public Object copy ( ) { // copy field values into new object BasicDBObject newCopy = new BasicDBObject ( this . toMap ( ) ) ; // need to clone the sub obj for ( final String field : keySet ( ) ) { Object val = get ( field ) ; if ( val instanceof BasicDBObject ) { newCopy . put ( field , ( ( BasicDBObject ) val ) . copy ( ) ) ; } else if ( val instanceof BasicDBList ) { newCopy . put ( field , ( ( BasicDBList ) val ) . copy ( ) ) ; } } return newCopy ; }
Creates a new instance which is a copy of this BasicDBObject .