com.baidu.hugegraph.iterator

Class WrappedIterator<R>

java.lang.Object

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

All Implemented Interfaces:

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

Direct Known Subclasses:

BatchMapperIterator, ExtendableIterator, FilterIterator, FlatMapperIterator, LimitIterator, ListIterator, MapperIterator

public abstract class WrappedIterator<R>
extends Object
implements CIter<R>

Field Summary

Fields

Modifier and Type	Field and Description
protected R	current

Constructor Summary

Constructors

Constructor and Description
WrappedIterator()

Method Summary

Modifier and Type	Method and Description
void	close()
static void	close(Iterator<?> iterator)
protected abstract boolean	fetch()
boolean	hasNext()
Object	metadata(String meta, Object... args)
R	next()
protected static <R> R	none()
protected abstract Iterator<?>	originIterator()
void	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

current

protected R current

Constructor Detail

WrappedIterator

public WrappedIterator()

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<R>

next

public R next()

Specified by:

next in interface Iterator<R>

remove

public void remove()

Specified by:

remove in interface Iterator<R>

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

metadata

public Object metadata(String meta,
                       Object... args)

Specified by:

metadata in interface Metadatable

none

protected static final <R> R none()

close

public static void close(Iterator<?> iterator)

originIterator

protected abstract Iterator<?> originIterator()

fetch

protected abstract boolean fetch()