question: public static CCriteriumTreeNode findNode ( final CCriteriumTreeNode node , final ICriterium criterium ) { if ( node . getCriterium ( ) == criterium ) { return node ; } for ( final CCriteriumTreeNode child : node . getChildren ( ) ) { final CCriteriumTreeNode childNode = findNode ( child , criterium ) ; if ( childNode != null ) { return childNode ; } } return null ; }
target:  Searches for a criterium tree node that represents a given criterium.