cascading.tuple
Class TupleEntryChainIterator

java.lang.Object
  cascading.tuple.TupleEntryIterator
      cascading.tuple.TupleEntryChainIterator

All Implemented Interfaces:

Closeable, Iterator<TupleEntry>

public class TupleEntryChainIterator
extends TupleEntryIterator

TupleEntryChainIterator chains the given Iterators into a single Iterator.

As one iterator is completed, it will be closed and a new one will start.

Constructor Summary

TupleEntryChainIterator(Fields fields, Iterator<Tuple>... iterators)

Method Summary

void	close() Method close closes all underlying resources.
protected void	closeCurrent()
boolean	hasNext() Method hasNext returns true if there is a next TupleEntry
TupleEntry	next() Method next returns the next TupleEntry.
void	remove() Method remove removes the current TupleEntry from the underlying collection.
void	reset(Iterator<Tuple>... iterators)

Methods inherited from class cascading.tuple.TupleEntryIterator

getFields, getTupleEntry

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TupleEntryChainIterator

public TupleEntryChainIterator(Fields fields,
                               Iterator<Tuple>... iterators)

Method Detail

hasNext

public boolean hasNext()

Method hasNext returns true if there is a next TupleEntry

Returns:

boolean

reset

public void reset(Iterator<Tuple>... iterators)

next

public TupleEntry next()

Method next returns the next TupleEntry.

Returns:

TupleEntry

remove

public void remove()

Method remove removes the current TupleEntry from the underlying collection.

close

public void close()

Method close closes all underlying resources.

closeCurrent

protected void closeCurrent()