code: public EList<XExpression> getElements()
  	{
  		if (elements == null)
  		{
  			elements = new EObjectContainmentEList<XExpression>(XExpression.class, this, XbasePackage.XCOLLECTION_LITERAL__ELEMENTS);
  		}
  		return elements;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated