code: @Override
  	public Object eGet(int featureID, boolean resolve, boolean coreType)
  	{
  		switch (featureID)
  		{
  			case XbasePackage.XINSTANCE_OF_EXPRESSION__TYPE:
  				return getType();
  			case XbasePackage.XINSTANCE_OF_EXPRESSION__EXPRESSION:
  				return getExpression();
  		}
  		return super.eGet(featureID, resolve, coreType);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated