} else if( feature.equals( ContactConstructor.NAME ) ) {
obj = new ContactConstructor();
} else if( feature.equals( MemoConstructor.NAME ) ) {
obj = new MemoConstructor();
} else if( feature.equals( TaskConstructor.NAME ) ) {
obj = new TaskConstructor();
}
if( obj != null ) {
scriptEngine.addExtension( feature, obj );
}