er.neo4jadaptor.utils.iteration

Class MultiLevelIterator<N,L>

java.lang.Object

er.neo4jadaptor.utils.iteration.MultiLevelIterator<N,L>

Type Parameters:

N - node type

L - leaf type

All Implemented Interfaces:

Iterator<L>

public class MultiLevelIterator<N,L>
extends Object
implements Iterator<L>

Having tree of the fixed depth, where each node is an iterator and this iterator values are child nodes, this class provides uniform way to iterate over such tree's leaves.

Author:

jsobanski

Field Summary

Fields

Modifier and Type	Field and Description
protected int	idx

Constructor Summary

Constructors

Constructor and Description
MultiLevelIterator(Iterator<N> rootIterator, int depth)

Method Summary

Modifier and Type	Method and Description
protected Iterator<?>	createThisLevelIterator(N currVal, int resultLevelIndex) Creates the next level iterator for the current iterator value being currVal.
boolean	hasNext()
L	next()
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

idx

protected int idx

Constructor Detail

MultiLevelIterator

public MultiLevelIterator(Iterator<N> rootIterator,
                          int depth)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<L>

createThisLevelIterator

protected Iterator<?> createThisLevelIterator(N currVal,
                                              int resultLevelIndex)

Creates the next level iterator for the current iterator value being currVal.

Parameters:

currVal -

resultLevelIndex -

Returns:

current level iterator

next

public L next()

Specified by:

next in interface Iterator<L>

remove

public void remove()

Specified by:

remove in interface Iterator<L>