ucar.nc2.ft.point

Class PointIteratorEmpty

java.lang.Object

ucar.nc2.ft.point.PointIteratorAbstract

ucar.nc2.ft.point.PointIteratorEmpty

All Implemented Interfaces:

PointFeatureIterator

public class PointIteratorEmpty
extends PointIteratorAbstract

An empty PointIterator.

Since:

Oct 1, 2009

Nested Class Summary

Nested classes/interfaces inherited from class ucar.nc2.ft.point.PointIteratorAbstract

PointIteratorAbstract.Filter

Field Summary

Fields inherited from class ucar.nc2.ft.point.PointIteratorAbstract

calcBounds, collection

Constructor Summary

Constructors

Constructor and Description
PointIteratorEmpty()

Method Summary

Modifier and Type	Method and Description
void	finish() Make sure that the iterator is complete, and recover resources.
boolean	hasNext() Check if another PointFeature is available
PointFeature	next() Returns the next PointFeature.
void	setBufferSize(int bytes) Hint to use this much memory in buffering the iteration.

Methods inherited from class ucar.nc2.ft.point.PointIteratorAbstract

calcBounds, finishCalcBounds, getBoundingBox, getCalendarDateRange, getCount, getDateRange, setCalculateBounds

Methods inherited from class java.lang.Object

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

Constructor Detail

PointIteratorEmpty

public PointIteratorEmpty()

Method Detail

hasNext

public boolean hasNext()
                throws java.io.IOException

Description copied from interface: PointFeatureIterator

Check if another PointFeature is available

Returns:

true if another PointFeature is available

Throws:

java.io.IOException - on i/o error

next

public PointFeature next()
                  throws java.io.IOException

Description copied from interface: PointFeatureIterator

Returns the next PointFeature. You must call hasNext() before calling next(), even if you know it will return true.

Returns:

the next PointFeature

Throws:

java.io.IOException - on i/o error

finish

public void finish()

Description copied from interface: PointFeatureIterator

Make sure that the iterator is complete, and recover resources. You must complete the iteration (until hasNext() returns false) or call finish(). may be called more than once.

setBufferSize

public void setBufferSize(int bytes)

Description copied from interface: PointFeatureIterator

Hint to use this much memory in buffering the iteration. No guarentee that it will be used by the implementation.

Parameters:

bytes - amount of memory in bytes