javafe.filespace
Class FilterEnum

java.lang.Object
  javafe.filespace.LookAheadEnum
      javafe.filespace.FilterEnum

All Implemented Interfaces:

java.util.Enumeration

class FilterEnum

extends LookAheadEnum

A FilterEnum filters an underlying Enumeration using a client supplied Filter.

Field Summary

Filter	filter The filter we are using:
protected java.util.Enumeration	underlyingEnum The underlying Enumeration:

Constructor Summary

FilterEnum(java.util.Enumeration E, Filter F)
Filter the Enumeration E using Filter F:

Method Summary

protected java.lang.Object	calcNextElement() Compute the next element in the series, or return null if the series is exhausted.
boolean	hasMoreElements()
java.lang.Object	nextElement()

Methods inherited from class java.lang.Object

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

Field Detail

underlyingEnum

protected java.util.Enumeration underlyingEnum

The underlying Enumeration:

filter

public Filter filter

The filter we are using:

Constructor Detail

FilterEnum

public FilterEnum(java.util.Enumeration E,
                  Filter F)

Filter the Enumeration E using Filter F:

Method Detail

calcNextElement

protected java.lang.Object calcNextElement()

Compute the next element in the series, or return null if the series is exhausted.

Specified by:

calcNextElement in class LookAheadEnum

hasMoreElements

public final boolean hasMoreElements()

Specified by:

hasMoreElements in interface java.util.Enumeration

Returns:

true iff any more elements exist in this enumeration.

nextElement

public final java.lang.Object nextElement()

Specified by:

nextElement in interface java.util.Enumeration