Package org.apache.lucene.spatial.prefix.tree

Class CellIterator

java.lang.Object

org.apache.lucene.spatial.prefix.tree.CellIterator

All Implemented Interfaces:

Iterator<Cell>

Direct Known Subclasses:

NumberRangePrefixTree.NRCell, PackedQuadPrefixTree.PrefixTreeIterator

public abstract class CellIterator
extends Object
implements Iterator<Cell>

An Iterator of SpatialPrefixTree Cells. The order is always sorted without duplicates.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields

Modifier and Type	Field	Description
protected Cell	nextCell
protected Cell	thisCell

Constructor Summary

Constructors

Constructor	Description
CellIterator()

Method Summary

Modifier and Type	Method	Description
Cell	next()
Cell	nextFrom(Cell fromCell)	Gets the next cell that is >= fromCell, compared using non-leaf bytes.
void	remove()	This prevents sub-cells (those underneath the current cell) from being iterated to, if applicable, otherwise a NO-OP.
Cell	thisCell()	Returns the cell last returned from next().

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, hasNext

Field Details

nextCell

protected Cell nextCell

thisCell

protected Cell thisCell

Constructor Details

CellIterator

public CellIterator()

Method Details

thisCell

public Cell thisCell()

Returns the cell last returned from next(). It's cleared by hasNext().

nextFrom

public Cell nextFrom(Cell fromCell)

Gets the next cell that is >= fromCell, compared using non-leaf bytes. If it returns null then the iterator is exhausted.

remove

public void remove()

This prevents sub-cells (those underneath the current cell) from being iterated to, if applicable, otherwise a NO-OP.

Specified by:

remove in interface Iterator<Cell>

next

public Cell next()

Specified by:

next in interface Iterator<Cell>