@ SuppressWarnings ( "rawtypes" ) public boolean removeAll ( Collection c ) { boolean flag = true ; if ( c == null ) throw new NullPointerException ( " null collection ! " ) ; for ( Iterator it = c . iterator ( ) ; it . hasNext ( ) ; ) { flag &= this . remove ( it . next ( ) ) ; } return flag ; }
Removing an SBB entity from a child relation initiates a cascading removal of the SBB entity tree rooted by the SBB entity similar to invoking the remove method on an SBB local object that represents the SBB entity .