org.deeplearning4j.datasets.iterator.loader

Class MultiDataSetLoaderIterator

java.lang.Object

org.deeplearning4j.datasets.iterator.loader.MultiDataSetLoaderIterator

All Implemented Interfaces:

Serializable, Iterator<MultiDataSet>, MultiDataSetIterator

public class MultiDataSetLoaderIterator
extends Object
implements MultiDataSetIterator

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Iterator<String>	iter
protected org.nd4j.common.loader.Loader<MultiDataSet>	loader
protected int[]	order
protected List<String>	paths
protected int	position
protected MultiDataSetPreProcessor	preProcessor
protected Random	rng
protected org.nd4j.common.loader.SourceFactory	sourceFactory

Constructor Summary

Constructors

Constructor and Description
MultiDataSetLoaderIterator(Collection<String> paths, org.nd4j.common.loader.Loader<MultiDataSet> loader, org.nd4j.common.loader.SourceFactory sourceFactory) Iterate of the specified collection of strings without randomization
MultiDataSetLoaderIterator(Collection<String> paths, Random rng, org.nd4j.common.loader.Loader<MultiDataSet> loader, org.nd4j.common.loader.SourceFactory sourceFactory) Iterate of the specified collection of strings with optional randomization
MultiDataSetLoaderIterator(Iterator<String> paths, org.nd4j.common.loader.Loader<MultiDataSet> loader, org.nd4j.common.loader.SourceFactory sourceFactory) NOTE: When using this constructor (with Iterator<String>) the MultiDataSetIterator cannot be reset.

Method Summary

Modifier and Type	Method and Description
boolean	asyncSupported()
boolean	hasNext()
MultiDataSet	next()
MultiDataSet	next(int i)
void	remove()
void	reset()
boolean	resetSupported()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nd4j.linalg.dataset.api.iterator.MultiDataSetIterator

getPreProcessor, setPreProcessor

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

paths

protected final List<String> paths

iter

protected final Iterator<String> iter

loader

protected final org.nd4j.common.loader.Loader<MultiDataSet> loader

sourceFactory

protected final org.nd4j.common.loader.SourceFactory sourceFactory

rng

protected final Random rng

order

protected final int[] order

preProcessor

protected MultiDataSetPreProcessor preProcessor

position

protected int position

Constructor Detail

MultiDataSetLoaderIterator

public MultiDataSetLoaderIterator(Iterator<String> paths,
                                  org.nd4j.common.loader.Loader<MultiDataSet> loader,
                                  org.nd4j.common.loader.SourceFactory sourceFactory)

NOTE: When using this constructor (with Iterator<String>) the MultiDataSetIterator cannot be reset. Use the other construtor that takes Collection<String>

Parameters:

paths - Paths to iterate over

loader - Loader to use when loading DataSets

sourceFactory - The factory to use to convert the paths into streams via Source

MultiDataSetLoaderIterator

public MultiDataSetLoaderIterator(Collection<String> paths,
                                  org.nd4j.common.loader.Loader<MultiDataSet> loader,
                                  org.nd4j.common.loader.SourceFactory sourceFactory)

Iterate of the specified collection of strings without randomization

Parameters:

paths - Paths to iterate over

loader - Loader to use when loading DataSets

sourceFactory - The factory to use to convert the paths into streams via Source

MultiDataSetLoaderIterator

public MultiDataSetLoaderIterator(Collection<String> paths,
                                  Random rng,
                                  org.nd4j.common.loader.Loader<MultiDataSet> loader,
                                  org.nd4j.common.loader.SourceFactory sourceFactory)

Iterate of the specified collection of strings with optional randomization

Parameters:

paths - Paths to iterate over

rng - Optional random instance to use for shuffling of order. If null, no shuffling will be used.

loader - Loader to use when loading DataSets

sourceFactory - The factory to use to convert the paths into streams via Source

Method Detail

next

public MultiDataSet next(int i)

Specified by:

next in interface MultiDataSetIterator

resetSupported

public boolean resetSupported()

Specified by:

resetSupported in interface MultiDataSetIterator

asyncSupported

public boolean asyncSupported()

Specified by:

asyncSupported in interface MultiDataSetIterator

reset

public void reset()

Specified by:

reset in interface MultiDataSetIterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<MultiDataSet>

next

public MultiDataSet next()

Specified by:

next in interface Iterator<MultiDataSet>

remove

public void remove()

Specified by:

remove in interface Iterator<MultiDataSet>