@InterfaceAudience.Public
@InterfaceStability.Stable
public interface ResetableIterator<T extends Writable>
Iterator
.Modifier and Type | Method and Description |
---|---|
void |
add(T item)
Add an element to the collection of elements to iterate over.
|
void |
clear()
Close datasources, but do not release internal resources.
|
void |
close()
Close datasources and release resources.
|
boolean |
hasNext()
True if a call to next may return a value.
|
boolean |
next(T val)
Assign next value to actual.
|
boolean |
replay(T val)
Assign last value returned to actual.
|
void |
reset()
Set iterator to return to the start of its range.
|
boolean hasNext()
boolean next(T val) throws IOException
reset()
(FIFO).
Note that a call to this may fail for nested joins (i.e. more elements
available, but none satisfying the constraints of the join)IOException
boolean replay(T val) throws IOException
IOException
void reset()
add(T)
to avoid a ConcurrentModificationException.void add(T item) throws IOException
IOException
void close() throws IOException
IOException
void clear()
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