net.sf.zig_project.gpl.common.enumerations
Class JoinedEnumeration

java.lang.Object
  net.sf.zig_project.gpl.common.enumerations.JoinedEnumeration

All Implemented Interfaces:

Enumeration

public class JoinedEnumeration

extends Object

implements Enumeration

Joins an Enumeration of Enumerations. This class will enumerate over a series of independant enumerations, allowing several collections of elements to behave as a joined collection.

Version:

April 20, 2005

Author:

Frank Ziglar

Field Summary

protected Enumeration	active_enum The current enumeration in sequence being enumerated
protected Enumeration	series The sequence of Enumerations this instance will join

Constructor Summary

JoinedEnumeration(Enumeration e)
Creates the enumerable joint.

Method Summary

boolean	hasMoreElements() Determines if at least one element is still available in at least one enumeration.
Object	nextElement() Retrieves the next element within this enumeration.

Methods inherited from class java.lang.Object

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

Field Detail

series

protected final Enumeration series

The sequence of Enumerations this instance will join

active_enum

protected Enumeration active_enum

The current enumeration in sequence being enumerated

Constructor Detail

JoinedEnumeration

public JoinedEnumeration(Enumeration e)

Creates the enumerable joint.

Parameters:

e - the sequence of Enumerations to be joined

Method Detail

hasMoreElements

public boolean hasMoreElements()

Determines if at least one element is still available in at least one enumeration.

Specified by:

hasMoreElements in interface Enumeration

Returns:

true there are still remaining elements to be enumerated, false otherwise

nextElement

public Object nextElement()

Retrieves the next element within this enumeration.

Specified by:

nextElement in interface Enumeration

Returns:

the next element in this enumeration

Throws:

NoSuchElementException - if there are no remaining elements