com.bigdata.btree
Class ReadOnlyEntryIterator<E>

java.lang.Object
  com.bigdata.btree.ReadOnlyEntryIterator<E>

All Implemented Interfaces:

ITupleIterator<E>, Iterator<ITuple<E>>

public class ReadOnlyEntryIterator<E>
extends Object
implements ITupleIterator<E>

Iterator disallows remove().

Version:

$Id: ReadOnlyEntryIterator.java 3651 2010-09-28 10:59:12Z thompsonbry $

Author:

Bryan Thompson

Constructor Summary

ReadOnlyEntryIterator(ITupleIterator<E> src)

Method Summary

boolean	hasNext()
ITuple<E>	next() Advance the iterator and return the ITuple from which you can extract the data and metadata for next entry.
void	remove() Disallowed.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadOnlyEntryIterator

public ReadOnlyEntryIterator(ITupleIterator<E> src)

Method Detail

next

public ITuple<E> next()

Description copied from interface: ITupleIterator

Advance the iterator and return the ITuple from which you can extract the data and metadata for next entry.

Note: An ITupleIterators will generally return the same ITuple reference on on each invocation of this method. The caller is responsible for copying out any data or metadata of interest before calling ITupleIterator.next() again. See TupleFilter which is aware of this and can be used to stack filters safely.

Specified by:

next in interface ITupleIterator<E>

Specified by:

next in interface Iterator<ITuple<E>>

Returns:

The ITuple containing the data and metadata for the current index entry.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<ITuple<E>>

remove

public void remove()

Disallowed.

Specified by:

remove in interface Iterator<ITuple<E>>

Throws:

UnsupportedOperationException - always