wt.util
Class EnumeratorVector

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

All Implemented Interfaces:

Cloneable, Collection, Enumeration, List, RandomAccess, Serializable

public class EnumeratorVector

extends Vector

implements Enumeration

EnumeratorVector is wrapper class for java.util.Vector that implements java.util.Enumeration.

This class can be used when a Vector is called for and at the same time must be returned as an enumeration. The problem with returning Vector.elements () is that the class returned is not Serializable and therefore not appropriate for client-server communication.

Supported API: true

Extendable: false

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

EnumeratorVector()
No-arg constructor.

EnumeratorVector(Vector v)
Constructs and initializes to the vector 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.
void	reset() Resets the enumeration to its first element.

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

EnumeratorVector

public EnumeratorVector()

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

EnumeratorVector

public EnumeratorVector(Vector v)

Constructs and initializes to the vector passed as argument.

Supported API: true

Method Detail

hasMoreElements

public boolean hasMoreElements()

Determines whether there are more elements to be returned.

Supported API: true

Specified by:

hasMoreElements in interface Enumeration

Returns:

true if there are more lements; 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).

Supported API: true

Specified by:

nextElement in interface Enumeration

Returns:

the next object in the enumeration

Throws:

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

reset

public void reset()

Resets the enumeration to its first element.

Supported API: true