org.apache.directory.mavibot.btree

Interface ValueCursor<V>

Type Parameters:

V - The type for the stored value

All Superinterfaces:

Cursor<V>

All Known Implementing Classes:

EmptyValueCursor

public interface ValueCursor<V>
extends Cursor<V>

A Cursor is used to fetch elements in a BTree and is returned by the

Author:

Apache Directory Project

See Also:

method. The cursor must be closed when the user is done with it.

Field Summary

Fields inherited from interface org.apache.directory.mavibot.btree.Cursor

AFTER_LAST, BEFORE_FIRST

Method Summary

Modifier and Type	Method and Description
V	next() Find the next key/value
V	prev() Find the previous key/value
int	size()

Methods inherited from interface org.apache.directory.mavibot.btree.Cursor

afterLast, beforeFirst, close, hasNext, hasPrev

Method Detail

next

V next()
throws EndOfFileExceededException,
       IOException

Find the next key/value

Returns:

A Tuple containing the found key and value

Throws:

IOException

EndOfFileExceededException

prev

V prev()
throws EndOfFileExceededException,
       IOException

Find the previous key/value

Returns:

A Tuple containing the found key and value

Throws:

IOException

EndOfFileExceededException

size

int size()

Returns:

The number of elements stored in the cursor