public interface Iterator extends Traversable
| Modifier and Type | Method and Description | 
|---|---|
Value | 
current(Env env)
Returns the current value. 
 | 
Value | 
key(Env env)
Returns the current key. 
 | 
void | 
next(Env env)
Advances to the next row. 
 | 
void | 
rewind(Env env)
Rewinds the iterator so it is at the first row. 
 | 
boolean | 
valid(Env env)
Returns true if the iterator currently points to a valid row. 
 |