public void addVetoableChangeListener(String propertyName,VetoableChangeListener in_vcl){
  beanContextChildSupport.addVetoableChangeListener(propertyName,in_vcl);
}

public void addVetoableChangeListener ( String propertyName , VetoableChangeListener in_vcl ) { beanContextChildSupport . addVetoableChangeListener ( propertyName , in_vcl ) ; }
method for beancontextchild interface .
