How to use

getDefaultValue

method

in

org.eclipse.emf.ecore.EStructuralFeature

private boolean useUnsetBit(EStructuralFeature feature) {
  // TODO non-unsettable boolean values can also be stored in these bits
  if (feature.isUnsettable()) {
    return true;
  } else {
    if (feature.isMany()) {
      return true;
    }
    if (feature.getDefaultValue() == null || (feature.getDefaultValue() != null && feature.getDefaultValue() == null)) {
      return true;
    }
  }
  return false;
}
 

private boolean useUnsetBit(EStructuralFeature feature) {
  // TODO non-unsettable boolean values can also be stored in these bits
  Object value = eGet(feature);
  if (feature.isUnsettable()) {
    if (!eIsSet(feature)) {
      return true;
    }
  } else {
    if (feature.isMany() && (value == null || ((List<?>)value).isEmpty())) {
      return true;
    }
    if (feature.getDefaultValue() == value || (feature.getDefaultValue() != null && feature.getDefaultValue().equals(value))) {
      return true;
    }
  }
  return false;
}

private boolean useUnsetBit(EStructuralFeature feature, IdEObject object) {
  // TODO non-unsettable boolean values can also be stored in these bits
  Object value = object.eGet(feature);
  if (feature.isUnsettable()) {
    if (!object.eIsSet(feature)) {
      return true;
    }
    if (feature.isMany() && ((List<?>)value).isEmpty()) {
      return true;
    }
  } else {
    if (feature.isMany() && ((List<?>)value).isEmpty()) {
      return true;
    }
    if (feature.getDefaultValue() == value || (feature.getDefaultValue() != null && feature.getDefaultValue().equals(value))) {
      return true;
    }
  }
  return false;
}

protected Object getDefaultValue()
{
 return feature.getDefaultValue();
}

} else if (feature.isMany()) {
} else if (feature.getDefaultValue() != null) {
  idEObject.setAttribute(feature, feature.getDefaultValue());

} else if (feature.isMany()) {
} else if (feature.getDefaultValue() != null) {
  idEObject.eSet(feature, feature.getDefaultValue());

@Override
protected Object getFeatureDefaultValue()
{
 Object feature = getFeature();
 if (feature instanceof EStructuralFeature)
 {
  return ((EStructuralFeature)feature).getDefaultValue();
 }
 return null;
}

@Override
protected Object getFeatureDefaultValue()
{
 Object feature = getFeature();
 if (feature instanceof EStructuralFeature)
 {
  return ((EStructuralFeature)feature).getDefaultValue();
 }
 return null;
}

public Object getMongoDefaultValue(EStructuralFeature feature)
{
 Object defaultValue = feature.getDefaultValue();
 return toMongo(defaultValue);
}

protected boolean shouldUnset(EStructuralFeature feature, Object value)
{
 if (feature.getUpperBound() != ETypedElement.UNSPECIFIED_MULTIPLICITY && !feature.isUnsettable())
 {
  Object defaultValue = feature.getDefaultValue();
  return defaultValue == null ? value == null : defaultValue.equals(value);
 }
 else
 {
  return false;
 }
}

protected boolean shouldUnset(EStructuralFeature feature, Object value)
{
 if (feature.getUpperBound() != ETypedElement.UNSPECIFIED_MULTIPLICITY && !feature.isUnsettable())
 {
  Object defaultValue = feature.getDefaultValue();
  return defaultValue == null ? value == null : defaultValue.equals(value);
 }
 else
 {
  return false;
 }
}

protected boolean defaultValueIsSerializeable(EStructuralFeature feature) {
  if (feature instanceof EAttribute) {
    if (feature.getEType() == EcorePackage.eINSTANCE.getEString() && feature.getDefaultValue() == null)
      return false;
    return true;
  }
  return false;
}

