xxl.cursors
Class EnumerationCursor

java.lang.Object
  |
  +--xxl.cursors.EnumerationCursor

public class EnumerationCursor

extends java.lang.Object

implements Cursor

This class is a wrapper for the old java.util.Enumeration class.

Field Summary

protected java.util.Enumeration

enumeration

Constructor Summary

EnumerationCursor(java.util.Enumeration enumeration)
Creates an EnumerationCursor.

Method Summary

void	close() Closes the Cursor.
boolean	hasNext() Returns true if the iteration has more elements.
java.lang.Object	next() Returns the next element in the iteration.
java.lang.Object	peek() Shows the next element in the iteration without removing it (Always throws UnsupportedOperationException).
void	remove() Removes from the underlying collection the last element returned by the iterator (optional operation/Always throws UnsupportedOperationException.).
void	reset() Resets the Cursor to its initial state (Always throws UnsupportedOperationException.).
boolean	supportsPeek() Returns true if the peek operation is supported by this PeekIterator (Always returns false).
void	update(java.lang.Object object) Replaces the object that was returned by the last call to next() or peek() (Always throws UnsupportedOperationException.).

Methods inherited from class java.lang.Object

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

Field Detail

enumeration

protected java.util.Enumeration enumeration

Constructor Detail

EnumerationCursor

public EnumerationCursor(java.util.Enumeration enumeration)

Creates an EnumerationCursor.

Parameters:

enumeration - the Enumeration object to be wrapped by this object

Method Detail

close

public void close()

Closes the Cursor. Signals the cursor to cleanup resources, close files, etc. After a call to close() calls to methods like next() or peek() are not guarantied to yield proper results.

Specified by:

close in interface Cursor

hasNext

public boolean hasNext()

Returns true if the iteration has more elements.

Specified by:

hasNext in interface Cursor

Returns:

true if the iterator has more elements

next

public java.lang.Object next()
                      throws java.util.NoSuchElementException

Returns the next element in the iteration.

Specified by:

next in interface Cursor

Returns:

the next element in the iteration

Throws:

java.util.NoSuchElementException - iteration has no more elements

peek

public java.lang.Object peek()
                      throws java.lang.UnsupportedOperationException

Shows the next element in the iteration without removing it (Always throws UnsupportedOperationException).

Specified by:

peek in interface Cursor

Returns:

the next element in the iteration

Throws:

java.util.NoSuchElementException - iteration has no more elements

java.lang.UnsupportedOperationException - if the peek operation is not supported by this PeekIterator

remove

public void remove()
            throws java.lang.UnsupportedOperationException

Removes from the underlying collection the last element returned by the iterator (optional operation/Always throws UnsupportedOperationException.).

Specified by:

remove in interface Cursor

Throws:

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been calle after the last call to the next method.

java.lang.UnsupportedOperationException - if the remove operation is not supported by this PeekIterator.

reset

public void reset()
           throws java.lang.UnsupportedOperationException

Resets the Cursor to its initial state (Always throws UnsupportedOperationException.).

Specified by:

reset in interface Cursor

supportsPeek

public boolean supportsPeek()

Returns true if the peek operation is supported by this PeekIterator (Always returns false).

Specified by:

supportsPeek in interface Cursor

Returns:

true if the peek operation is supported by this PeekIterator.

update

public void update(java.lang.Object object)
            throws java.lang.UnsupportedOperationException

Replaces the object that was returned by the last call to next() or peek() (Always throws UnsupportedOperationException.). This operation must not be called after a call to hasNext(). It should follow a call to next() or peek().

Specified by:

update in interface Cursor

Parameters:

object - the object that replaces the object returned by the last call to next() or peek()