gets the value of the placeholdertypes property . this accessor method returns a reference to the live list , not a snapshot . therefore any modification you make to the returned list will be present inside the jaxb object . this is why there is not a set method for the placeholdertypes property . for example , to add a new item , do as follows : getplaceholdertypes . add newitem ; objects of the following type s are allowed in the list integer concode_field_sep Long feedId concode_elem_sep Function matchingFunction concode_elem_sep Long adGroupId concode_elem_sep List<Integer> placeholderTypes concode_elem_sep AdGroupFeedStatus status concode_field_sep Function getMatchingFunction concode_elem_sep void setFeedId concode_elem_sep Long getAdGroupId concode_elem_sep Long getFeedId concode_elem_sep AdGroupFeedStatus getStatus concode_elem_sep void setStatus concode_elem_sep void setAdGroupId concode_elem_sep void setMatchingFunction
List < Integer > function ( ) { if ( placeholderTypes == null ) { placeholderTypes = new ArrayList < Integer > ( ) ; } return this . placeholderTypes ; }