org.melati.poem.util
Class MappedEnumeration

java.lang.Object
  org.melati.poem.util.MappedEnumeration

All Implemented Interfaces:

java.util.Enumeration

public abstract class MappedEnumeration
extends java.lang.Object
implements java.util.Enumeration

An Enumeration that encapsulates another and translates each element according to an abstract mapping function.

Implementations must provide mapped(Object).

Constructor Summary

MappedEnumeration(java.util.Enumeration enumeration)
Wrapper Constructor given Enumeration to wrap.

Method Summary

boolean	hasMoreElements()
protected abstract java.lang.Object	mapped(java.lang.Object element)
java.lang.Object	nextElement()

Methods inherited from class java.lang.Object

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

Constructor Detail

MappedEnumeration

public MappedEnumeration(java.util.Enumeration enumeration)

Wrapper Constructor given Enumeration to wrap.

Parameters:

enumeration - Enumeration to wrap

Method Detail

hasMoreElements

public boolean hasMoreElements()

Specified by:

hasMoreElements in interface java.util.Enumeration

See Also:

Enumeration.hasMoreElements()

mapped

protected abstract java.lang.Object mapped(java.lang.Object element)

Parameters:

element - the element of the Enumeration to act on

Returns:

the element after transformation

nextElement

public java.lang.Object nextElement()

Specified by:

nextElement in interface java.util.Enumeration

See Also:

Enumeration.nextElement()