org.netbeans.mdr.persistence.btreeimpl.btreeindex

Class BtreeKeySet.BtreeKeyIterator

java.lang.Object

org.netbeans.mdr.persistence.btreeimpl.btreeindex.BtreeKeySet.BtreeKeyIterator

All Implemented Interfaces:

java.util.Iterator

Enclosing class:

BtreeKeySet

public class BtreeKeySet.BtreeKeyIterator
extends java.lang.Object
implements java.util.Iterator

Iterator over a BtreeKeySet

Field Summary

Fields

Modifier and Type	Field and Description
protected org.netbeans.mdr.persistence.btreeimpl.btreeindex.SearchResult	current
protected int	modCount
protected BtreePageSource	pageSource

Method Summary

Methods

Modifier and Type	Method and Description
protected void	finalize()
boolean	hasNext() Tests whether there are any more elements to return
java.lang.Object	next() Gets the next distinct key in the btree.
void	remove() This is not supported.

Methods inherited from class java.lang.Object

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

Field Detail

current

protected org.netbeans.mdr.persistence.btreeimpl.btreeindex.SearchResult current

pageSource

protected BtreePageSource pageSource

modCount

protected int modCount

Method Detail

hasNext

public boolean hasNext()

Tests whether there are any more elements to return

Specified by:

hasNext in interface java.util.Iterator

Returns:

true if a call to next() would succeed

next

public java.lang.Object next()
                      throws java.util.NoSuchElementException

Gets the next distinct key in the btree. If this is on a different page from the previous value, the old page will be unpinned.

Specified by:

next in interface java.util.Iterator

Returns:

The next distinct key in the btree

Throws:

java.util.NoSuchElementException - If there was any error or if there are no more records

finalize

protected void finalize()

Overrides:

finalize in class java.lang.Object

remove

public void remove()
            throws java.lang.UnsupportedOperationException

This is not supported.

Specified by:

remove in interface java.util.Iterator

Throws:

java.lang.UnsupportedOperationException - Always thrown.