = XFormUtils.getFormFromInputStream(is);

   // trigger all calculations
   formDef.initialize(true, new InstanceInitializationFactory());

   // get the calculated area
   IAnswerData areaResult = formDef.getMainInstance().getRoot().getChildAt(1).getValue();

   assertTrue((int) Math.rint((Double) areaResult.getValue()) == 151452);
 }
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
	clearFocus();
    List<Selection> vc = new ArrayList<Selection>();
    for (int i = 0; i < mItems.size(); i++) {
        if (selections[i]) {
            SelectChoice sc = mItems.get(i);
            vc.add(new Selection(sc));
        }
    }
    if (vc.size() == 0) {
        return null;
    } else {
        return new SelectMultiData(vc);
    }

}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
    List<Selection> vc = new ArrayList<Selection>();
    for ( int i = 0; i < mCheckboxes.size() ; ++i ) {
    	CheckBox c = mCheckboxes.get(i);
    	if ( c.isChecked() ) {
    		vc.add(new Selection(mItems.get(i)));
    	}
    }

    if (vc.size() == 0) {
        return null;
    } else {
        return new SelectMultiData(vc);
    }

}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
    List<Selection> vc = new ArrayList<Selection>();
    for (int i = 0; i < mItems.size(); i++) {
        if (selected[i]) {
            SelectChoice sc = mItems.get(i);
            vc.add(new Selection(sc));
        }
    }

    if (vc.size() == 0) {
        return null;
    } else {
        return new SelectMultiData(vc);
    }
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
	clearFocus();
	String response = autocomplete.getText().toString();
    for (SelectChoice sc : mItems) {
        if (response.equals(mPrompt.getSelectChoiceText(sc))) {
            return new SelectOneData(new Selection(sc));
        }
    }

    // If the user has typed text into the autocomplete box that doesn't match any answer, warn
    // them that their
    // solution didn't count.
    if (!response.equals("")) {
        Toast.makeText(getContext(),
            "Warning: \"" + response + "\" does not match any answers. No answer recorded.",
            Toast.LENGTH_LONG).show();
    }
    return null;
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public String toString() {
  if (getAffectedRef() == null) {
    return "";
  } else {
    StringBuilder sb = new StringBuilder();
    String refStr = getAffectedRef().toShortString();
    sb.append(refStr);
    if (value != null) {
      sb.append(" (");
      if (value instanceof IAnswerData) {
        sb.append(((IAnswerData) value).getDisplayText());
      } else {
        sb.append(String.valueOf(value));
      }
      sb.append(")");
    }
    return sb.toString();
  }
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
public boolean evaluateConstraint(TreeReference ref, IAnswerData data) {
   if (data == null) {
      return true;
   }

   TreeElement node = mainInstance.resolveReference(ref);
   Constraint c = node.getConstraint();

   if (c == null) {
      return true;
   }
   EvaluationContext ec = new EvaluationContext(exprEvalContext, ref);
   ec.isConstraint = true;
   ec.candidateValue = data;

   boolean result = c.constraint.eval(mainInstance, ec);

   getEventNotifier().publishEvent(new Event("Constraint", new EvaluationResult(ref, new Boolean(result))));

   return result;
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
/**
 * Preload the Data Model with the preload values that are enumerated in the
 * data bindings.
 */
public void preloadInstance(TreeElement node) {
   // if (node.isLeaf()) {
   IAnswerData preload = null;
   if (node.getPreloadHandler() != null) {
      preload = preloader.getQuestionPreload(node.getPreloadHandler(), node.getPreloadParams());
   }
   if (preload != null) { // what if we want to wipe out a value in the
      // instance?
      node.setAnswer(preload);
   }
   // } else {
   if (!node.isLeaf()) {
      for (int i = 0; i < node.getNumChildren(); i++) {
         TreeElement child = node.getChildAt(i);
         if (child.getMult() != TreeReference.INDEX_TEMPLATE)
            // don't preload templates; new repeats are preloaded as they're
            // created
            preloadInstance(child);
      }
   }
   // }
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
/**
 * Note: This method is a hack to fix the problem that we don't know what
 * data type we're using when we have a preloader. That should get fixed, 
 * and this method should be removed.
 * @param o
 * @return
 */
public static IAnswerData wrapIndeterminedObject(Object o) {
	if(o == null) {
		return null;
	}
	
