org.eclipse.rdf4j.sail.nativerdf.btree

Interface RecordIterator

All Superinterfaces:

AutoCloseable, Closeable

public interface RecordIterator
extends Closeable

An iterator that iterates over records, for example those in a BTree.

Author:

Arjohn Kampman

See Also:

BTree

Method Summary

Modifier and Type	Method and Description
void	close() Closes the iterator, freeing any resources that it uses.
byte[]	next() Returns the next record in the BTree.
void	set(byte[] record) Replaces the last record returned by next() with the specified record.

Method Detail

next

byte[] next()
     throws IOException

Returns the next record in the BTree.

Returns:

A record that is stored in the BTree, or null if all records have been returned.

Throws:

IOException - In case an I/O error occurred.

set

void set(byte[] record)
  throws IOException

Replaces the last record returned by next() with the specified record.

Throws:

IOException - In case an I/O error occurred.

close

void close()
    throws IOException

Closes the iterator, freeing any resources that it uses. Once closed, the iterator will not return any more records.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException - In case an I/O error occurred.