 @Override
 public Object getMongoDefaultValue(EStructuralFeature feature)
 {
  Object defaultValue = feature.getDefaultValue();
  EClassifier eType = feature.getEType();
  EFactory factory = eType.getEPackage().getEFactoryInstance();
  return factory.convertToString((EDataType)eType, defaultValue);
 }
});

 public void unset(InternalEObject eObject, EStructuralFeature feature)
 {
  Object[] settings = ((CDOObjectImpl)eObject).cdoBasicSettings();
  if (settings == null)
  {
   // Is already unset
   return;
  }
  int dynamicFeatureID = eDynamicFeatureID(eObject, feature);
  if (feature.isUnsettable())
  {
   settings[dynamicFeatureID] = null;
  }
  else
  {
   settings[dynamicFeatureID] = feature.getDefaultValue();
  }
 }
}

public boolean isSet(InternalEObject eObject, EStructuralFeature feature)
{
 if (!feature.isUnsettable())
 {
  if (feature.isMany())
  {
   @SuppressWarnings("unchecked")
   List<Object> list = (InternalEList<Object>)eObject.eGet(feature);
   return list != null && !list.isEmpty();
  }
  return !ObjectUtil.equals(eObject.eGet(feature), feature.getDefaultValue());
 }
 Object[] settings = ((CDOObjectImpl)eObject).eSettings;
 if (settings == null)
 {
  return false;
 }
 int transientIndex = getTransientFeatureIndex(eObject, feature);
 return settings[transientIndex] != null;
}

@Override
public void eDynamicSet(EStructuralFeature eFeature, Object newValue)
{
 if (eFeature instanceof EReference && ((EReference)eFeature).isContainer())
 {
  eSettingDelegate(eFeature).dynamicSet(this, null, -1, newValue);
 }
 else
 {
  if (!eFeature.isUnsettable())
  {
   Object defaultValue = eFeature.getDefaultValue();
   if (defaultValue == null ? newValue == null : defaultValue.equals(newValue))
   {
    featureMap.setting(eFeature).unset();
    return;
   }
  }
  featureMap.setting(eFeature).set(newValue);
 }
}

@Override
public void eDynamicSet(EStructuralFeature eFeature, Object newValue)
{
 if (eFeature instanceof EReference && ((EReference)eFeature).isContainer())
 {
  eSettingDelegate(eFeature).dynamicSet(this, null, -1, newValue);
 }
 else
 {
  if (!eFeature.isUnsettable())
  {
   Object defaultValue = eFeature.getDefaultValue();
   if (defaultValue == null ? newValue == null : defaultValue.equals(newValue))
   {
    featureMap.setting(eFeature).unset();
    return;
   }
  }
  featureMap.setting(eFeature).set(newValue);
 }
}

@Override
public void eDynamicSet(EStructuralFeature eFeature, Object newValue)
{
 if (eFeature instanceof EReference && ((EReference)eFeature).isContainer())
 {
  eSettingDelegate(eFeature).dynamicSet(this, null, -1, newValue);
 }
 else
 {
  if (!eFeature.isUnsettable())
  {
   Object defaultValue = eFeature.getDefaultValue();
   if (defaultValue == null ? newValue == null : defaultValue.equals(newValue))
   {
    featureMap.setting(eFeature).unset();
    return;
   }
  }
  featureMap.setting(eFeature).set(newValue);
 }
}

@Override
protected Object getDefaultValue()
{
 Object defaultValue = getFeature().getDefaultValue();
 if (defaultValue == null)
 {
  return null;
 }
 EFactory factory = getFeature().getEType().getEPackage().getEFactoryInstance();
 return factory.convertToString((EDataType)getFeature().getEType(), defaultValue);
}

public boolean isSet(InternalEObject eObject, EStructuralFeature feature)
{
 if (!feature.isUnsettable())
 {
  if (feature.isMany())
  {
   @SuppressWarnings("unchecked")
   InternalEList<Object> list = (InternalEList<Object>)eObject.eGet(feature);
   return list != null && !list.isEmpty();
  }
  return !ObjectUtil.equals(eObject.eGet(feature), feature.getDefaultValue());
 }
 Object[] settings = ((CDOObjectImpl)eObject).cdoBasicSettings();
 if (settings == null)
 {
  return false;
 }
 int dynamicFeatureID = eDynamicFeatureID(eObject, feature);
 return settings[dynamicFeatureID] != null;
}