Hashtable.EntryIterator

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java.util
Class Hashtable.EntryIterator

java.lang.Object
  java.util.Hashtable.EntryIterator

All Implemented Interfaces:: Iterator

Direct Known Subclasses:: Hashtable.KeyIterator, Hashtable.ValueIterator

Enclosing class:: Hashtable

private class Hashtable.EntryIterator
extends java.lang.Object
implements Iterator

A class which implements the Iterator interface and is used for iterating over Hashtables. This implementation iterates entries. Subclasses are used to iterate key and values. It also allows the removal of elements, as per the Javasoft spec. Note that it is not synchronized; this is a performance enhancer since it is never exposed externally and is only used within synchronized blocks above.

Field Summary

(package private) int count
          The number of elements remaining to be returned by next().

(package private) int idx
          Current index in the physical hash table.

(package private) int knownMod
          The number of modifications to the backing Hashtable that we know about.

(package private) Hashtable.HashEntry last
          The last Entry returned by a next() call.

(package private) Hashtable.HashEntry next
          The next entry that should be returned by next().

Constructor Summary

(package private) Hashtable.EntryIterator()
          Construct a new EtryIterator

Method Summary

boolean hasNext()
          Returns true if the Iterator has more elements.

java.lang.Object next()
          Returns the next element in the Iterator's sequential view.

void remove()
          Removes from the backing Hashtable the last element which was fetched with the next() method.

Methods inherited from class java.lang.Object

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

Field Detail

knownMod

int knownMod

The number of modifications to the backing Hashtable that we know about.

count

int count

The number of elements remaining to be returned by next().

idx

int idx

Current index in the physical hash table.

last

Hashtable.HashEntry last

The last Entry returned by a next() call.

Hashtable.HashEntry next

The next entry that should be returned by next(). It is set to something if we're iterating through a bucket that contains multiple linked entries. It is null if next() needs to find a new bucket.

Constructor Detail