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Class guinea.util.EnumerationMapper

java.lang.Object
   |
   +----guinea.util.EnumerationMapper

public class EnumerationMapper

extends Object

implements Enumeration

The principle is more easily explained with an example in Scheme:

(map (lambda (x) (* x x)) '(1 2 3 4))
==> (1 4 9 16)

See Also:

EnumerationFilter

Constructor Index

· EnumerationMapper(Enumeration, Mapper)

Construct a new mapped enumeration.

Method Index

· hasMoreElements()

Tests if this enumeration contains more elements.

· nextElement()

Returns the next element of this enumeration.

Constructors

 public EnumerationMapper(Enumeration enum,
                          Mapper mapping)

Construct a new mapped enumeration. It takes an enumeration and returns a new enumeration that contains the objects of the original enumeration mapped to a new value specified by the mapping.

Parameters:

enum - an enumeration to map.

mapping - the mapping does the mapping from value to a new value

Methods

 public boolean hasMoreElements()

Tests if this enumeration contains more elements.

Returns:

true if this enumeration contains more elements; false otherwise.

 public Object nextElement()

Returns the next element of this enumeration. The corresponding element of the source enumeration is mapped to a new value by the mapping.

Returns:

the next element of this enumeration.

Throws: NoSuchElementException

if no more elements exist.

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