question: public static Set < EvalFactoryNode > recursiveGetChildNodes ( EvalFactoryNode currentNode , EvalNodeUtilFactoryFilter filter ) { Set < EvalFactoryNode > result = new LinkedHashSet < EvalFactoryNode > ( ) ; if ( filter . consider ( currentNode ) ) { result . add ( currentNode ) ; } recursiveGetChildNodes ( result , currentNode , filter ) ; return result ; }
target:  Returns all child nodes as a set.