public final class Enumerator extends Object implements Enumeration
Enumeration
around a Java2
collection classes object Iterator
so that existing APIs
returning Enumerations can easily run on top of the new collections.
Constructors are provided to easliy create such wrappers.Constructor and Description |
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Enumerator(Collection collection)
Return an Enumeration over the values of the specified Collection.
|
Enumerator(Collection collection,
boolean clone)
Return an Enumeration over the values of the specified Collection.
|
Enumerator(Iterator iterator)
Return an Enumeration over the values returned by the
specified Iterator.
|
Enumerator(Iterator iterator,
boolean clone)
Return an Enumeration over the values returned by the
specified Iterator.
|
Enumerator(Map map)
Return an Enumeration over the values of the specified Map.
|
Enumerator(Map map,
boolean clone)
Return an Enumeration over the values of the specified Map.
|
Modifier and Type | Method and Description |
---|---|
boolean |
hasMoreElements()
Tests if this enumeration contains more elements.
|
Object |
nextElement()
Returns the next element of this enumeration if this enumeration
has at least one more element to provide.
|
public Enumerator(Collection collection)
collection
- Collection whose values should be enumeratedpublic Enumerator(Collection collection, boolean clone)
collection
- Collection whose values should be enumeratedclone
- true to clone iteratorpublic Enumerator(Iterator iterator)
iterator
- Iterator to be wrappedpublic Enumerator(Iterator iterator, boolean clone)
iterator
- Iterator to be wrappedclone
- true to clone iteratorpublic Enumerator(Map map)
map
- Map whose values should be enumeratedpublic Enumerator(Map map, boolean clone)
map
- Map whose values should be enumeratedclone
- true to clone iteratorpublic boolean hasMoreElements()
hasMoreElements
in interface Enumeration
true
if and only if this enumeration object
contains at least one more element to provide, false
otherwisepublic Object nextElement() throws NoSuchElementException
nextElement
in interface Enumeration
NoSuchElementException
- if no more elements existCopyright © 2000–2020 Apache Software Foundation. All rights reserved.