	//TODO: Replace this all with an uncast data
	if(o instanceof String) {
		return new StringData((String)o);
	} else if(o instanceof Date) {
		return new DateData((Date)o);
	} else if (o instanceof Integer) {
		return new IntegerData((Integer)o);
	} else if (o instanceof Long) {
		return new LongData((Long)o);
	} else if (o instanceof Double) {
		return new DecimalData((Double)o);
	} else if(o instanceof List) {
		return new SelectMultiData((List<Selection>)o);
	} else if(o instanceof IAnswerData) {
		return (IAnswerData)o;
	}
	return new StringData(o.toString());
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
public IDataPointer[] retrieveExternalDataPointer(IAnswerData data) {
     for (IAnswerDataSerializer serializer : additionalSerializers) {
		Boolean contains = serializer.containsExternalData(data);
		if(contains != null) {
			return serializer.retrieveExternalDataPointer(data);
		}
	}
	if( data instanceof PointerAnswerData) {
		IDataPointer[] pointer = new IDataPointer[1];
		pointer[0] = (IDataPointer)((PointerAnswerData)data).getValue();
		return pointer;
	}
	else if (data instanceof MultiPointerAnswerData ) {
		return (IDataPointer[])((MultiPointerAnswerData)data).getValue();
	}
	//This shouldn't have been called.
	return null;
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
/**
 * Attempts to save an answer to the specified index.
 *
 * @param answer
 * @param index
 * @param evaluateConstraints
 * @return status as determined in FormEntryController
 */
public int saveAnswer(IAnswerData answer, FormIndex index,
		boolean evaluateConstraints) throws JavaRosaException {
	FormController formController = Collect.getInstance()
			.getFormController();
	if (evaluateConstraints) {
		return formController.answerQuestion(index, answer);
	} else {
		formController.saveAnswer(index, answer);
		return FormEntryController.ANSWER_OK;
	}
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
    int i = getCheckedId();
    if (i == -1) {
        return null;
    } else {
        SelectChoice sc = mItems.get(i);
        return new SelectOneData(new Selection(sc));
    }
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
private Double getDoubleAnswerValue() {
	IAnswerData dataHolder = mPrompt.getAnswerValue();
       Double d = null;
       if (dataHolder != null) {
       	Object dataValue = dataHolder.getValue();
       	if ( dataValue != null ) {
       		if (dataValue instanceof Integer){
                d =  Double.valueOf(((Integer)dataValue).intValue());
            } else {
                d =  (Double) dataValue;
            }
       	}
       }
       return d;
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
	clearFocus();
    String s = mAnswer.getText().toString();
    if (s == null || s.equals("")) {
        return null;
    } else {
        try {
            return new DecimalData(Double.valueOf(s).doubleValue());
        } catch (Exception NumberFormatException) {
            return null;
        }
    }
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
    if (mAnswer == null) {
        return null;
    } else {
        return new StringData(mAnswer);
    }
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
@Override
public IAnswerData getAnswer() {
	String s = mStringAnswer.getText().toString();
	if (s == null || s.equals("")) {
		return null;
	} else {
		return new StringData(s);
	}
}
 

import org.javarosa.core.model.data.IAnswerData; //导入依赖的package包/类
private Integer getIntegerAnswerValue() {
	IAnswerData dataHolder = mPrompt.getAnswerValue();
	Integer d = null;
       if (dataHolder != null) {
       	Object dataValue = dataHolder.getValue();
       	if ( dataValue != null ) {
       		if (dataValue instanceof Double){
                d =  Integer.valueOf(((Double) dataValue).intValue());
            } else {
                d =  (Integer)dataValue;
            }
       	}
       }
       return d;
}