com.cafesoft.core.collections
Class DoubleEnumeration

java.lang.Object
  |
  +--com.cafesoft.core.collections.DoubleEnumeration

All Implemented Interfaces:

Enumeration

public class DoubleEnumeration

extends Object

implements Enumeration

DoubleEnumeration takes two enumeration collections and handles them like a single Enumeration object.

Since:

7/16/03

See Also:

Enumeration

Constructor Summary

DoubleEnumeration(Enumeration e1, Enumeration e2)
Create a new DoubleEnumeration.

Method Summary

boolean	hasMoreElements() Tests if this enumeration contains more elements.
Object	nextElement() Returns the next element of this enumeration if this enumeration object has at least one more element to provide.

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleEnumeration

public DoubleEnumeration(Enumeration e1,
                         Enumeration e2)

Create a new DoubleEnumeration.

Parameters:

e1 - the first enumeration.

e2 - the second enumeration.

Throws:

NullPointerException - if either e1 or e2 is null.

Method Detail

hasMoreElements

public boolean hasMoreElements()

Tests if this enumeration contains more elements.

Specified by:

hasMoreElements in interface Enumeration

Returns:

true if and only if this enumeration object contains at least one more element to provide; false otherwise.

nextElement

public Object nextElement()

Returns the next element of this enumeration if this enumeration object has at least one more element to provide.

Specified by:

nextElement in interface Enumeration

Returns:

the next element of this enumeration.

Throws:

NoSuchElementException - if no more elements exist.