question: public boolean canTraverseOutsideSubtree ( ) { if ( null != m_parts ) { int n = m_parts . size ( ) ; for ( int i = 0 ; i < n ; i ++ ) { AVTPart part = ( AVTPart ) m_parts . elementAt ( i ) ; if ( part . canTraverseOutsideSubtree ( ) ) return true ; } } return false ; }
target:  Tell if this expression or it's subexpressions can traverse outside the current subtree.