com.baidu.hugegraph.iterator

Class FlatMapperIterator<T,R>

java.lang.Object

com.baidu.hugegraph.iterator.WrappedIterator<R>

com.baidu.hugegraph.iterator.FlatMapperIterator<T,R>

All Implemented Interfaces:

CIter<R>, Metadatable, AutoCloseable, Iterator<R>

Direct Known Subclasses:

FlatMapperFilterIterator

public class FlatMapperIterator<T,R>
extends WrappedIterator<R>

Field Summary

Fields

Modifier and Type	Field and Description
protected Iterator<R>	batchIterator

Fields inherited from class com.baidu.hugegraph.iterator.WrappedIterator

current

Constructor Summary

Constructors

Constructor and Description
FlatMapperIterator(Iterator<T> origin, java.util.function.Function<T,Iterator<R>> mapper)

Method Summary

Modifier and Type	Method and Description
void	close()
protected boolean	fetch()
protected boolean	fetchFromBatch()
protected Iterator<T>	originIterator()
protected void	resetBatchIterator()

Methods inherited from class com.baidu.hugegraph.iterator.WrappedIterator

close, hasNext, metadata, next, none, remove

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

forEachRemaining

Field Detail

batchIterator

protected Iterator<R> batchIterator

Constructor Detail

FlatMapperIterator

public FlatMapperIterator(Iterator<T> origin,
                          java.util.function.Function<T,Iterator<R>> mapper)

Method Detail

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Overrides:

close in class WrappedIterator<R>

Throws:

Exception

originIterator

protected Iterator<T> originIterator()

Specified by:

originIterator in class WrappedIterator<R>

fetch

protected final boolean fetch()

Specified by:

fetch in class WrappedIterator<R>

fetchFromBatch

protected boolean fetchFromBatch()

resetBatchIterator

protected final void resetBatchIterator()