cascading.util
Class SingleValueCloseableIterator<Value>

java.lang.Object
  cascading.util.SingleValueIterator<Value>
      cascading.util.SingleValueCloseableIterator<Value>

Type Parameters:

Value -

All Implemented Interfaces:

CloseableIterator<Value>, Closeable, Iterator<Value>

Direct Known Subclasses:

SingleCloseableInputIterator

public abstract class SingleValueCloseableIterator<Value>
extends SingleValueIterator<Value>
implements CloseableIterator<Value>

SingleValueIterator is a utility class used for quickly presenting a single value to a consumer expecting both a Closeable and an Iterator interface. After returning the Value value via SingleValueIterator.next(), SingleValueIterator.hasNext() will return false.

This class is especially useful if you do not wish to create a Collection to hold a single value in which to create an Iterator.

Field Summary

Fields inherited from class cascading.util.SingleValueIterator

EMPTY, value

Constructor Summary

SingleValueCloseableIterator(Value value)

Method Summary

abstract void	close()
protected Value	getCloseableInput()

Methods inherited from class cascading.util.SingleValueIterator

hasNext, next, remove, reset

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Constructor Detail

SingleValueCloseableIterator

public SingleValueCloseableIterator(Value value)

Method Detail

getCloseableInput

protected Value getCloseableInput()

close

public abstract void close()
                    throws IOException

Specified by:

close in interface Closeable

Throws:

IOException