AbstractIterator

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org.jscience.util
Class AbstractIterator<E>

java.lang.Object
  org.jscience.util.AbstractIterator<E>


Type Parameters:: E - DOCUMENT ME!

All Implemented Interfaces:: java.util.Enumeration<E>, java.util.Iterator<E>

Direct Known Subclasses:: ObjectEnumerator, ServerLogFile.ServerLogEntryEnumerator

public abstract class AbstractIterator<E>
extends java.lang.Object
implements java.util.Enumeration<E>, java.util.Iterator<E>
extends java.lang.Object
implements java.util.Enumeration<E>, java.util.Iterator<E>

makes it very easy to implement either an Enumeration or an Iterator. The only abstract method is getNextObject(). This method is to supply the next object until it either returns null or throws an exception, which marks that the last object was reached. In addition this class supplies convenient static methods to convert an Enumeration to an Iterator and vice versa.

Since:: 04/16/2004

Constructor Summary
`AbstractIterator()`

Method Summary

static



<F> java.util.Enumeration<F>

enumerate(java.util.Iterator<F> i)
converts an Iterator into an Enumeration

protected abstract E getNextObject()
if no more Element is available, this method is to return null or throw any Exception

boolean hasMoreElements()
DOCUMENT ME!

boolean hasNext()
DOCUMENT ME!

static



<F> java.util.Iterator<F>

iterate(java.util.Enumeration<F> e)
converts an Enumeration into an Iterator

static



<F> java.util.List<F>

list(java.util.Enumeration<F> e)
DOCUMENT ME!

static



<F> java.util.List<F>

list(java.util.Iterator<F> i)
DOCUMENT ME!

E next()
DOCUMENT ME!

E nextElement()
DOCUMENT ME!

void remove()
throws UnsupportedOperationException

static



<F> java.util.Enumeration<F>

reverseEnumeration(java.util.Enumeration<F> e)
reverses the given Enumeration

static



<F extends java.lang.Comparable<? super F>> 


java.util.Enumeration<F>

sortEnumeration(java.util.Enumeration<F> e)
sorts the given Enumeration by the natural order of its elements

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail