Class TraversingIterator

java.lang.Object

org.codehaus.commons.compiler.util.iterator.TraversingIterator

All Implemented Interfaces:

Iterator<Object>

public class TraversingIterator
extends Object
implements Iterator<Object>

An Iterator that iterates over a delegate, and while it encounters an array, a Collection, an Enumeration or a Iterator element, it iterates over it recursively.

Be aware that hasNext() must read ahead one element.

Field Summary

Fields

Modifier and Type	Field	Description
private final Stack<Iterator<?>>	nest
private Object	nextElement
private boolean	nextElementRead

Constructor Summary

Constructors

Constructor	Description
TraversingIterator(Iterator<?> delegate)

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()
Object	next()
private boolean	readNext()	Reads the next element and stores it in nextElement.
void	remove()

Methods inherited from class Object

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

Methods inherited from interface Iterator

forEachRemaining

Field Details

nest

private final Stack<Iterator<?>> nest

nextElement

@Nullable
private Object nextElement

nextElementRead

private boolean nextElementRead

Constructor Details

TraversingIterator

public TraversingIterator(Iterator<?> delegate)

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Object>

next

public Object next()

Specified by:

next in interface Iterator<Object>

readNext

private boolean readNext()

Reads the next element and stores it in nextElement.

Returns:

false if no more element can be read

remove

public void remove()

Specified by:

remove in interface Iterator<Object>

Throws:

UnsupportedOperationException - The Iterator currently being traversed doesn't support element removal

See Also:

• Iterator.remove()