public void addMemberNodes(Collection<GraphNode> result){
  result.addAll(getChildrenNodes());
  for (  CollapseData data : getChildrenCollapse()) {
    data.addMemberNodes(result);
  }
}

public void addMemberNodes ( Collection < GraphNode > result ) { result . addAll ( getChildrenNodes ( ) ) ; for ( CollapseData data : getChildrenCollapse ( ) ) { data . addMemberNodes ( result ) ; } }
add all nodes included in this collapse data , including any nested collapse data . the master node is included in the member nodes .
