Package org.basex.query.iter

Class DBNodeIter

java.lang.Object

org.basex.query.iter.Iter

org.basex.query.iter.NodeIter

org.basex.query.iter.BasicNodeIter

org.basex.query.iter.DBNodeIter

All Implemented Interfaces:

Iterable<ANode>

public abstract class DBNodeIter
extends BasicNodeIter

Database node iterator.

Author:

BaseX Team 2005-21, BSD License, Christian Gruen

Field Summary

Fields

Modifier and Type	Field	Description
protected final Data	data	Data reference.

Fields inherited from class org.basex.query.iter.BasicNodeIter

EMPTY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DBNodeIter(Data data)	Constructor.

Method Summary

Modifier and Type	Method	Description
abstract DBNode	next()	Returns the next item.
Value	value(QueryContext qc, Expr expr)	Returns a value with all iterated items.

Methods inherited from class org.basex.query.iter.BasicNodeIter

iterator

Methods inherited from class org.basex.query.iter.NodeIter

get, size

Methods inherited from class org.basex.query.iter.Iter

iterValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

data

protected final Data data

Data reference.

Constructor Details

DBNodeIter

protected DBNodeIter(Data data)

Constructor.

Parameters:

data - data reference

Method Details

next

public abstract DBNode next()

Description copied from class: Iter

Returns the next item.

Specified by:

next in class BasicNodeIter

Returns:

resulting item, or null if all items have been returned

value

public Value value(QueryContext qc,
 Expr expr)

Description copied from class: Iter

Returns a value with all iterated items. This method should always be called before single items have been requested. Otherwise, it might not return all items.

Overrides:

value in class Iter

Parameters:

qc - query context

expr - original expression (can be null; if assigned, type of result sequence will be refined)

Returns:

value