wt.util
Class SerialEnumeration

java.lang.Object
  java.util.AbstractCollection
      java.util.AbstractList
          java.util.Vector
              wt.util.SerialEnumeration

All Implemented Interfaces:

Cloneable, Collection, Enumeration, List, RandomAccess, Serializable

public class SerialEnumeration

extends Vector

implements Enumeration

SerialEnumeration is wrapper class for java.util.Vector that implements java.util.Enumeration. It is intended to be used to create Serializable Enumerations from non-Serializable Enumerations.

The problem with returning non-Serializable Enumerations is that they are not appropriate for client-server communication.

See Also:

Vector, Enumeration, Serializable, Serialized Form

Nested Class Summary

Nested classes inherited from class java.util.AbstractList

Field Summary

private int	current Points to next object to be returned.
private static String	versionID

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

SerialEnumeration()
No-arg constructor.

SerialEnumeration(Enumeration objEnum)
Constructs and initializes to the enumeration passed as argument.

Method Summary

boolean	hasMoreElements() Determines whether there are more elements to be returned.
Object	nextElement() Returns the next element of the vector.

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeRange, retainAll, set, setElementAt, setSize, size, subList, toArray, toArray, toString, trimToSize

Methods inherited from class java.util.AbstractList

iterator, listIterator, listIterator

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

iterator, listIterator, listIterator

Field Detail

versionID

private static final String versionID

See Also:

Constant Field Values

current

private int current

Points to next object to be returned.

Constructor Detail

SerialEnumeration

public SerialEnumeration()

No-arg constructor. Sets the next element to be returned to be the firsrt in the wrapped vector.

SerialEnumeration

public SerialEnumeration(Enumeration objEnum)

Constructs and initializes to the enumeration passed as argument.

Method Detail

hasMoreElements

public boolean hasMoreElements()

Determines whether there are more elements to be returned.

Specified by:

hasMoreElements in interface Enumeration

Returns:

true if there are more elements; false otherwise.

nextElement

public Object nextElement()
                   throws NoSuchElementException

Returns the next element of the vector. Objects are returned in the order they are added to the vector (FIFO).

Specified by:

nextElement in interface Enumeration

Returns:

the next object in the enumeration

Throws:

NoSuchElementException - if there aren't objects to be returned.