eve.util

Class IteratorEnumerator

java.lang.Object

eve.util.IteratorEnumerator

All Implemented Interfaces:

Enumeration, Iterator

Direct Known Subclasses:

ControlIterator, ObjectIterator, VectorIterator

public class IteratorEnumerator
extends Object
implements Enumeration, Iterator

This is an object that can be used to implement an object that is both an Iterator and an Enumeration. To do this simply override and provide an implementation for Iterator.hasNext() and Iterator.next() and (optionally) Iterator.remove(). By default remove() will throw an UnsupportedOperationException.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IteratorEnumerator()
	IteratorEnumerator(Enumeration enumer) Using this constructor will convert the Enumeration to an Iterator;
	IteratorEnumerator(Iterator it) Using this constructor will convert the Iterator to an Enumeration.

Method Summary

Modifier and Type	Method and Description
boolean	hasMoreElements() This returns the hasNext() method.
boolean	hasNext() Override this to implement your own hasNext().
Object	next() Override this to implement your own next().
Object	nextElement() This returns the next() method.
void	remove() The default version of this will throw an UnsupportedOperationException.

Methods inherited from class java.lang.Object

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

Constructor Detail

IteratorEnumerator

protected IteratorEnumerator()

IteratorEnumerator

public IteratorEnumerator(Iterator it)

Using this constructor will convert the Iterator to an Enumeration.

IteratorEnumerator

public IteratorEnumerator(Enumeration enumer)

Using this constructor will convert the Enumeration to an Iterator;

Method Detail

hasNext

public boolean hasNext()

Override this to implement your own hasNext().

Specified by:

hasNext in interface Iterator

next

public Object next()

Override this to implement your own next().

Specified by:

next in interface Iterator

Returns:

the next Object in the sequence.

hasMoreElements

public final boolean hasMoreElements()

This returns the hasNext() method.

Specified by:

hasMoreElements in interface Enumeration

nextElement

public final Object nextElement()
                         throws NoSuchElementException

This returns the next() method.

Specified by:

nextElement in interface Enumeration

Throws:

NoSuchElementException

remove

public void remove()

The default version of this will throw an UnsupportedOperationException.

Specified by:

remove in interface Iterator