cascading.tuple
Class TupleEntryIterator

java.lang.Object
  cascading.tuple.TupleEntryIterator

All Implemented Interfaces:

Iterator<TupleEntry>

public class TupleEntryIterator
extends Object
implements Iterator<TupleEntry>

Class TupleEntryIterator provides an efficient Iterator for returning TupleEntry elements in an underlying Tuple collection.

Constructor Summary

TupleEntryIterator(Fields fields, Iterator... iterators)
Constructor TupleEntryIterator creates a new TupleEntryIterator instance.

Method Summary

void	close() Method close closes all underlying resources.
Fields	getFields() Method getFields returns the fields of this TupleEntryIterator object.
TupleEntry	getTupleEntry() Method getTupleEntry returns the entry of this TupleEntryIterator object.
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 TypleEntry from the underlying collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleEntryIterator

public TupleEntryIterator(Fields fields,
                          Iterator... iterators)

Constructor TupleEntryIterator creates a new TupleEntryIterator instance.

Parameters:

fields - of type Fields

iterators - of type Iterator

Method Detail

getFields

public Fields getFields()

Method getFields returns the fields of this TupleEntryIterator object.

Returns:

the fields (type Fields) of this TupleEntryIterator object.

getTupleEntry

public TupleEntry getTupleEntry()

Method getTupleEntry returns the entry of this TupleEntryIterator object.

Since TupleEntry instances are re-used, this entry will inherit a new Tuple on every next() call.

Returns:

the entry (type TupleEntry) of this TupleEntryIterator object.

hasNext

public boolean hasNext()

Method hasNext returns true if there is a next TupleEntry

Specified by:

hasNext in interface Iterator<TupleEntry>

Returns:

boolean

next

public TupleEntry next()

Method next returns the next TupleEntry.

Specified by:

next in interface Iterator<TupleEntry>

Returns:

TupleEntry

remove

public void remove()

Method remove removes the current TypleEntry from the underlying collection.

Specified by:

remove in interface Iterator<TupleEntry>

close

public void close()

Method close closes all underlying resources.