org.codehaus.janino.util.iterator

Class TraversingIterator

java.lang.Object

org.codehaus.janino.util.iterator.TraversingIterator

All Implemented Interfaces:

java.util.Iterator

public class TraversingIterator
extends java.lang.Object
implements java.util.Iterator

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 and Description
private java.util.Stack	nest
private java.lang.Object	nextElement
private boolean	nextElementRead

Constructor Summary

Constructors

Constructor and Description
TraversingIterator(java.util.Iterator delegate)

Method Summary

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

nest

private final java.util.Stack nest

nextElement

private java.lang.Object nextElement

nextElementRead

private boolean nextElementRead

Constructor Detail

TraversingIterator

public TraversingIterator(java.util.Iterator delegate)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator

next

public java.lang.Object next()

Specified by:

next in interface java.util.Iterator

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 java.util.Iterator

Throws:

java.lang.UnsupportedOperationException - iff the Iterator currently being traversed doesn't support element removal

See Also:

Iterator.remove()