org.openide.util.enum
Class AlterEnumeration

java.lang.Object
  |
  +--org.openide.util.enum.AlterEnumeration

All Implemented Interfaces:

Enumeration

public abstract class AlterEnumeration

extends Object

implements Enumeration

Abstract class that takes an enumeration and alter their elements to new objects. To get this class fully work one must override alter method. Objects in the input and resulting enumeration must not be null.

Constructor Summary

AlterEnumeration(Enumeration en)

Method Summary

protected abstract Object	alter(Object o) Alters objects.
boolean	hasMoreElements()
Object	nextElement()

Methods inherited from class java.lang.Object

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

Constructor Detail

AlterEnumeration

public AlterEnumeration(Enumeration en)

Parameters:

en - enumeration to filter

Method Detail

alter

protected abstract Object alter(Object o)

Alters objects. Overwrite this to alter the object in the enumeration by another.

Parameters:

o - the object to decide on

Returns:

new object to be placed into the output enumeration

hasMoreElements

public boolean hasMoreElements()

Specified by:

hasMoreElements in interface Enumeration

Returns:

true if there is more elements in the enumeration

nextElement

public Object nextElement()

Specified by:

nextElement in interface Enumeration

Returns:

next object in the enumeration

Throws:

NoSuchElementException - can be thrown if there is no next object in the enumeration